Testing New Printing Techniques to Build a Mechanical Centipede

Рет қаралды 81,762

Ай бұрын

Here's the X1-Carbon 3D Printer as featured in this video! shareasale.com/r.cfm?b=235382...
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Makers featured (check them out!):
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Пікірлер: 77

@Nishye501 Ай бұрын

This is exactly what I should be watching at 2 am

@arnabmusouwir9018 Ай бұрын

Another thing that you might have overlooked is that the printing orientation of the gear shafts. The shaft printed in that orientation are generally weaker due to the layers. And it can be seen as the main gear broke off several times. I hope this gets fixed in V4

@towlnator Ай бұрын

The exclude object part that BambuLab uses is also available in octoprint and klipper. It relies on the slicer "segmenting" the GCode with object start and end markers and just skipping those during GCode execution.

@Lukas-qy2on 8 күн бұрын

When i ignored this video in my feed countless times i had no idea this was a will cogley video, definitely made me rethink and click :)

@thomashiemstra Ай бұрын

I never thought about printing a gearbox like that, nice work!

@Dave_the_Dave Ай бұрын

You can use fasteners for hinges two ways: use shoulder screws, which are only threaded partially at one end, or run the screws through a sleeve/bushing. The bolted pivots on a full suspension mountain bike are an obvious example.

@bencressman6110 Ай бұрын

Damn, I watched that whole thing expecting to see the functioning centipede at the end! I was so surprised when it ended lol

@darkfrei2 21 күн бұрын

The bad way to tell the printer recommendation.

@tyleradams3490 Ай бұрын

Your videos are fantastic! You are the reason I own an A1 mini. It was your last video, April 12th, that finally propelled me to get into 3d printing and try building your eye mechanism. And I loved using the mini so much I ended up also buying the A1 with AMS lite right when it came back in stock. Regrettable timing as I would have used your link!!!

@WooHooSum Ай бұрын

I just wanna say how much you've inspired me to get working on robotics. If possible I'd love if you did some tutorials on how you think about CAD too. Keep up the awesome work man!

@Ernzt8 Ай бұрын

Great print-in-place experiments. Don't give up!

@notsonominal Ай бұрын

oh my, stumbled onto this in my feed today. did not dissapoint - new sub!

@bbtbenandjordan Ай бұрын

Man all of your projects and videos are gold

@SeanLumly Ай бұрын

If the gcode is static (which it is), then you can store a special part code marking the start of each part at each layer. When running through the gcode command array during a print, and you come across one of these codes, you can skip it and move to the next. I don't know if they do this, but it would work at print-time. That the print job is accompanied by a picture, it implies that the printer receives more information than the g-code alone. I have a Bambu Labs printer. It's not that they're hyper advanced, just that they've capitalized on low-hanging-fruit for quality of life software features that could be a part of ANY printer (even the ultra-budget ones). They have also made some good design decisions here and there (eg. no-tool hotend swaps).

@williamstaples5994 Ай бұрын

You are correct. Its add a Header and Footer to each section it does for a object on the bed. It looks at each object at slicing. So if you had it as 1 file not split up into parts or objects, it doesn't work. Then the firmware is just picking it up based on Gcode Comments Here is an example: ; stop printing object EC_R1_2a_r.stl id:4764331004008807296 copy 0 ; printing object EC_R1_2a_r.stl id:453636 copy 0

@jexom Ай бұрын

Any printer running Klipper firmware can do part skipping. Not sure if marlin has this these days

@renxula Ай бұрын

Yeah, the slicer adds comments mentioning which object it's going to print now. However, even without those (non-standardized) comments, the gcode could be analyzed to identify separate objects. The program could generate a map of where plastic gets extruded, and identify "islands" that aren't connected to each other. The thumbnail picture of the print job is in the gcode file! It's a small picture file that's been Base64-encoded into text and put into a comment.

@arbitrary_username Ай бұрын

@@jexomyess. Also Octoprint had a plug-in for years

@xenontesla122 Ай бұрын

@@jexom Marlin can do it when combined with octoprint

@JustGoAndFly Ай бұрын

Dang Bambu sends X1's to influencers like candy i better get to uploading

@robpalmer518 Ай бұрын

welcome back Will. great project

@AndyIngram-Tedd Ай бұрын

“Take that maths!” 😂I love it. These videos always blow my mind. Well done Will ❤

@jamespray Ай бұрын

Very cool exploration -- definitely got my "gears turning", haha! I have made some very durable designs with cams and linkages in PLA by using finish nail shafts as low-cost pins, sandwiched in clamshell assemblies to support both ends. Where unsupported printed hinge pins are needed, biasing the contact patches toward the bases helps longevity by reducing leverage on them. Thin raised "rub rings" to reduce the contact patches between sliding and spinning parts also help -- it looks like you did this, but I prefer to bias mine toward the outer diameter for more stability and reduced contact force. I do have to say, this design seems like a big ask of any motor since there's so much rotating friction (it would be a lot even with ball bearings), and I wonder if you'll end up needing supplemental power sprinkled along the chain. Looking forward to the next version!

@jamespray Ай бұрын

I should also note that one of the best additions I ever made to my vitamin selection was a 100-pack of cheap 6x3x2.5 microbearings. They're perfect for compact, low-RPM applications like this even when they're one step removed from actual garbage on the quality scale. Designing without them for an assembly like a centipede with a massive number of rotating parts makes sense from a DFM/DFA standpoint, in some ways, but when you're already resorting to nested insert-during-printing assemblies to combat friction and robustness issues, I wonder if resorting to embedded ball bearings might be the better part of valor this time :P

@NabilTouchie Ай бұрын

really interesting approach! as always, and indeed the bambu printers are impressive as well

@harithsami843 21 күн бұрын

Very impressive work, hoping V4 works right out of the gate. Also the X1 Carbon is really good.

@Heisenberg2097 Ай бұрын

Cool projects and dedication.

@muchcat1113 Ай бұрын

Finally, my childhood dream of witnessing the arise of real life Zoids is ever closer

@nicksweeting1598 Ай бұрын

Try PLA Tough, all the strength of PLA with none of the brittleness issues. I use it exclusively for everything and stopped bothering with ASA/PETG/etc.

@NickBR57 Ай бұрын

Fantastic work. Great ecoerimental thinking and quite fascinating.

@FirstLast-wr9mh Ай бұрын

Fantastic as always

@machmar 22 күн бұрын

Love the face cam!

@markmarketing7365 Ай бұрын

Welcome cogs is a risky opener but I think you could get away with it.

@NeoIsrafil Ай бұрын

Hmm... are you designing in proper tolerances into your parts? Getting into the habit of throwing parameters in for tolerance and then being able to adjust it at the end parametrically is, IMO, a good practice to have for minimizing parts not fitting or working as the stimulation did.

@illbeback2YT Ай бұрын

Very good video, testing ideas and reflecting on the results. So I can learn. New subsciber.

@conorstewart2214 Ай бұрын

I’ve never seen inserting parts during a print taken to this extreme, it definitely seems like it could be useful in some situations. Shafts really don’t do well printed vertically though, most 3D printing materials are weak in the Z direction due to layer adhesion. A technique I have seen to strengthen prints is to insert a bolt through the middle of the shaft and a nut at the other end, this adds reinforcement, the same could be done with any metal pin or bolt really.

@jbrownson Ай бұрын

neat ideas, thanks for the video

@SeanTaffert Ай бұрын

You can solvent weld ASA and ABS with acetone if that will help stiffen your assembly.

@footspring94 20 күн бұрын

great vid. also was any lubrication used for the gears? feel like that can be underrated in mechanical prints.

@herbertattema9890 Ай бұрын

I also struggled with proper hinges. I came up with using shoulder bolts with heated inserts. They come in a range from sizes and are super strong. Maybe right for this application

@zenginellc 10 күн бұрын

The neck of the gears are breaking along the layers too. Another reason for there to be a shaft going through the gears instead of printing them all vertically.

@Wm200 Ай бұрын

Very cool video!

@mikeydk Ай бұрын

Have you tried printing the parts which require a lot of support, from petg? If you set pla as interface layer, you can set the distance between support and model to zero to get a close to perfect overhang, and the pla snaps right off, allowing the support to be removed very easily.

@beaconofwierd1883 Ай бұрын

Maybe if you skip the whole rotating shaft and design the legs to operate based on pulling a string you could make the whole leg mechanism a compliant mechanism with no assembly at all. This would also allow you to make the centepede a lot smaller. Ypu could probably get a ”wave pattern” in the legs by having a bit of slack in the string between each leg module, but might be difficult yo achieve, especially if you want the wave to contain multiple wavelengths along it’s body. Might be able to design some compliant mechanism that does multiple oscillations from a single pull, but that’s probably difficult. Would be really cool though to have a basically life sized remote controlled centepede :p

@davetreadwell 19 күн бұрын

Binder pins also known as Chicago Screws :)

@djsnackcakes2795 Ай бұрын

You mentioned friction issues multiple times, have you attempted 3d printed bearings with graphite powder as a lubricant? It does introduce a little slop but putting two in a gear on top and bottom can mitigate that for the most part This is a cool project and I can't wait to see where it goes

@tonycollum9910 25 күн бұрын

can i get a link to that chao print that was adorable and dope printing man

@altamiradorable 9 күн бұрын

0:24 prehensile means that it can grab something ! Not bend in any direction.

@user-pm9mz6dw3i 21 күн бұрын

hmm maybe I should totally buy another X1C..or is there something else coming?

@renxula Ай бұрын

Interesting experiments! I've been thinking of playing more with mid-print inserted parts too, but it seems to be quite problematic. Prints detaching from the build plate, especially. I'm beginning to think it's wiser to just design the parts to be glued together afterwards!

@rickseiden1 23 күн бұрын

When you go from V1 to V2, do you start over, or try to adopt? I always find that even though I'm using parametric design I end up with a small change causing huge issues down the timeline and it's either easier to start over or just do the non-parametric thing and update the design at the end (instead of changing the diameter from 3mm to 4mm, I start a new sketch and do a new extrusion to add the extra mm).

@danielesantoru2591 Ай бұрын

Hey there! I found this video very inspiring, the multi stage printing sound like a very interesting idea. I have been designing mechanical parts for a while but never really got in depth with gearing systems, and fusion360 doesn't seem like the ideal program to explore them. Which program are you using to design these components or suggest using? Thank you for your help!

@giuseppebonatici7169 Ай бұрын

cool project. It broke a fundamental rule that made everything more tortuous: you over optimized cool hinges with overengineered joints. which are fun, but you could have done that after you tested the most likely failure point: the gearbox. you wasted too much brain in the cool factor, which made you negligent to critical parts. but again, really amazing project. and the over engineered parts are kind of fun, and I am quite sure that they will sell (in youtube) better than heartless efficient engineering. I will be waiting a part 2.

@AustinMCraigDoesNeatStuff Ай бұрын

Would be interesting to do similar with 3D printed compliant mechanisms. Reduce part count.

@darkfrei2 21 күн бұрын

2:20 - what is there with your gears?

@oplavevski Ай бұрын

Excuse my ignorance, but doesnt the friction of the plastic of the gear in part cause to the breaking? Would a simple small bearing not address this issue?

@wimvanertvelde 23 күн бұрын

Take a 0.2mm nozzle for such small gears

@jorjorco 19 күн бұрын

comparte el stl por favor

@Etrehumain123 19 күн бұрын

2:32 please please what is this software. Im designing painfully piano mecanisms on Solidworks and I cannot find a simple software that permits me to try simple mecanisms on a very basic level. Im obliged to get super high in details to just see how it works and it's a pain to change numbers

@handance7333 Ай бұрын

Wow I need to get that printer!

@mp-xt2rg 15 күн бұрын

Pla is stronger than asa. Pla is one of the strongest filaments available. Only being best by polycarbonate. It is super brittle and lacks any tolerance to heat though.

@scoffpickle9655 Ай бұрын

The centipede could have 2 motors for each leg for steering control, and if the design had some PID adjusting capabilities, it could walk along and turn in uneven terrain.

@tulpjeeen Ай бұрын

Two flexible shafts could also work. Also balances out the moments

@mvadu Ай бұрын

Is is only me that felt audio was really f'd up!? You probably need a multi material printer with a multiple nozzle like Prusa Xl to get the results than AM's which is more of multi color.