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@StanthamaN2012

7 жыл бұрын

Grant Thompson - "The King of Random" second today

@techseansrun5192

7 жыл бұрын

Hi I love all of your vid:).

@ThatBoiiB

7 жыл бұрын

Grant Thompson - "The King of Random" second

@whoc4r3s117

7 жыл бұрын

I ordered your fidget.

@luk3909

7 жыл бұрын

Grant Thompson - "The King of Random" hi

Copper dissolves gasses when hot and releases them when cooling thus it is much easier to cast if you add something to disrupt that like a hand full of zinc pennies or a roll of lead free solder.

@screengames5307

7 жыл бұрын

He said that he's already done bronze, and wanted to try pure copper. Also nice to see you here Cody.

@theCodyReeder

7 жыл бұрын

Well in that case he is going to need some flux and better casting medium.

@joes9987

7 жыл бұрын

Not a bad idea though

@Subhuman828

7 жыл бұрын

woah, Cody! agreed. REALLY nice to see you here.

@Entele21

7 жыл бұрын

Wouldn't borax help as well?

If the sand is wet the moment the molten copper touches the sand it will evaporate the water. When liquid water changes to steam it expands in volume by about 22 times. That forms a steam barrier between your molten copper and the sand and since it takes a LOT of heat to raise water from room temperature to 100C and then to steam (about 4200 Joules per gram per degree Celsius of liquid water + whatever you need to change water to steam) your copper will conform to the mold of the steam barrier which will probably not be as uniform as the sand mold. That steam also pushes on the 3 little sand pillar in the middle. I think the reason they kept popping off are: 1) Steam forming at the bottom of the mold ( like the bottom face of your gear) is under a lot of pressure since the hole gear is on top of it. It presses against the bottom of your pillars deforming it creating a weakness on a already weak spot. 2) That spot is already under a lot stress from the hydrostatic pressure from the molten copper. (One of the reasons damns aren't perpendicular to the ground, but thicker at the bottom). 3) Sand is also less dense and buoyant force will push the pillar to the surface of the molten copper. Adding water might seem to make the less less "brittle" but i think it's actually detrimental during the actual molding. What I would suggest would be: 1) make the mold more shallow. Maybe make the gear half as thick? It should help the buoyancy problem since it increases proportionally to the volume of your pillar. 2) Less water. Aside from the steam problem it will allow your copper to cool more slowly, which i think was one of the things you wanted. 3) Pour slowly. I noticed the pillar that pops off is usually near where you pour. Copper is very heavy and dense. After is hits the bottom it will start dispersing throughout the bottom of your mold. It will put a lot of lateral force on whatever is in it's way. (Think standing in front of an avalanche, you are the pillar. as you continuously pour copper it's as if snow would keep coming down on you). Maybe a slow steady pour moving around the mold? Ideally you would want all sides of the pillar to have the same height of copper so all sides are being pushed by the copper with the same amount of force.

@thog4529

7 жыл бұрын

Alex Kim nerd

@chadunderwood5924

7 жыл бұрын

smart nerd

@rainmannoodles

7 жыл бұрын

You're exactly right about the buoyant forces from the copper. It's much more dense than aluminum so the mold needs to be stronger. Besides the other tricks, I would have tried embedding some copper wire in the mold in the pillars to reinforce it; just poking a bunch of wires in at different angles would probably make it a lot stronger. I couldn't say whether or not it would be strong *enough* without trying it, though.

@briannaranjo676

7 жыл бұрын

Stone Yeti1234 dont be mad cause you're not smart bro😂😂

I just remembered how much I loved this guy

@_Ainz

4 жыл бұрын

He's dead

@nixonat8168

4 жыл бұрын

@@_Ainz Not in my world

@_Ainz

4 жыл бұрын

U don't have a world

@oopsmybad769

4 жыл бұрын

The Legens same

@oopsmybad769

4 жыл бұрын

xXskeletronXx I have a world In minecraft lol

I worked in a foundry for many years. We have chemicals to our sand so it sets better and holds it's shape better. One other thing is we never pour directly into the piece we are making. We have runners and vents which allow the metal to flow and fill. I hope this helps.

@TheStarboy94

5 жыл бұрын

Was thinking the same.. would be so easy and perfect with vents

@neb-taui-djeser1060

5 жыл бұрын

Waterglass to the sand, hardened with CO2.

@redpearyear

4 жыл бұрын

to bad he can't see this😭😭😭😭

@gyrozeppeli8932

4 жыл бұрын

@@redpearyear wait he has dead?? Ive seen some comments bout that

@smolpotatoe

4 жыл бұрын

@@gyrozeppeli8932 yes sadly :,( R.I.P

Hi Grant, I can help with the issues your having. your close but there are a few simple things that need to be addressed. Your green sand needs to be "milled" this is the process of completely covering your sand with the clay. its a crappy, long and labor intensive process but its the only way to make viable "true" green sand. effectively you need to mix the sand aloooot, one of the best ways is to place it on a tarp and walk on it for ages aka more than 10 mins. you could also put it in a large plastic container and squash it by hand but its alot harder. Second i would recommend not pouring your copper directly into the casting shape but rather through a channel so that falling copper doesn't hit your pattern sand. (all sand casting is done this way unless your using petrobond) The falling copper could weaken the sand or directly damage the pattern. copper is heavy! so it gathers abit of energy as it falls. Last, I would highly highly highly recommend you use the top of your mold! you made it for a reason! that can brace the clay and its possible you can skip the above two steps if you simply give the mold that extra support. hope this helps. I have cast copper, aluminium, gold and silver for years, I even did my undergrad research project on perfecting a high resolution mixture. if you get questions pm me.

@erectopotomus7799

7 жыл бұрын

Dam bro, write a book

@redacted2359

7 жыл бұрын

Erectopotomus this practically is a book… a real long book

@Matsokune

7 жыл бұрын

Just a dude wanting to help, is that so wrong?

@appleappington7346

7 жыл бұрын

Really nice of you to help !! I was 263 like !!

@dracomeateor3

7 жыл бұрын

I was about to offer the advice with the channel! Beat me to the punch by less than an hour! DANGIT!

Grant, i think the water in the sand starts boiling and thats why it becomes unstable. The copper is also very heavy and thats why the sand starts floating on top.

@samko0802

7 жыл бұрын

late but I think the copper is so hot that the mold drys as it is being cast

@tacotaho7865

7 жыл бұрын

renevank im just wondering what would happen if he used kinetic sand? Is there any difference?

@renevank

7 жыл бұрын

Wilbert Coloma do you mean hydrophobic sand? That would be impossible because it would stay soft by not absorbing water. That way it could not form a solid mold.

@patrickmeyer2802

6 жыл бұрын

If you did it properly and used epoxy sand then everything would be okay.

@larrytischler8769

6 жыл бұрын

renevank Yes. The damp sand method works for rough shapes only. But is extremely useful for reusing scrap lead in making expensive weights for surf fishing. Also molten lead is not too hot to have to use specialized insulation while casting.

Failing never stopped you. Forever Rest In Peace the true king of random

@riccardomancini784

4 жыл бұрын

GavDawg how did he die

@z0nch288

4 жыл бұрын

@@riccardomancini784 paramotor

@System-ru5yt

4 жыл бұрын

@@riccardomancini784 obama sniped him in the pingus

@edcaluag7655

4 жыл бұрын

Paragliding

@adamkeat7363

3 жыл бұрын

He had better video ideas than nate and cali

My favorite youtuber. I wish I had the opportunity to tell him how much I learned from him. Rest in peace my friend and thank you.

Why were you casting it in an open mould? why not just making a closed mould with a gate, runner and riser system, in that way you can keep the sand in place, control the pouring speed and it also has a better insulation to prevent premature solidification. The same way you cast the brass knuckles.

@weiwang8917

7 жыл бұрын

You are foundry man. Haha

@1745pacman

7 жыл бұрын

Yifan yifan I agree...an enclosed mold might help!

@snowiethetoolguy

7 жыл бұрын

Agreed. And it will also keep the heat in and the material won't solidify causing a cold joint where the too faced meet

@colbytroutman2882

7 жыл бұрын

Also it would keep "pressure" on the copper and keep it in place

@ChemicallyEnabledMan

7 жыл бұрын

Yifan yifan... Exactly what I was thinking. 👍👍

You need to make the mold double sided with sand on the top and bottom and use at least 2 breather holes and one pour hole. The added sand on top will help insulate all the heat and keep it molten for longer. Additionally, the sand on top will prevent the center sections from lifting up and floating.

@thinker44duhhuh22

6 жыл бұрын

Matthew Utt ii

@michalbina6178

6 жыл бұрын

Thinker 44 Duh huh i

@TheBoatPirate

6 жыл бұрын

you're very right Matthew

@bulwinkle

6 жыл бұрын

Also the riser where you pour the molten metal in will act as a reservoir to replenish through casting as it contracts.

@Johollister

6 жыл бұрын

yes! That is the main reason he is having so many problems.

Rip man, watching every vid and commenting RIP

@robbieholliday3002

4 жыл бұрын

Rip

@robbieholliday3002

4 жыл бұрын

Rip

@landosuttler1860

4 жыл бұрын

Rest in peace

@ludicrousfun7838

4 жыл бұрын

Press F to respect.... Rest in peace.

@kingofspades9720

4 жыл бұрын

F

RIP. Hopefully wherever you are you are at peace 🙏

@jaredreed13

4 жыл бұрын

Lets Nominate him this year for a Streamy!

@ballininyoujawin3324

4 жыл бұрын

hes dead?

@gimmeyotoes7400

4 жыл бұрын

What happend?

@mikagamingwutbpstb6487

4 жыл бұрын

Trent Wickham unforchintly, we now don’t know what’s he doing now.

@mikagamingwutbpstb6487

4 жыл бұрын

Jared Reed Yea! Let’s nonnanate Nate!

Professional caster to the rescue! Don't melt the Styrofoam, and skim the slag off the top of the copper. It's a defective impurity. Also a neat trick to the sand is add sand epoxy.

@deadinchina22

7 жыл бұрын

Yeah I was so confused as to why he kept melting the Styrofoam first!

@boojum7913

7 жыл бұрын

KingSusan420 also the sand was to wet and here's why the water evaporated so fast the sand whent upward

@LeeMcC123

7 жыл бұрын

KingSusan420 I'm no caster but I've seen others remove their mould using screws to leave just a cavity in the sand, would that help?

@RmRoyalflush

7 жыл бұрын

KingSusan420 "professional caster" you should imediatly see that his sand is NOT for casting. Its just some play sand, he needs clay to make real shapes that hold up. Also he wouldnt need styrofoam and even if he would still use it, one template would be enough (you know you can take them out if you use proper casting sand)

@RmRoyalflush

7 жыл бұрын

Charles Tull The sand is NOT for casting.

you need two sides of the green sand and make a tube from the middle of the gear to pour the copper from. this allow the shape to stay in tact and the molten copper will not cool that fast.

@MossPalone

7 жыл бұрын

and keep the styrofoam in there. it helps to maintain the shape.

@JesseDahirKanehl

7 жыл бұрын

Jude Lau +

@christopherscott3641

7 жыл бұрын

Jude Lau was going to say the same

@fhsrgadfasdf

7 жыл бұрын

Just wanted to write the same :D Ps: one tube must be one one edge of the gear and the other tube on the other edge so gasses could escape and the would stay intact becouse metal would shrink in the tubes( risers) and not in the gear.

@runnrebel

7 жыл бұрын

Juse Lau is correct ... You should do this project with a 2 part mold just like how engines other metal components are made. The 2 part mold will yield a better casting!

This man was a legend, Hes such a family man and trying to be so kid friendly that he dosent curse and instead of saying "Holy S***" He said "Holy heck" This man was a true LEGEND

@AhnafAbdullah

4 жыл бұрын

That's what I like, KZreadrs nowadays are a bunch of potty mouths

@inferiumpvp6412

4 жыл бұрын

@@AhnafAbdullah "potty mouths"

Look, I'm trying, okay? But sometimes, I just get overwhelmed. I'll try to be better from now on, I promise.

@alexkontoulhs3643

5 жыл бұрын

hahahahaha!!!

@hithanksforcheckinginimsti7068

5 жыл бұрын

It's okay, we still love you. Want a hug?

@dicocraftgames6829

5 жыл бұрын

get out here of here and go get your brother, Bronze. We never liked you anyways copper. You are just a sad and lumpy metal

@dicocraftgames6829

5 жыл бұрын

@Brooke Pollitt lol

@theoofs8404

5 жыл бұрын

This would not work due to the fake that the clay would over heat and crack

Just a thought from my high school metal shop days, but in the process of making bronze for a trinket I tested the capability of our school foundry with copper. I discovered that in casting I needed to add a fluxing agent in order to get a clean cast as gasses end up bubbling up through the molten copper. Another thought to avoid the steam issue might me to switch to oil dampened sand. I don't know the particular oil offhand, but again in my metal shop days we used black sand casting that utilized oil as the binding agent. I'm sure a google search might shed a little light on that option. You might also try using both halves of the sand casting to hold down the middle sections in the radioactive sign so that they don't float away. Anyways, thanks for all the great content!

@dj1NM3

7 жыл бұрын

linseed oil. You could clearly see vaporised water (steam) from the green sand bubbling up through the molten copper.

Great vid bud I might have some idea's as to why your having difficulties, I have done greensand copper casts before, I am pretty sure your center detail is popping out because of two reasons. 1: the additional moisture in your greensand allows for steam to be created with the metal being so hot its instant which will weaken your structure as the steam cannot escape through the metal so it pushes through the sand. Ideally greensand is about 6% moisture, and 2: your only using half of your mold, use both the cope and the drag and it will support your mold alot more just make some sprue holes and pour the metal into it the mold will insulate the copper and im sure you will get better results. Feel free to contact me if you wanna talk more about your greensand copper casting,

@Richard-ot2jn

7 жыл бұрын

Jiyuu-jin lets hope hee sees this comment !!! Grant Notice HIM HI HAS A IDEA!!!!

@thatguyontheright1

7 жыл бұрын

I was going to say he isn't getting it hot enough. Sure it's molten but it's cooling too fast and the wet sand is making the situation worse.

@chefmoe9086

7 жыл бұрын

He should also use oil instead of water and he should use very fine sand

@mightbetwitchy3323

7 жыл бұрын

Jiyuu-jin mills help

@ivoandricic1088

7 жыл бұрын

TGOTR yeah but what you were going to say isnt making any sense because if the temperature difference is higher it will cool even faster, and he cannot get it hotter. he held it in there for 20min, thats enough time to get the copper to tha max temperature - the oven isnt getting any hotter so the copper wont neither

I watch all of Grant's videos again But its not the same

@EmiDucky

4 жыл бұрын

Story Time that hit me..

@damiankuiper2125

4 жыл бұрын

Yeah 😭😭😭😔😔

@Istame

3 жыл бұрын

Rip

@skeletoon

3 жыл бұрын

😢🥺💔

1. You need to use bentonite clay mixed with the sand to make it stick together. 2. You don't need to burn the foam out. 3. You really should use a cope and drag type mold with gating, your results will be much better with few failed castings.

The problem you had was all because of density! At 7,898 g/cm3, molten copper is very dense. Whereas the density of wet sand is roughly 1.905 g/cm3. The three sand pieces kept falling apart because they wanted to float on top of the molten copper!! Hope this helps!

@PhoeniX_the_Gray

7 жыл бұрын

Alex Agaciak also, it did not show if he was using the mesh strainer? It really needs the fine packed sand to hold together better. Grant don't give up, but use finer grade sand first.

@Augready

7 жыл бұрын

all he has to do is put a weight on top of the 3 sans pieces before he pours. may want to reinforce the sides of the 3 pieces as well

@danielbrown9393

7 жыл бұрын

I came to add this, found it at the top.

@davidbarts6144

7 жыл бұрын

I vote for doing this, too.

@charlesmorris100

7 жыл бұрын

Put a lid on it nerd!

Grant...grant...grant... The reason the sand kept on popping out was because you didn't pat it enough before you were casting... you need to pat the sand harder and every time you add a new layer. Watch press tubes video, he patted the sand constantly until it was almost a complete solid, the harder you pound the sand around the styrofoam, the more secure and tough your mold will hold while casting.

@tobinator680

7 жыл бұрын

Also i think it would be better to put the 2. sandbox on top so that it also holds in the sand

@ivailoi123

7 жыл бұрын

He should add a better binding agent. Something like powder made of cat litter sand grinned with coffee grinder.

@r.wambui3707

7 жыл бұрын

TrendCrave I thought so too

@mewmewdesigns895

7 жыл бұрын

i also dont think his sand mixture is right

@theforgottenoxlegend6600

7 жыл бұрын

Trend craving its you yay

The fact that. you showed us the failures is testament to your character. I say thank you. As a learning exercise some of the other guys use a releasing agent such as talcum powder to allowing easy release of the template. One guy also talked about using oil to bind the sand. He didn't. say what type of oil. This was an excellent learning resource, thank you.

just a thought, i used to work in the art department of a foundry that produced brass belt buckles, the sand they used was mixed with regular, new motor oil. They were able to achieve fairly fine detail. Their process was very similar to what you are doing. they had hydraulic tampers instead of wood blocks. Each casting was pressed from a reusable Zinc master. They reused their sand after sieving it for chunks.They always faced with new sand. Since was not in the foundry section, i can only offer what i observed. keep up the great videos, i enjoy they immensely.

What you need to do is to sandwich the mold in a top and bottom layer and put two holes on the top layer so one is to pour the liquid in and the others to vent. And it should keep the liquid in the mold hot so the copper can form to the mold better!

@tonywalker8030

7 жыл бұрын

Josh Galanda what he said.

@saddenedwiseman810

7 жыл бұрын

Josh Galanda I have done copper green sand molds using the above method and can confirm. The issue isnt the temperature of the copper it is the density of sand versus copper...The sand is experiencing a boyant force...Correct this by burrying the mold in packed green sand on both ends and then tunneling to a part of the finished product. This will result in the mold having a rod shaped apendage which can easilly be sawed and then filed off.

@method9706

7 жыл бұрын

reece Jones but the thing is the copper wouldn't be easy to sand down and it is inefficient.

@TheBeavadelic

7 жыл бұрын

Josh Galanda risers & gates!

@hanaji7787

7 жыл бұрын

that's exactly how i did it when i took foundry class except i casted bronze. also, i had to take the model out before pouring any molten metal in. the sand i used was red in color

You need a closed mold, not an open one- the little nubs won't be able to float up if they are joined to both the upper and lower surfaces.

@alfrediannegarciaquirante5761

7 жыл бұрын

SuicideNeil have you molded one of these before?

@Ramierrrrr

7 жыл бұрын

SuicideNeil ima large NUBB

@tontonco240

7 жыл бұрын

this. do this also the foam needs to be removed after molding the sand

@Ramierrrrr

7 жыл бұрын

well

@graygravity3856

7 жыл бұрын

Yeah, But sand destroying is another problem. Thats why it would need to be a closed CARDBOARD MOLD- JK. It would have to be a clay mold too if he wants the holes in the gears.

I wish I possessed your ability to maintain such composure and positivity during what I can tell is so stressful and aggravating

Its the sand.. Has nothing to do with the copper.

@bradleybellwether3063

5 жыл бұрын

Noah Saucier ...If he knows that, why does he not understand why it won't work? Jason A. is just giving facts not ridiculing him, so no need for the butt hurt.

@prof.esrever7823

5 жыл бұрын

Bradley Bellwether lmao nobody was butthurt. You're the one jumping to conclusions.

@noodleflakes4364

5 жыл бұрын

@@bradleybellwether3063 surely sounds like you're the butt hurt one here bud

@thelittlebrat6418

5 жыл бұрын

The green sand clearly didn't have enough clay in it.😞

@motherboard_messtm3648

4 жыл бұрын

Noah Saucier the sand is like glass so it moves easily with copper

Copper is only $2.20/lbs, so unless you have about 30lbs in that gear it isn't $60 of copper. The reasons copper tubes cost that much is the work that goes into processing them. After working with copper I'm sure you are aware that it's not easy to create tubes. P.S. your foundry video was what got me into your channel, please keep doing foundry videos! Test alloys and stuff, I don't know, just do more!

@arthurdduda8233

7 жыл бұрын

I'm sure he ment the retail price to begin with...

@CarlosMartinez-ko8sz

7 жыл бұрын

Andrew Evenson Genius😒

@gelerson1642

7 жыл бұрын

Different prices in different locations. Places that don't have quick/easy access to copper will have higher prices due to transport costs.

@ChillMrShade

7 жыл бұрын

pennies are copper and they are worth one cent, kinda just shot a hole in the expensive argument

@IAmKnightsDawn

7 жыл бұрын

No. Just no. They are copper coated.

Wrong kind of foam? House insulation is fire retardant. When you pour the copper it takes so much energy to vaporise the fire resistant foam it's pulling so much thermal energy from the copper it's thickening. You just need to use cheap polystyrene so that it can instantly vapourish when the copper flows into the mould! upvote so the king can see this!!

@johnissa7255

7 жыл бұрын

DJust787 you're right

@yitz957

7 жыл бұрын

DJust787 😊

@graygravity3856

7 жыл бұрын

I have never thought about that. I have been screaming "REMOVE THE FOAM" for the last video.Untill i realized that that would be destroying the mold. That's why i told him to make clay molds.

@AnasHart

7 жыл бұрын

DJust787 Exactly what I was thinking

@aaronmackay6123

7 жыл бұрын

I still think he could preheat the mould in the oven at like 200 f.

I'm classified as a professional foundryman, and even though I have a long list of critiques, I still love this guy! We are all missing the king of random!

Really great video, I enjoyed it immensely! I’m sorry that you didn’t get your full gear ⚙️, but I admire your "Stick-To-It-Ness" you displayed!

all that work making the green sand forms and you only use one half? the copper cooled too quick because you didnt use the top half of the form to insulate the cast. the sand broke away because you didnt use a spru, the liquid copper is heavy so when you pour it in it erodes the sand and can destroy the shape. using both the cope and drag will solve both issues

@HotJam5

7 жыл бұрын

Notgnihtrow I'm glad I'm not the only one who knows what he's doing wrong!

@LargeBanana

7 жыл бұрын

this

@qbiksus1945

7 жыл бұрын

He needs to see this.

@GCGeekArmy

7 жыл бұрын

Notgnihtrow you would think he would have researched this, or at least looked at the thousands of copper casting vids on this platform. Drove me nuts watching the last 2 vids

@pog4129

7 жыл бұрын

Notgnihtrow I've watched other Channels cast copper and explain things that he could have used but watching through this it made me a little mad but either way he tried

I have very little experience with casting, however the man that I helped always used a sealed cast for more dense materials. I doubt that is the proper name. but basically completely cover the gear with sand and have a pour spout going into the foam chamber. I could be wrong but I also believe it may help gold the hear in longer. allowing it to fill the mold better.

@I.Fumblebee.I

7 жыл бұрын

Basically you need to cover it up completely and have a foam "tube" going up which the copper can melt through, once the cast is done you just remove the tube with a saw and then file it down.

I loved his enthusiasm ❤️ we miss you dude

He’s not dead, He is alive in all of our hearts, and you can never truly die if you have videos of you, or you are in people’s memories. And don’t say rest in piece, for him say, experiment with happiness and fun.

@shahariarahmed3849

4 жыл бұрын

true 😭

You should use a closed mould. This would mean that the radioactive shapes cannot float up and ruin the casting. Also, pouring the copper directly onto the sand could damage the mould. Using spruces instead should help with the problem. Hope this can help you succeed!!!

@aubreynan

7 жыл бұрын

Ash Cain it's mold not mould.

@KEL5isGodrules

7 жыл бұрын

HOWYOUBEEN depends on where you live like with colour or favourite

@adamerixon2271

7 жыл бұрын

HOWYOUBEEN grammar nazi

@ashcain2654

7 жыл бұрын

GamingRising Exactly

@StringsOfTheHarp

7 жыл бұрын

Nope, depends on if you are using incorrect english or proper english. Incorrect being American, proper being British. So he is right.

I like how you show the fails and mistakes one can easily make while doing stuff like this. Science hobbies are all trial and error with an enormous learning curve lol. Great channel!

When we thermite weld railroad tracks we use a foundry clay. It has sand already in the clay, but the clay needs to be heated slightly prior to pouring your slag/metal. You don’t want your clay to appear slimy because any additional moisture may explode because of temperature difference.

Argh... Why is seeing your face now is hard?

@trainboi014

4 жыл бұрын

Yes, this saddens me so much, I wish I didn’t have to watch this, but it was too interesting, sad

@airyfishhd

4 жыл бұрын

I remeber being like 7 or 8 and watching his vids and now he is gone it's so heart breaking

@shkyp8752

4 жыл бұрын

Thinking about his videos makes me sad

@BenCos2018

4 жыл бұрын

Same

@cabbagewater3377

4 жыл бұрын

seeing him alive and happy here knowing that hes dead now makes everything feel so bad

I've tried what u need to do is burry the gear and make a funnel in the sand leading to the gear under the sand

@benjamindeverell1123

7 жыл бұрын

yea. gating is important, I assume that's what you mean Blake. open face molds have never impressed me in performance.

@jesseohman7454

7 жыл бұрын

Blake Deering that's what I was thinking

@themidnightclub9514

7 жыл бұрын

Blake Deering it dose not work well use oil based sand

@TheBackwardBros

7 жыл бұрын

up

@muskokamike127

7 жыл бұрын

this is water based.....

The reason why the sand is breaking is not the melting point. The burning mold produces gas. The pressure from the escaping gases has no where else to go. The copper is more dense than the sand. So the Sand gives way. This goes for all who are trying to make molds with foam.

@verigone2677

6 жыл бұрын

yes, he needs a better curing method for his green sand...I am guessing his clay content is kind of low as that sand did not look like the stuff I usually use. I make my molds pretty wet, then let them cure. Rarely do I leave the core of the mold in place either, nor do I open pour more than 30-45g of metal either; and for copper I don't use sand at all...plaster is way better for non-ferrous casting.

@sveinarnelkken9125

6 жыл бұрын

and adding water to the sand makes even more gas with nowhere to go...

@gioelebuonanno

6 жыл бұрын

I think that another important reason (or more important then the escaping gases) is the Idrostatic force. I don't know the specific weight of sand but I'm sure that buoyancy force has a important role.

@mikeblair2594

6 жыл бұрын

it works fine for brass. i use sand casting for all my gun mounts.

@ashlyntyrie234

6 жыл бұрын

smart cookie , btw cookies cant besmart they have no brain , jk

I love how that foundry growls like a BEAST

You’re getting my like for cracking the hollow styrofoam, thank you for the satisfaction:))

could the problem actually be the styrofoam shrinking as it melts constricting on the pillars of sand in the center ruining them

I think the issue comes from the fact that molten copper is around 3.4x denser than molten aluminum. I think the bouency force was enough to separate the bond in the sand. the solution could be placing metal inside the radioactive symbols before packing the sand or by adding somthing inside the mold that would strengthen the bond in the sand. something like the plastic Christmas tree fasteners. Or anything long and with well defined edges.

@vallahdsacretor4839

7 жыл бұрын

For higher heat metals that are not Ferros metals, it's often best to use a denser molding material. I think it requires a higher silicon clay count for sand molding, or as someone said before using an oil base. Another thought would be to bake the clay sand mold to harden it so that it stays rigid in the casting.

@daily8150

7 жыл бұрын

I hope grant sees this

I absolutely LOVE your persistence!

R.I.P brother. You will be missed.😭😢

@prodgalaxyy

4 жыл бұрын

F

@jrdc2858

4 жыл бұрын

F

@kcannon333

4 жыл бұрын

What happened

@redstonerapid5926

3 жыл бұрын

@@kcannon333 Paragliding Crash

@kcannon333

3 жыл бұрын

@@redstonerapid5926 did the grant thompson

I think you should use a two piece mold to make the copper more workable and avoid the sand chunks from breaking👍

Green sand is not solid enough you need oil sands, and an upper box with spru and riser

@cdrxghostx

7 жыл бұрын

Bob Dip exactly what i said, finally someone understands 🤣

@MrPapayaman1000

7 жыл бұрын

Green sand is plenty solid, but an upper box and a riser or two will definitely help. And maybe a flux, too, like borax.

@PirateDest

7 жыл бұрын

It looked like he wasnt packing the pieces that popped out enough... he should be packing it down layer by layer

@RmRoyalflush

7 жыл бұрын

Bob Dip you are right, the sand he uses looks like normal play sand but you need oil sand or what was mostly used is clay-sand it holds the shape better is much more solid and you actually can take out the template

@thomasz2945

7 жыл бұрын

Bob Dip it's just that he didn't pack it right, plus if he used styrofoam it would burn off entirely as well as burn quicker

RIP man hope there’s a KZread in heaven so you can keep educating and doing what you love

@EveryoneElseIsWeirdImNormal

4 жыл бұрын

Heavens not real

@braithenvella2266

4 жыл бұрын

I'm not weird everyone else is weird and I'm normal ok then

two things. Green Sand isn't the right level of clay plus talcom powder may be of great use... also, you need the upper portion of your cast mold to retain both structure and heat. you should do a side by side of your greensand compared to the professional grade stuff. second, please build or buy a smelters crucible arm.

@hiddentidesgaming

7 жыл бұрын

He does for the smaller smelter, that is why he is using the Tongs for now.

why don"t you cover the mold with the top part and make a cavity for copper to go in? this will prevent the sand pieces from popping, and leave only a small part of the mold exposed to air, hence giving copper more time to cool down... That's what I think. btw the last gear is by far your best one :)

@jeffeppenbach

7 жыл бұрын

Yup. Make a sandwich mold, and cover with a steel plate of some sort. As +TheNorskViking mentioned, the sand is floating on the molten copper. Putting a capping plate over the works, and maybe adding some additional weight would help.

@PsyDSha

7 жыл бұрын

Help this genius!

@khizirmalik9036

7 жыл бұрын

masallah your smart

@Garush

7 жыл бұрын

Abderraouf Mehdi Bouhali what he needs to do is mold it in something other than sand, the metal heats up the sand so much that it would just push it around.

@kanaka2010

7 жыл бұрын

I agree. having a two part mold would make a huge difference. it will also keep the centers from popping out

Still rewatching these after all these years, why do the knowledgeable have to die so young.

If I use an open mold for projects like your gear I’ve found using a mixture of sand / plaster of Paris adjacent to projects to work wonderfully.

What about popping the mould into the oven for a few mins? The heat will melt away the styrofoam and it will dry out the sand as well...

@thelordchar1406

7 жыл бұрын

Nitrous Oxide The sand cools down the copper too quickly, heating the sand lowers the Temperature difference between the copper and the sand.

@MagicSteve46

7 жыл бұрын

yea i was thinking he could preheat the mould with a propane torch maybe?

@namestas1591

7 жыл бұрын

MagicSteve46 The problem with the torch is that if he's not careful it could ruin the mold. Even heating the mold up to 450 in the oven would solve a lot of his problems

@Rentaro_kun

7 жыл бұрын

The sand needs to be wet not dry

@namestas1591

7 жыл бұрын

irfan2507 Wrong

I saw someone doing casting with some alloy ( probably brass ) in red sand and it included a hole through brass was poured in as well as it was enclosed except the hole and at last the excess part of the metal was cut if excess metal was poured and the casting turned out to be perfect but I am not too sure it will work here since components are different but if wanna try be King of Random Awesomeness. - A Student who likes experiments

@earthbjornnahkaimurrao9542

7 жыл бұрын

not sure why he didn't do that here, he has done it in previous castings with aluminum. It helps both problems, better support for the sand to hold its shape and better insulated so the metal doesn't cool as fast.

@stjepanl6859

7 жыл бұрын

this, by leaving the mold open the sand can pop out when the mold is closed it cannot pop out simple casting magic

@CharmanderFanCharFan

7 жыл бұрын

Tsubasa Ottori i know who the person. PressTube

@abhishekbiswas8336

7 жыл бұрын

@CharmanderFan20 CharFan20 I actually saw it before my eyes. It was done by a few villagers when i went for a vacation.

RIP...... You touched our hearts, you helped our minds and you will live on forever !!!

i had a laughing fit at 3:30 imagining will smith holding the molten cooper and saying "oo that's hot"

Sand is fine if it is constrained by the edges of the mould, but for any internal structure points with no edge reinforcement, the buoyant force of the copper is going to cause the less dense sand to float. It's no surprise this didn't work when you think about the science behind the materials being used. A closed mould may work better as it would give the internal sand structures two points of constraint.

@Anthaghoull

6 жыл бұрын

actually, temporary molds are fine, but they are not just sand... they are a combination of more stuff, and it usually gets black due to some of the elements... like, a special clay and some other stuff... I don't use temporary molds very often,,, but in homemade projects I make them researching what I am going to cast

@bigblackballs9191

5 жыл бұрын

CSGuitars, I was just about to comment that

@PeacefulCountryLife

5 жыл бұрын

Guys, it's about views, not about melting copper.

@fangraverwolf5154

5 жыл бұрын

Oil based sand works really well for molds like this I've watched PressTube for a while and that's what he uses to make molds like this

@JustinGray70

5 жыл бұрын

CSGuitars I will bet "a dime to a donut" the difficulty is the low density of copper and the fact alloy he calls copper most likely contains nickle and other elements.

Grand, its easy to fix it, it isnt the coppor you need to add a few more grams of clay to the mix from the sand than it will be something harder than it will work ( LIKE THAT HE SEES IT )

@tanishqjha8902

7 жыл бұрын

Drayzz his name is grant

@archaologist5207

7 жыл бұрын

Drayzz u spelled copper wrong. U spell copper like that not like copper.

@oranbyrne6459

7 жыл бұрын

either add more clay or poke metal skewers through each of the bits of sand that were falling off so it keeps in place. Like to let Grant know

@adrianitsyaboi1080

7 жыл бұрын

Drayzz I'm

@TheSqoou

7 жыл бұрын

"LIKE THAT HE SEES IT" Are you patting yourself on the back for making a KZread comment ? Even if that helps, you're pretentious...

Only watched this once but feels like I've watched it a million times.

4:08 Omg how you said "rippin' hot!"

Use casting sand then pull out the gear, then heat the mold before pouring. Top is going to be "domed" due to surface tension. Make a 2 part mold with vents to make a perfect cast.

@m4xwellmurd3r

6 жыл бұрын

I was gonna mention he should try to make a fully enclosed mold with vents and a center post to pour into.

@oscarrasmussen7154

6 жыл бұрын

Ur so smart

@stylesoftware

6 жыл бұрын

Yep school metal work at age 13. A two part mold will hold the inner parts better. Make the first mold as you did, add an entry object such as a pipe, and then box it up for the top. Remove the entry object, pour down the hole.

@billkeithchannel

6 жыл бұрын

Yep. That is how they do it at Urick Foundry in Erie PA. They mold stuff for Rigid Tools.

@ramirogutierrez4044

6 жыл бұрын

Hi

Try making the greensand with fireclay instead of normal clay it's what worked for me.

@gangaskan2255

7 жыл бұрын

or a 2 part mold would work much better

@thisislore1328

7 жыл бұрын

It is unnecessary to do that if you use fireclay though. and a 2 part mold can sometimes make it more difficult.

@Quick_in_and_out

7 жыл бұрын

or a cement mixture which would allow for multiple casting of the same mold

@DrakeFaust

7 жыл бұрын

The 2-part mold also allows for greater fine detail and edge detail, something Grant is always complaining about with his casts. He's also experienced enough that a 2-part should prove no issue for him.

@dylanzrim1011

7 жыл бұрын

hes using one half of a 2 part mould

We all miss you, you're always the KING OF RANDOM

Try melting the crucible. I don't know if it's even possible. But try it once. Thank you so much for the videos. Love them.

@exilley2134

5 жыл бұрын

It's not impossible, but it would be dangerous and tedious. Crucibles were built to withstand the extreme heat and pressure you get from molten metals and minerals, some of those often found in magma and lava.

Hey Grant, try making the water slightly hotter, and then put it in the oven or something to heat up the mold a little bit. Then it would take less heat from the copper, so the copper could flow more easily. Also, try making a channel away from the main gear for the copper to flow down, then it might not push the sand over as easily.

@RmRoyalflush

7 жыл бұрын

Ytrbpt Hsbom his sand is NOT for casting, a channel would just break his mold, he needs to get proper sand or rather clay,

well, here' s our proof that grant is also a human.

@salvationship

7 жыл бұрын

his programming includes a believable amount of "human error" protocols in case of disbelief.

@danbee6407

7 жыл бұрын

Lmfao

I was a molder when I was young. We made sand or ceramic powder mixed with a resin into a nonstick mold. The resin had a catalist to make it harden. When the resin hardens, it only took minutes then I would separate the mold from the sand or ceramic mixture. After separation you need to heat your mold with a torch to dry it completely out. Your resin was alcohol based so it would burn and dry out faster. After this I would pour the molten brass or other metals.

Hey Grant! As you noticed yourself during the casting of the last gear, you commented on the crispy sand. What if, you put the mold with the styrofoam gear some place hot and let it become a bit crispy. And in that way, make the sand hold together more easily?

OK. where to start. You can totally do this - its easy with Bronze which is 1200C to pour. Copper is similar. If you're not going to cope and drag it (which will work better) then lessons learned are: - pour 1 - if you apply enough heat to melt the foam then you'll also dry out the sand - and dry sand is loose and crumbly. (The Bentonite component is acting as the glue). so don't do it in two passes. do it just once. - pour 3 - best chance of success but the islands failed while the supported sand (teeth) did not. (your sand was low on water and was visbly sandy. Do eth compress in your hand and split to see if its got the right water consistency). If you had a cope and drag (two part mold) then the islands would have been supported and stayed where they were. (supported top and bottom you see). So: 1. if you're going to just open pour then you need to remove the foam. It serves no purpose in your poiur and only gets in the way. It should come out easy (or paint it gloss so you can remove it and sand won't stick. So doesn't have to be foam). 2. Then to support the islands you'll need to put a dowel or similar in the middle of each island when tamping so they have support and won't move. 3. then do what you did in ppour 3. BUT better would be: 1. make a cope and drag, Tamp the foam (painted gloss) piece into the drag, 2. flip it over and dust the surface with talc, put the cope on and tamp that with a rod beside the foam to eventually be removed and for the copper to go in. 3. remove the rod, separate the cope and drag, scoop out the metal entry point so incoing metal wil get into the foam section, 4. remove the foam section (hope it was painted gloss so it comes out nice and easy..) 5. reassemble and clamp the two halves together - you already know the copper will float the top if it gets the chance. 6. pour (like your pour 3) within 20 mins or the sand will dry out - this depends obviously on local heat conditions. Success !! One of the othe rmain reasons to use a cope and drag - is the head - that will hold extra metal above the object and provide pressure, this will force the metal into the sharp corners which it might otherwise avoid as it will prefer rounded corners due to its liquid state surface tension. So a head will provide pressure to over come this. (same for Alu). You'll get a much better surface. in fact - if you did paint the foam and removed it, then you will get a shiny surface even in a sand mold.

Disclaimer: I posted this comment on the last video too. Can your furnace get hot enough to melt rock? Then you would have your own lava for an even greater number of possible experiments.

@itsred5441

7 жыл бұрын

Josh Palmer I believe he did melt rocks once. ones from his backyard.

@pierios826

7 жыл бұрын

Josh Palmer would be cool but difficult

@ckm7984

7 жыл бұрын

he made an arc furnace and melted rocks several years ago.

@azraeiazman

7 жыл бұрын

Yes he did. But he use an arc furnace in the video

@luckyluke7997

7 жыл бұрын

Nicholas Rivera like 5 years ago

there is a way to keep the copper insulated during the poor and to increase the strength of the sand...Basically, do what you did before, but then attach a foam pour spout and a couple of vents to the gear foam. Then place the other half of your sand box on and fill with green sand so that just the top of the pour spout and vents are sticking out. This way, you can just pour into the one spout and let the heat vent out the vents, the copper is insulated through the entire pouring process and the sand is no longer cantilevered as it is supported on both the top and bottom. It will also prevent the top side of the gear from bubbling up...anyway, just a thought; it may work better this way.

man that's so cool in need to get on of those

Grant you should add borax yo the copper while melting it, it will make everything easier and get better results

@alicewandrland451

7 жыл бұрын

Roberto Contreras also skimming the slag off the top, helps with pitting.

@SweMisterB

7 жыл бұрын

It's something of a balancing act. Adding flux (borax) to the melt hurts the crucible.

Just because you bought 60 dollars of copper pipe doesn't mean there is 60 dollars worth of copper.......

@parkerbenz

7 жыл бұрын

JB Kaufman yup, and copper pipe is more expensive than copper wire, which is still nowhere near the value of copper. He needs to buy/find scrap copper or buy a few ingots from ebay

@WeAreTwoDoorsDown

7 жыл бұрын

Right... I was thinking the same thing. That's like $10 of copper maybe?

@derchesten

7 жыл бұрын

true, maybe buy it from a recycling plant or something like that... maybe ripping copper from an old house or something... there's cheaper copper out there, but you got to take the time to chase it out

@BCAlpha-gg2vc

7 жыл бұрын

Exactly.

@frostakinggameing9778

7 жыл бұрын

B1CAlpha 001 ait that right

First of all I need to say thanks for your efforts and determination on this experiment the problem you almost ran into everytime might be that the sand you use has lower density than that of copper ,which caused those parts to the surface as if they were floating but I must say I'm not quite sure

Would a Silicon Carbide or Clay Graphite crucible be better for my application? I'm using it for melting copper in a charcoal foundry. I used a silicon carbide for one melt and it worked great, the crucible had an insane amount of glaze on it but I wasn't bothered by it. Though, last night I fired up my foundry again and had the crucible fail and pour molten copper all over the bottom of my foundry.

Try sprinkling baby powder on top of styrofoam gear in place with the sand mold, then take a make-up brush, and lightly coat the surface, then remove the styrofoam gear from the sand mold, then pour the molten copper... (Your Welcome)

@Athithan_2000

7 жыл бұрын

Like so, Grant can see... BTW: my name is pronounced as (Al-ee-tan) or (Ali-tan)

@mihitm

7 жыл бұрын

Athithan Al-Eaten?

@Alexaflohr

7 жыл бұрын

When I did sand castng (with silicon bronze), that worked for me.

@prebenkul

7 жыл бұрын

That makes no sense, so you put baby powder on the Styrofoam that's in the mold, u coat the surface of said gear then you remove the gear? That would do nothing to the sand, only the Styrofoam. Ur basically just removing the gear with the baby powder, leaving just the untouched sand.

@fastballfilms4214

7 жыл бұрын

prebenkul no he said place baby powder after you remove the mold

You should try using an oil-based sand. A little more expensive, but stays in place better. You can also try compacting your green sand more by using more force. Another option is using a different metal than copper with a lower melting point. You should also try adding borax to the copper, which may help, but probably not. Hope the advice helps; keep on trying!

@calinbreedlove4196

7 жыл бұрын

wouldnt the oil burn?

@sparky8455

7 жыл бұрын

Yes; it would absolutely burn, but not very quickly. The only parts that would burn are the areas exposed to the outside air, which can easily be scraped off or put out. I mean, Grant uses wood and is basically pouring metal around 1,600°F onto it. Have you noticed the carbon marks on it?

@calinbreedlove4196

7 жыл бұрын

You do have a point

Aside from the starting angle of the mold when the pouring starts, and your way of pouring, my problem when I worked in a foundry was learning to keep the mold the right temp, and checking for graphite buildup inside..

@joshual.hibbard1744

2 жыл бұрын

They were Iron molds, I forgot to mention.

Lmao the sound of the smealter when it gets lit😂😂😂 sounds like snoring

looks like your sand needs a binder.

@AlumiTube

7 жыл бұрын

Year i use oil sand for my casting videos work great!

It's the foam you're using, it melts slow but also leaves parts of itself behind which can make imperfections in the mold. Also the copper doesn't have time to flow all the way in and completely fill the areas where the foam is making imperfections as you know.

@qxraxx9007

7 жыл бұрын

Universes he isn't using foam

@terrelljames8819

7 жыл бұрын

he did actually say styrofoam in the video tho

@flare380

7 жыл бұрын

he used housing insulation

Can you make the three center pieces more stable by adding "rebar" like woodscrews or something that protrude at least 2-3 times as deep as the gear is wide? This might keep the 3 pieces from breaking of and floating?

Love these videos. Just wanted to say I think the problem was you were pouring it in too fast and that's what the trouble was. Very cool though. Amazing job on these videos

mix in some cement when sand is fresh.. You don't need too much. Sprinkle a bit of water over it so you have a DAMP mix and then let it dry, at least, over night. You can't duplicate how it is done ion factories so don't try. My idea has worked for me a lot when I was a bit younger (70 now) ..try an old-fashioned trick eh.

@kimdeleon8647

5 жыл бұрын

Im thinking the same thing

@say_goodnight7342

5 жыл бұрын

Sometimes, if not most, you older heads have most the common sense and better ideas.

@jukingeo

5 жыл бұрын

I was going to suggest the same thing. Instead of sand, make the mold from cement.

if your going to cast copper in green sand you should use more clay in your mixture and bake it first

@TheOtakuChicago

7 жыл бұрын

the additional clay creates a slightly denser mold and baking it reduces moisture and solidifies the mold

@vividamiani5166

7 жыл бұрын

TheOtakuChicago I agree that what's I said

@TheOtakuChicago

7 жыл бұрын

Sorry I didn't see your comment otherwise I would have +1ed it

@benedictfong8498

7 жыл бұрын

I have 0 experience with metal casting as a whole but I remembered him saying something about the moisture in the sand being too low being a problem? Err...maybe the crucible evaporated the moisture in the green sand, causing the third failure where the sand got dislodged?

@n7titan243

7 жыл бұрын

Grant was thinking in terms of sand castles where wet sand is more solid than dry. But the moisture will evaporate on contact with the molten metal and cause lot's of bubbles. Otaku is saying add more clay and bake it so it becomes more like pottery. solid, dry

I like how persistent you are, you failed so you tried again and again until it worked i also like your attitude you handled failure very well and i feel like i can learn from that.

The E rage on Grants face lol

Hey Grant quick suggestion instead of doing little projects like this you should do a "build" were the daily projects all come together to make a super cool gadget or something. Well just an idea thanks. :)

@mikeyfreeman5776

7 жыл бұрын

Trick Shots 4 Real great idea

At this point why don't you use a better molding technique

@xdrago5602

6 жыл бұрын

Mr. Guy yeah that's what I was thinking

@droidmarqueemarquee6281

6 жыл бұрын

Try clay kitty litter bro Also dont just pour it ontop. Make a green sand lid and pour it in

@HeyHoRangerJooo

6 жыл бұрын

There is no Pouring Basin or sprue for your cast, if you drop it in like that, you will destroy your sand mold only from dropping in your molten metal

@swordphish78

6 жыл бұрын

yep he needs a cope and a drag plus his green sand looks like it does not have enough water in it.

@Madhibiki

6 жыл бұрын

Too much water in the clay. It would explosed.

With all the castings ive seen, i would use a second half mold and make one relief for extra copper to come out and one as a fill so that the copper flows in easily

You mentioned you thought it was cooling too fast, try doubling the distance between the mold snd the outer frame all directions. Pour the copper through metal tubes to mold. A little more clay to bind sand.

You could try and do an enclosed impression mold with a sprue and an open riser. This will definitely keep the "radioactive indentations" as the sand would be supported by the top part of the sand.

Hey Grant you know if you speak nice things to melted copper it will work better.

@iancrozier7630

7 жыл бұрын

The One??? That was savage

@devwaleed4393

7 жыл бұрын

The One??? Oh Yeah You Made My Day

@rexammus

7 жыл бұрын

The One??? Exactly, Like rice

@dkorobchenko1

7 жыл бұрын

yes, the explanation was necessary

@felvincejmdy2866

7 жыл бұрын

Dmitri Korobchenko lmfao

I work at a copper plant and we use green sand molds :)

The way I have done it is to use a two part mold riddling the sand mixed with a bit of oil as a binder and tamping it around the object to be cast. Use a mold release like talc between the two layers. Join the two halves and riddle sand over the first half. Then separate the halves carefully an remove the item to be cast and sprinkle graphite into the mold and carefully create a funnel shape sprue (pour opening) and several small channels to the outside to allow gases to escape. Rejoin the mold halves and clamp. Pour molten metal into the mold thru the sprue hole and let it cool. When cool, separate the mold and clean your casting.