I used to do some lost foam castings. I would use joint compound thinned with water to about like milk. and spray on several coats letting them dry between coats. Then I would pour a base layer of sand into my bucket place my part in and pour plat sand around the part. After that I would tap the bucket with a mallet to pack the sand once it was packed down pour my metal. Worked great. I made tons of parts and no water glass.

joint compound to act at the fine-detail-saver is such an excellent trick

@The_Mimewar

2 жыл бұрын

I never would have thought of it on my own.

@nczioox1116

2 жыл бұрын

Is there a spray on version?

@theofficialvalvychannel5689

2 жыл бұрын

Idk but what is joint compound exactly?😅

@josedavid6400

2 жыл бұрын

@@theofficialvalvychannel5689 I also like to know.

@jacktheaviator4938

Жыл бұрын

I have tried a couple different types, but the powder that you mix with water that contains plaster of Paris is the best. A lot of the pre mixed varieties have polymers in the mix (usually some sort of vinyl) and they don't work as well. I'm not sure if it's the vinyl, or some other ingredient, but the pre mixed stuff had tiny pits and dimples in the surface finish.

"Hey, Seth. You know what happened to my car rims?" "... No?"

@abc1099

3 жыл бұрын

Wheels*

If you do this same model again, I would suggest that you cast it upside down. The gate can be much smaller than the feeder/riser so you could have a much smaller defect on the top of the head.

@1495978707

3 жыл бұрын

In fact this is preferable. You want controlled gradual flow, not sloshing, and this is achieved by constricting the flow before it reaches the model

@operator8014

3 жыл бұрын

Yeah, the lost detail across the top of the head was pretty tragic.

I really appreciate you showing and telling what materials you use for people like me unwilling to bite the bullet on suspend a slurry... thank u, and awesome content

Absolutely amazing how much detail you captured. Even the 3D printed layer lines and the filament Wiggly's on the overhang under the chin. Excellent work. Thanks for sharing.

5:40 You lost a lot of metal off the side of the bucket, there. A small funnel of sand around the entry point would help direct the metal back into the mold.

@hasanelahituhin1150

Жыл бұрын

kzread.info/dash/bejne/iXeiq6yuZpzHhpM.html

Unreal... I've been looking into methods for doing this and this is by far the most effective I've seen yet! Hope it works for jewelry casting

@pbDEMON

3 жыл бұрын

From what I've seen on other youtube videos, most jewelry casters use resin 3d printers and plaster molds for high quality pieces.

4:31 The difference between cans and wheels is that wheeled aluminum has a higher silicon content, which lowers the melting point of the alloy and improves the fluidity of the molten metal.

@robinson-foundry

3 жыл бұрын

That’s right. Big difference between the two. I love “Wheelium”.

@SethKotta

3 жыл бұрын

@@robinson-foundry Oh, wheely?

@nitcat1

3 жыл бұрын

Is there some method to determine if a wheel is aluminum, magnesium or some kind of alloy?

@vaclavmusil6994

3 жыл бұрын

@@nitcat1 Wheels are usually casted.

@operator8014

3 жыл бұрын

@@robinson-foundry Wheeluminum?

Congrats this project is much easier than previus projects

@mattlogue1300

3 жыл бұрын

3d print needed support under chin or massive cooling. That cast is awesome.

@robinson-foundry

3 жыл бұрын

Thanks, yes it is. Something a little different also.

excellent to see ancient "lost wax" method brought to the 3D printer era

@JohnSmith-tj5se

2 жыл бұрын

this shares nothing with lost wax casting, it's not even close to correct

I was into painting Warhammer miniatures around 30 years ago. Watching this gave me an overwhelming urge to paint it. Nice

These have such a "How it's Made" vibe to them, it's great. My guess is you were a fan of that show growing up (as I was) and you took some mental notes and made use of them for your videos. Great videos. : )

Nice to see you have all the correct safety gear and proper tools to safely handle molten metal.

A few years ago, Grant Thompson from TKOR made a video where he did this, but with styrofoam models. I've always juggled around the idea of doing that, but with 3D prints, and it looks like your did it first and perfected the idea with the layer of plaster to get all the intricate details. Excellent work! It looks great!!!!

Hands down this is authoritatively the best tutorial I’ve been able to find on this

I can't believe it even retained the overhang stringy thingies, hahaha Excellent video

Nicely done. I'm impressed. I think this was the simplest approach I've seen....since 3DTopo showed his lost PLA process eight years ago.

You rlly make an before an after in the 3D metal casting method with this. You're my heroe

The best & easiest way to make 3d metal products 👏🏼👍🏼

this is the most effective lost wax casting video I have ever seen.

Thanks for the tip on the concrete sealer and joint compound!!

@maxk4324

2 жыл бұрын

Dry wall sealer I believe. Concrete sealer is an entirely different product, an epoxy or some other 2 part resin I believe, which if used here will produce very bad results and also probably some fumes you don't want to be breathing.

Thanks for sharing, I literally just bought the materials to try this!

@robinson-foundry

3 жыл бұрын

That’s awesome! I hope it works out for you.

@The1Loser1Type

2 жыл бұрын

You should post a video of your first go at it!

@riccardo7352

2 жыл бұрын

did it work?

@pedroperenne

2 жыл бұрын

@@robinson-foundry it is "normal" sand? not special for casting? the sand in the home improvement stores?

@EricksonEtc

2 жыл бұрын

@@pedroperenne The sand is regular sand. It's the sodium silicate that makes the sand harden up, with exposure to CO2. Google 'sodium silicate casting'. It's amazing stuff. SV Seeker has some cool videos using SS. kzread.info/dash/bejne/o4SitcRsqd3fpKg.html

Should take that to the antique road show. Maybe get half a million bucks

Good job. The finished piece has lots of detail. I would like one in cast iron plated with nickel.

Absolutely stunning....that was glorious

Best casting video to date!

At lasttttt a video without burn out oven great job

That’s an awesome technique, great job 👏🏼

Wow... Mind blown. I definitely need to try this method. Keep up the awesome videos, incredibly helpful!!! :)

Incredible detail!

Great job! Amazing quality.

Definitely given me H.R. Giger vibes👌🏾🔥🔥🔥🔥 sick job, love it!!

you asked to tell what we thinking... freaking amazing, good job

This is so awesome, great work, thank you for sharing!

Wow, the detail on the bottom of the chin is very impressive. Very cool!!!

Interesting method. The result is great!

Great to know it works without needing a lengthy burn out to remove the PLA.

wow incredible detail in the result. excellent work

In the foundry I worked at, we used pour basins over top of the sprue so that a constant flow of metal goes into the mold without any air. It also reduces spillage.

Good to see that pie case replaced with something a little more sturdy!

You do some impressive work and your techniques are great. Just one thing your wearing lace up shoes without shields surprises me with all the safety you practice. Keep up the good work and making your videos.

As if I didn't already have enough of an addiction printing in PLA... :P This was super awesome man, thanks for sharing!!!

@robinson-foundry

3 жыл бұрын

You’re welcome, it’s a fun hobby! Thanks!

Really digging the mayan/Aztec prints

Looks great 👍

Excellent. Turned out great.

Great process

The best method I've seen.

found out about your channel today and i cant stop watching! amazing work

Very detailed and interesting now im going to try this, thanks for the video

Using the angle iron to protect from vent splatter is genius. I have done something similar, but I'll be damned, the angle iron is easy and does a GREAT job. Thanks a bunch!

Great piece. Very fun pours.

Very nice technique, thanks for sharing

That looks awesome!

That's pretty cool is a Geiger statue. He always did make some good drawings.

Nice. And using Vase mode in the slicer, good idea!!

Pretty sweet looking bong 👌🏼

A great informative tutorial. Well done - as usual.

@robinson-foundry

3 жыл бұрын

Thank you very much!

Quite educational!

This is badass!

That came out grate nice piece man

Beautiful!!

8:18 I like houw the process captures the detail of the drooping filament in the overhanging chin.

Looking great

Excellent job. Who would have thought that you don’t need to melt out the PLA first.

Will and Skill.

A fine addition to your collection

@robinson-foundry

3 жыл бұрын

Thanks!

Amazing stuff!

Amazing Craftsmanship 👍🏻👍👍🏽

Thought the PLA would blow up .... but didn't .... Awesome!!! Thank You

@robinson-foundry

3 жыл бұрын

As long as it’s vented sufficiently it works!

👍🏻 awesome 🤩

I cant wait to some day try something like this

Well done thank you

Whatan extreme intresting way to cast. I have to give this a try myself

Amazing job!!

Fantastic results well done. Must try this myself. Cheers J

Nicely done!

Great work! I like this molding method, I will have to try it. One note: don't load your crucible cold like that. The aluminum expands as it heats and it's a great way to crack your crucible. Throw a little in the bottom and let the rest preheat on the furnace vent, add once you get a molten heel on the bottom.

Robinson baby... do some greek scuptures alright. All the best

very nice job

Mechanical engineer from forge foundry background yes you can reuse most metal sand etc in the industry we reuse it after filtering and grinding again to ensure no big parts and magnets to remove from ferrous metals etc good luck if it feels and looks good enough to use it probably is not hard 🤞✌️

Thanks for sharing

Very nice !

For anyone who cares. "MOST" Cast aluminum is a high silicon based aluminum alloy, which lower the melting point and helps make it flow much easier. This is what makes it ideal for casting. You can buy silicon from eBay, crush it, and add to your molten aluminum to make your own allow that flows easy

Perfect!

Amazing!!

Man good job this thing lools great. Really getting into this stuff. Wanting to make a wood and epoxy bed with some cast skulls on either post.

now this is the wei!!!

Thanks!

Super cool! I'd love to see you do this with a resin printer which would get you even better detail. There are a lot of resins out there specifically for doing lost wax style casting

@elrojogrande744

2 жыл бұрын

theres also wax filament for fdm 3d printers. never used it myself because i heard its a PITA to work with though.

Excellent, thank you for sharing. time for me to buy a foundry and make some cool stuff.

@robinson-foundry

3 жыл бұрын

Thanks! You definitely should. It’s lots of fun.

U made that look easy nice 👍 👍👍

Awesome

LOL even the near-spaghettified print part under the chin was captured perfectly!

Very impressive. Another version of this is being used with powdered steels. The print gets placed in a steel tube (cannister). The outside gets filled with 1085 and the inside with 15n20 or 1085 with 5% nickel. Its heated to forging temperature and compressed in a hydraulic press. The pla is organic and burns off as carbon. Some very detailed mosaic patterns for knife blades etc are being created. Its very new and likely the next big thing in mosaic pattern welded steel (damascus). Thought it might interest you.

stunning man stunning Author Venkat 😎

nice tut

MUY BUENO E INSTRUCTIVO SALUDOS DESDE ARGENTINA.

6:12 **pat pat pat** "Wake up Sweetie"

I'm impressed that burning out the PLA core before pouring wasn't required. Do you think that any other "support" filaments like the water soluble PVA would burn out even cleaner? Or was PLA just perfectly suited to the application?