the way the diagonal wheels fit perfectly and rolled smoothly onto the side bricks at 1:36 was so satisfying. such a precise and clever build. and not to mention 8:03. speaks for itself...
0:12 "This cutter is not a LEGO brick" Thank you for that. But anyway, this is an awesome build! I have a similar handheld foam cutter, and one thing people who haven't used one might not know is that the wire often doesn't even touch the foam! Most of the "cutting" action is just the heat from the wire melting the styrene enough to release the air trapped inside of it, causing it to shrink away from the wire. And while that property is what allows it to glide through the foam so easily, it also means that the kerf (the width of the cut) varies considerably depending on how quickly or slowly you move the wire through the material. That makes it very difficult to achieve clean, attractive cuts by hand, which is why this CNC cutter is so cool! But even with this, the dwell time on the last piece (the screw) would vary considerably depending on the proximity to the axis of rotation, so the kerf would be thinner towards the outside and thicker towards the middle, where more heat can build up. Oh, and going back to the point about the wire "cutting" by melting and popping the cells of the foam, I believe the reason the "0" failed to detach completely was because of how the wire traversed the same path as it was entering and exiting the center hole cutout, so the material had already been partially melted and re-hardened, causing it not to recede from the wire as much, and therefore to re-fuse to itself slightly. At least, that's my theory.
I once just bought the wire and built a really big cutter with it. I used a train controller for power. It worked really well after a few improvements were made to it.
I'm a student machinist I just feel weird seeing the words 3-axis in reference to the X,Y, and A axis instead of the usual X,Y, and Z axis. I'm too use to associating the A-axis with 4-axis machines.
It’s wonderful! Hooray for Lego Technic! I have seen Adam Savage cut styrofoam with a wire, but that takes much skill and hand control, and I’ve never seen anyone make a pair of screws before, wow. Beautiful chess piece too (only 31 more to go!)
I think you can make amazing 3D airfoils with this thing. Even large airfoils or flying bodies can be manufactured in small segments and just glued together on a more basic structural frame.
Where a lot of airfoil cutting is just a wird following two stencils(?) Creating rectangular wings this could shape complex shapes like the wings of a Horton aircraft.
I work in manufacturing and sometimes mentally understanding all of the axes can be a little confusing since I'm not one of the machinists. If I'm understanding correctly, this would be a less conventional three axis setup? It seems like normally you would have the X and y axis of the table, and the cutting head would move up and down on the z-axis? But in this case because the work plane can rotate that sort of acts as an artificial z axis?
man, what happened to Lego in the years since i was a kid? i only know of lego as the square bricks, not all these fancy tubes and gears and sliders and mechanical devices. it's come a long way, huh
Incredible, how does the programming work? Do you have to manually input each motion, or do you use some sort of software to automatically translate an image into motion?
Most styrofoam plates are made by pushing a block through a hot wire egg slicer . I remember the factory having slicing frames for different plate thicknesses like 5cm and 10cm.
I wonder if you made the spindel turn a bit fasterfaster and used a shorter wire, sort of like a half oval shape to cut, if it would work as a lathe to make rounded parts
the selection of music is vastly preferable to most... right. now, make one "chuck" open, on a ring. then stick a hot element up the center. internals would be interesting :)
Bro, he basically made a 3D resin printer but instead of resin styrofoam and the printer is out of Lego 11/10 was it cheaper than an actual 3D printer? (cuz I might wanna build one myself…)😅
the way the diagonal wheels fit perfectly and rolled smoothly onto the side bricks at 1:36 was so satisfying. such a precise and clever build.
and not to mention 8:03. speaks for itself...
when video :(
that last thing... was oddly satisfying
I read this comment before I watched the video.. this is true
0:12 "This cutter is not a LEGO brick" Thank you for that.
But anyway, this is an awesome build! I have a similar handheld foam cutter, and one thing people who haven't used one might not know is that the wire often doesn't even touch the foam! Most of the "cutting" action is just the heat from the wire melting the styrene enough to release the air trapped inside of it, causing it to shrink away from the wire. And while that property is what allows it to glide through the foam so easily, it also means that the kerf (the width of the cut) varies considerably depending on how quickly or slowly you move the wire through the material. That makes it very difficult to achieve clean, attractive cuts by hand, which is why this CNC cutter is so cool!
But even with this, the dwell time on the last piece (the screw) would vary considerably depending on the proximity to the axis of rotation, so the kerf would be thinner towards the outside and thicker towards the middle, where more heat can build up. Oh, and going back to the point about the wire "cutting" by melting and popping the cells of the foam, I believe the reason the "0" failed to detach completely was because of how the wire traversed the same path as it was entering and exiting the center hole cutout, so the material had already been partially melted and re-hardened, causing it not to recede from the wire as much, and therefore to re-fuse to itself slightly. At least, that's my theory.
❤p 9:14
P
I swear every time I think to myself “akiyuki hasn’t posted in a while” I see a new video within a few days! And it always feels like such a blessing!
I once just bought the wire and built a really big cutter with it. I used a train controller for power. It worked really well after a few improvements were made to it.
whenever akiyuki posts it's a good day!
awesome build!
Amazing engineering as always, Akiyuki.
すごくすごい！
It’s also a lathe. Set the piece to spin continuously like the last one, and you can use it like a very slow moving lathe
Heated Chrome wire cutter, played with it a lot - that brings me back a nostalgia! absolutely love your builds.
どうやって機械をスムーズに動かし続けましたか?モーターは非常に精密です。レゴのギア間の隙間は問題ですか?
確かに、 2:40 ぐらいの接写のときにLEGOでこんなに高い精度を出せるのかと私も思いました。ギアの構成がどうなってるのか気になります
It looked like it was using a chain belt to operate which helps it to be more accurate but I want to know if he had to write his own program
That is beyond cool. The level of precision on the finished product and what it makes is unreal!!
the percision is really impressive, especially considiering it was made with legos
There are two types of people in this world.
Those who can extrapolate from incomplete data
He became literally a tech gadget engineer. His hobby became his profession.
few years ago i was the cnc operator at an EPS factory. this thing is better quality than what they had me using..
I'm a student machinist I just feel weird seeing the words 3-axis in reference to the X,Y, and A axis instead of the usual X,Y, and Z axis. I'm too use to associating the A-axis with 4-axis machines.
I guess you were cutting man sized blocks like my dad used to .
この世は理系の皆様によって支えられてるんだなぁと再認識した動画
数字と計算が心地いいのがakiyukiならでは
This would be perfect for lost foam casting
You should make this open souced! I bet cosplayers would love having a fairly cheap way to make precise foam pieces for their armor and props
Also a big version (lots of bricks) to cut standard factory blocks into life size human sculptures .
its a lego styrofoam CNC, my mind is blown
This is a really cheap way to have a CNC lathe for molten cast negatives. Or just mold casts in general. Has to be cheaper than 3d printing as well.
It’s wonderful! Hooray for Lego Technic! I have seen Adam Savage cut styrofoam with a wire, but that takes much skill and hand control, and I’ve never seen anyone make a pair of screws before, wow. Beautiful chess piece too (only 31 more to go!)
It's such a shame Lego has discontinued mindstorms
They did? Wasn't there the robot inventor something?
I could watch hours of 3-axis stryrofoam sculpting. It was beautiful.
I think you can make amazing 3D airfoils with this thing. Even large airfoils or flying bodies can be manufactured in small segments and just glued together on a more basic structural frame.
Brilliant. the airfoil idea is genius
Styrofoam wire cutting is used a lot in building models. With CAD lots of things could be done.
Where a lot of airfoil cutting is just a wird following two stencils(?) Creating rectangular wings this could shape complex shapes like the wings of a Horton aircraft.
全て計算の上で成り立ってるのは解るが自分の脳がこれを出来るとは到底思えん
科学者ってほんと凄いよね
２軸までは絵（平面図）を書いた通りに動かせばいいのでわかりやすいですが、多軸の機械をプログラミングするのは格別難しいですね。
I work in manufacturing and sometimes mentally understanding all of the axes can be a little confusing since I'm not one of the machinists. If I'm understanding correctly, this would be a less conventional three axis setup? It seems like normally you would have the X and y axis of the table, and the cutting head would move up and down on the z-axis?
But in this case because the work plane can rotate that sort of acts as an artificial z axis?
man, what happened to Lego in the years since i was a kid? i only know of lego as the square bricks, not all these fancy tubes and gears and sliders and mechanical devices. it's come a long way, huh
It depends. A lot of the parts used in this (the gears, flywheels, and axles) have been around since the 1980s.
Incredible, how does the programming work? Do you have to manually input each motion, or do you use some sort of software to automatically translate an image into motion?
Akiyuki is KING!
That is the craziest thing I have seen done with Lego robotics yet
I just watched a dude make precise linear motion out of Lego
impressive crane base seems really well built and sooo good
Awesome Project! The thought of the sound of untwisting styrofoam hurts my soul
My best friend was like that; never rub two pieces of styrofoam together around him.
AMAZING BUILD!!!
A foam lathe, Impressive!
So good, really good work
this is really cool! it's like a foam lathe
how did you program the EV3 brick? was the gcode parser written in the EV3 visual programming environment?
Would love to see you mount it upside down on something, so even the big 3rd axis slices fall away without help.
Великолепный лего станок да и работает на все💯%❗. Вы умничка 👍
Oh awesome! What a convergence
0:13 "the cutter is not a lego brick" is very funny to me
I would love to see a combination of the two last settings a round pillar and a spiral. Instead of a square spiral.
Its amazing what people build out of legos but it not werry ofthen people make something that is actually really usefull
Combining hot metal and plastic, surely nothing could go wrong.
Very impressive and precise. Thank you
I can see this being useful for foam aircraft like you could program it to cut specific parts
or for cutting air foils
Our boy here opening up new frontiers of what is possible with lego =0
Great work dude 😁😁
Wow, i cant even imagine how hard wold be to program a slicer for that thing 😨
insane coincidence! i just built something very similar to cut piece for lost foam casting. good job!
It'd be cool if you used this for some lost foam casts!
How do make the CAM/write the .gcode for this?
For me the programming is even more impressive
amazing project
this would be great for the lost wax mould type
Titans of cnc has some good vids on wire edm if yall want to see this same concept cutting steel.
Best way i have seen to cut a block in half
Most styrofoam plates are made by pushing a block through a hot wire egg slicer . I remember the factory having slicing frames for different plate thicknesses like 5cm and 10cm.
This is essentially a CNC machine for Styrofoam made from Lego.
this would be perfect for metal working
would be nice if lego made this into a lego set
you are a Lego Technic Master ! realy !
Very well done! Thank you for sharing!
Very nice work!
Lego cnc Styrofoam cutter? Cool
Who’s going to be the first to make a surgical robot out of lego? It’s only matter of time…
this is so cool
That is extremely clever... well done
You could try adding a small arm to push off the spare styrofoam as it cuts
Thanks for a great video.
I wonder if you made the spindel turn a bit fasterfaster and used a shorter wire, sort of like a half oval shape to cut, if it would work as a lathe to make rounded parts
Emulation of EDM. Cool.
Unexpected, but still cool.
すごい！
Nice. The tricky part is tool path generation.
that's pretty neat!
this guy makes a CNC machine out of lego
The musak was perfect 😂
So you've made... a CNC machine. Impressive.
すげーーー
the selection of music is vastly preferable to most...
right. now, make one "chuck" open, on a ring.
then stick a hot element up the center. internals would be interesting :)
You should try making it rotate faster and use it like a leive
Now make a giant minifig out out of foam!!
Styrofoam 1x2 bricks are too big for this lathe . I had some in the 1970s from a test production run .
手がおキレイですね(*^^*)
Damn this is awesome!
Who needs a 3D printer when you've got this
That is brilliant!
the model like a wood cutter printer but demo version
That is some impressive g code
A fellow Muse Dash enjoyer I see :D
Bro, he basically made a 3D resin printer but instead of resin styrofoam and the printer is out of Lego 11/10 was it cheaper than an actual 3D printer? (cuz I might wanna build one myself…)😅
Next video:
building a fully functional 10 axis cnc machine from lego.
Very cool!
Well, that's fucking neat.
Isn´t that song from Lilith Maria in Muse Dash? (At least thats where I know it from lol)
Wait nevermind, Its maid Maria
What kind of tolerances does this machine keep?
bgmの名前は？
bgm is name
how cool is that? 🤩
Impressive
레고로서 신기할 뿐만 아니라 실용적인 인쇄기로도 쓸 수 있을 것 같네요