This is a great example of solution by iteration. In retrospect I may have been time ahead to do a little math up front, but was afraid it would tell me NOT to do the simple PVC pipe version which I really wanted to try. But this is the reality of engineering. We can't afford to calculate/simulate EVERYTHING so we make tradeoffs, examine a few failure modes and make a prototype to see what happens. I HIGHLY recommend the TED Talk referred to in the video. Incredibly enlightening about kindergarteners beating educated adults in the Marshmallow Challenge. See link below. Note most of the footage from this video was recorded in early 2019 before the Covid-19 pandemic. Hence all the kids running around without masks. Let's keep our fingers crossed we never have to do that again! A huge thanks to my super awesome Patreon supporters who made this video possible. To become one of them visit: www.patreon.com/QuintBUILDs If instead you prefer a one-time donation option, here's a PayPal address you can use: BUILD2LRN@GMAIL.COM Merch: www.quintbuilds.com/shop 2nd Channel with engineering and coaching to help you learn: kzread.info/dron/OEykxFhALobv5CF-wYLnWw.html Quint's Background: kzread.info/dash/bejne/oaV5tZpvpZvLhMY.html The TED Talk Marshmallow Challenge I mentioned: kzread.info/dash/bejne/Y6Rp1aSzfdeoY7Q.html

@nefariousyawn

2 жыл бұрын

That was awesome! Your editing is great, but I have a quick unsolicited note about the audio levels - It was difficult to understand what you were saying over the sounds of things like power tools.

@UyeGaming

2 жыл бұрын

That spaghetti challenge reminded me of of Destination Imagenation (we started doing Odyssy of the Mind then swapped) We used to get challenges like the spaghetti one and where judged on how well we did, and competed vs other shools. They also gave you a long term challenge, usually a engineering, or theatrical problem (maybe a mix of the both). I bet you would make an amazing judge, or coach for one of these events!

@minercraftal

2 жыл бұрын

Was getting bunches of thoughts from your video… First was thinking why you use two springs not like 4 springs, but got the point by the end of the video, the power is already big enough. Second is my experience of playing with my slingshot from my childhood. I noticed that, lunch with the hold make far less distance than lunch with a final pull up, it’s a very big difference when I pull quick until release with no stop, lunch much further than pulled to the same spot, stayed for like 1 second, and then released. Don’t know if you can try it, i can’t explain what is going on, maybe some of the energy turned into heat while waiting on stretching… Third is the stopping system. The spring power is really constant, why not cut a cylinder and a piston rod on your lathe, and using the air pressure inside it to stop the lunching rod… the air pressure build up makes the resistance add up quick, and will stop the rod much better than a spring… will reduce the impact really good, and you might need a air vent for maximum force reduction. Well I’m kinda like a hobbyist than an engineer ( didn’t had any engineering school yet… ) And sorry for my explanation, looks really bad but I’m just bad at it… failed to make it better for years…

Your CNC mill to plasma cutter adapter is genius.

@itbeat7899

2 жыл бұрын

Yes!!!

@steelcannibal

Жыл бұрын

That's a killer idea! You should do a stand alone video on that Quint!

The Dad force is strong with this one! Inspirational and entertaining all in one package. Excellent work!

_Some eggs were harmed in the making of this video_

😂 I couldn't go on without coming here to say that the idea of ​​the plasma cutter milling lathe kill myself! 😂 It is ingenious for how simple it is!

this is a great idea! its fun to watch pro engineers work on school projects like a joe!

Does KZread have a Father of the Year play button? If so you totally just earned it.

@masterimbecile

2 жыл бұрын

Tough competition with Mark Rober.

@jonasnicolaysen8019

2 жыл бұрын

After shooting a ball hitting the son😆

@jckatz

2 жыл бұрын

@@jonasnicolaysen8019 my father told me that means he loves me.

@jonasnicolaysen8019

2 жыл бұрын

@@jckatz I'm sure he did ... :P

@ 6:24 Now that is just pure genius...

10:55 not only am I laughing my ass off -- but that sawzall circle cutting jig...I can't even tell you I beside myself I am. brilliant, brilliant, brilliant, and thank you so much for all this, and specifically sharing that.

The plasma cutter with the mill setup is very clever!

Now make a adult version of this with explosives.

TWO thumbs up (it’s all I have) for your patience and perseverance to create this school project. Anything that helps motivate our youth toward S.T.E.M. careers is fantastic. Kudos to you, Sir.

I did a not-dissimilar project. Big springs to launch a shaft to hit a target. I went with an aluminum tube for the barrel. Mostly because I had one. For the bolt (which would propel the shaft) I bought an aluminium rod of suitable diameter. My choice was based on having a durable contraption. However after a few test shots, I replaced the rod with a hardwood dowel. Seems the aluminium rod had too much mass to accelerate adequately. Long story, short... Total success!

Nice work.

Too bad you weren't my math teacher. I would've loved math, and probably learned to use it in my everyday life. I'm a father a father of 6 now, and trying to fix or build things all the time. As it is now, I wing it, and try to improve on what didn't work. Thanks for making what's complex, simple and enjoyable. Keep up the good work!

before you put the wheel on i was imagining some elaborate wooden ratchet

I just love your videos! Thanks for sharing this with so much passion

8:05 aluminum electrical conduit? Brilliant plasma cutter with the Bridgeport!

Im most impressed by your improvised CNC Plasma cutter.

Awesome videos :D the video showes a really nice increase from simple to complex while also improving the stability and performance. Very well done.

The mass of the piston and spring is large and takes up much of the energy. There's a reason why ancient catapults had levers...

Great CNC Lathe to plasma cutter. I have never seen before.

this. is. so. wholesome.

Cool project!

That is awesome! I was really unhappy that I never got to do a science fair even once in my K-12 schooling. I come from a science-heavy family (there's a 300 ton telescope named after my grandfather) and really wanted to do things like this. Also, your house is about the same color as mine, and we live near each other! Thanks again.

your cnc plasma cutter is awesome. that's what got my attention.

That is really cool. I bet you had a blast at the fair.

Love the scrambler! That is a great idea.

Great job quint. Keep it up.

Great video! Hope you are staying cool out there!

Hey Quint, I just want to say, that I really like your videos. Full of technic but still very easy to understand. I am in the field of food-technology so I have some basic knowledge in the life sciences. Hopefully some day I will also get as crafty as you. Keep up the good work!

Loving your videos bro, keep up the good work

Awesome work, hope this goes viral. :D

Sir, you are an amazing dad!

Great work!

If I were one of those kids, I'd build a contraption so heavy and large that the cannon couldn't launch it

Amazing stuff!!!!

Damn wish I would have thought of that when I had to do my science fair project lmfao I always did the potato clock 🤣🤣🤣🤣 good times 😁

one of the coolest videos so far...you are a great father and mentor. keep the inventions going...Peace DVD:)

WONDERFULL!!!! Great dad award :-D.

This was AMAZING

Great video!

Great Video!!

Awesome video!

Eggeslent eggxample of eggineering

I LOVE the way you explain everything! Even a noob can make something out of this knowledge! Thank you Quint!

Awesome!

you know what. sir! if you were my professor in engineering class. even if I'm an electrical engineer students. i would enjoy listening about basic of civil engineering and general engineering subjects.

Awesome 😎

Good work! Get them trained up young, because no-one does apprenticeships any more. People need to know this stuff. Like the old boy a zillion years ago who told me "You don't need a reconditioned alternator in your car. You need a 50-pence pair of carbon brushes", and then showed me how to change them. If I ever stop learning new things (I'm 63 right now) just nail the friggin lid down :)

Well that's basically how my Action Man (GI Joe if you're in USA) "mortar" worked back in the 1970s.

5:15 Don’t worry, you can always have another child.

That replicator thing really got me for a sec

love ya!

Nice, try putting some chalk on the launcher to see if it looks like smoke :)

Awsome

I still vote you the next Bill Nye you are awesome!! Love your Videos!

@JANDLWOODWORKING

2 жыл бұрын

@@everettstormy I was once told if you cant say something nice dont say anything at all. You should try that.

🔥🔥🔥

never say sorry .. especially for a prototype :) @Quint

If only you could get some compound springs :)

Neat

Quick question if you were doing engineering now which branch would you choose

The same way that a human is shot out of a cannon, with the bang & smoke used for effect

Will you be upgrading your replicator to the latest model? I heard it makes 2 copies instead so that you can have a spare! Or go all out and go with their industrial model that makes 5!

Next year: CATAPULT

On a completely unrelated note, you son got a nice haircut.

The stiffer spring you showed is better, despite having the same "stored energy", as most of the energy gets wasted in accelerating the mechanism. The stiffer spring you show is far lighter, and so, the terminal velocity that the mechanism reaches (for the same amount of stored potential energy) will be higher. (i'm guessing you are aware of this, but simplified for sake of the audience). BTW, Tom Stanton (on YT) has done an interesting series on launching tennis balls with a trebuchet mechanism, whereby he tries to extract the laste millijoule of kinetic energy out of the trebuchet.

@AdityaMehendale

2 жыл бұрын

@@everettstormy Torque?? Pressure?? We are talking about a linear spring here.. not a torsion spring, not a gas-spring. Further, if the terminal velocity of the payload is the same as the terminal velocity of the mechanism, then any energy absorbed in compressing the pillow is irrelevant for the comparison.

Hello!! 👋👋

👍👍👍👍👍

I remember when doing the egg drop My teacher gave me this look like I was being lazy When I handed him mine because it was just a solid block of the densest foam I could find within the parameters that we were allowed and I cut a small hole in between the two foam layers to put the egg. my egg didn’t break but my teacher gave me that look🙄i’m almost 40 years old and it still bugs me to this day I thought I was being clever

Hey mate I've had a question cause you remind me of my dad who loves building things for science haha, what 3D Printer are you using? I really want to buy him one to help him along :).

@QuintBUILDs

2 жыл бұрын

Flashforge creator pro but you can get by with something cheaper like an Ender.

Next year cannon that shoots kidns!

That replicator is pretty nifty. Why don't you make a video on how you modified your 3d printer to do that lol.

I did this at a previous school, but went with a propane powered potato cannon. Here was a demo video I did to test the idea: kzread.info/dash/bejne/eYqBzJd7ia2Xmbw.html&ab_channel=spudafett Schedule 40 3 inch pvc pipe just happens to allow a PERFECT fit with pringles cans. I had my students build their devices within a pringles can base and then we launched them outside on the football field. At least one device did survive... I wish I still had the video of their launches. Most just disintegrated as it left the barrel!

@QuintBUILDs

2 жыл бұрын

Nice work!

My first science fair was my 8th grade. I did mine on Nikola Tesla.

How the heck does the mechanism work? I don't get it?

Anyone else thought he said TikTok instead of TedTalk?

@TheMightyZwom

2 жыл бұрын

No

Did you really just saw a plank with the powercable right under where your saw is???

Is that a Calvin and Hobbes brand replicator? Your videos make more sense now, you must have gotten a hold of a Cerebral Enhance-O-Tron.

What a waste of valuable toilet paper

2:25 $6.99 for a single tiny spring?! Plus the lumber, PVC pipes, etc. Seems like you could have bought a Honda Civic with the cash it took to build your cannon.

@jckatz

2 жыл бұрын

Yeah but a Honda won't bop the son and the head, that is priceless

7 dislike 7 😡 chicken

i think rubber bands would of worked batter

Can I buy the replicator on eBay? I feel it could be useful when combined with my money collection ;)

Ohhhhhhh... you should have explained the two science fair sections at the beginning, cuz I was starting to feel bad about you doing all the work for your kid's project for most of that video...

*William Osman would like to know your location*

If

What an awkward weird nerdy guy....It's cringey watching your videos. You instantly got my like and sub. Keep 'em coming Quint.

:D

Typical scope creep on this project. Now, multiply this by a few tens of thousands of dollars and convert it into an embedded electronic control system. Oh, yeah -- start with a fixed bid that the end customer refuses to acknowledge was insufficient to begin with, and which the broker won't challenge for fear of losing future business from the end customer. Add more electronics and software as needed, all at my expense. Finish just before the drop dead date. Deliver and get nothing extra but a pat on the head. My life.

I wish hair stayed on your head

Awsome