Will 3D printed MTB parts break catastrophically? Let's find out!

Will 3D printed MTB parts break catastrophically? Let's find out!

3D Printers are awesome for prototyping, fitment, and small plastic items. Certain printers can even print stronger parts out of metal, but not mine. Today we’re going to print plastic bike parts, install them on a mountain bike, and test to see how strong they are.

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50 Comments

  1. No home for free people on January 15, 2023 at 2:33 am

    If you are going to design bike parts, you might want to read up on design considerations for FDM.

  2. Resilience on January 15, 2023 at 2:33 am

    3D printed dork disc would be appropriate 😅
    Maybe fenders?
    This was hilarious, thanks.

  3. Richthofen80 on January 15, 2023 at 2:33 am

    You know something is sketchy if even Seth is breaking out the safety gear / full face helmet

  4. 슬옹Engunto on January 15, 2023 at 2:35 am

    I feel like he’s putting too much torque on some of these. They would never be permanent solutions but could get you to the bike shop to get a real replacement. Also metal 3D printing might work great.

  5. DutchFPV on January 15, 2023 at 2:37 am

    you gotta try using tpu!

  6. Franek Kapusta on January 15, 2023 at 2:40 am

    Almost as good as cheap carbon parts. Sorry. No. not really XD

  7. Loren M on January 15, 2023 at 2:41 am

    You should do a follow up with some designs from someone with more experience and industrial equipment.

    There’s better choices than soda bottle for material choice

  8. ابو--عبودي on January 15, 2023 at 2:41 am

    next vedio : bike drift

  9. Aiden Stefanson on January 15, 2023 at 2:42 am

    I made a friction shifter that didn’t snap, saving myself 6 whole dollars over the good shimano friction shifter.

  10. Me on January 15, 2023 at 2:44 am

    A Bambu Lab x1 printer would be a great addition to BermPeak, Crazy fast and enclosure would allow you to use much stronger filaments. @bermpeakexpress

  11. Quill Maurer on January 15, 2023 at 2:44 am

    My commuter bike is covered with 3D printed parts. Light mounts, fender brackets, lock carrier, chain guard, bar end plugs. Nothing structural, high-stress, or safety-critical, but certainly very useful. Same is true of my car (even some engine parts such as the air intake) and a few parts on my motorcycle. 3D printing is nowhere near as strong as metal, but it often surprises me how much it can hold up to.

  12. Old_ Paladin on January 15, 2023 at 2:47 am

    Print with abs

  13. xanderscat on January 15, 2023 at 2:47 am

    seatpost for electric scooter from plastic

  14. Joe Shmoe on January 15, 2023 at 2:48 am

    If you are a million miles from nowhere with a broken down bike and a solar powered 3D printer, with care and caution you would get back home.

  15. Extreme Fireballz on January 15, 2023 at 2:51 am

    I hate being nit picky and annoying but when you said the filament name, you said it as “pet-G”, when it’s actually supposed to be pronounced as “P-E-T-G” (capitalized to say that you say the letter names)

  16. keean spears on January 15, 2023 at 2:52 am

    Maybe a nylon or carbon filament would provide a bit more strength

  17. Roy Sigurd Karlsbakk on January 15, 2023 at 2:53 am

    LOL! I beleive you could make good 3d printed parts, though, but use lots of walls and high infill, preferably gyroid, since it’s strong, and probably another material, like nylon with carbonfibre (PA-FC). I doubt you can print that well on an open Prusa, but perhaps if you make (or buy) an enclosure for it, it should work.

  18. realflow100 on January 15, 2023 at 2:54 am

    Try different 3D printed material filaments!
    I want to see a follow up with tougher filaments

  19. LiftedorLowered on January 15, 2023 at 2:55 am

    8:48 you can tell he is twisting the handle bars to break it lol

  20. Travis Wilson on January 15, 2023 at 2:55 am

    Dude, this shit was awesome, i was literally Laughing Out Loud!

  21. James Mceraghan on January 15, 2023 at 2:55 am

    prby make great fenders

  22. Carter White on January 15, 2023 at 2:56 am

    You should get some carbon fiber nylon and reprint these parts

  23. ttvbtw ttvbtw on January 15, 2023 at 2:56 am

    woo….

  24. Yardwork with John on January 15, 2023 at 2:59 am

    Funny thing about this video. I would NEVER EVER do this on a plastic bike. But It’s late December here in Massachusetts and I haven’t been on the trails in months, though it honestly feels like years. And just SEEING the trails here gives me a warm fuzzy feeling. How many days till spring?

  25. tabbris on January 15, 2023 at 2:59 am

    lol I can’t believe you didn’t die testing that last one xD

    Great video though!

  26. Mattsmoto on January 15, 2023 at 2:59 am

    Petg is nice and strong but the issue with it is that the impact strength and elongation at break is very low. When PETG fails, it shatters. in this case PLA+ will probably work well for some of these parts (aside from low uv resistance) otherwise pa6-cf or gf will perform great for most of those parts.

  27. Omar Skalli on January 15, 2023 at 2:59 am

    I’d love to see a follow-up with v2 designs with better materials. Maybe with a guest mechanical engineer/ 3D printing specialist.

  28. Simon M on January 15, 2023 at 3:00 am

    It would actually be interesting to see how far sensibly designed parts go, made by someone that knows what they’re doing.

  29. Sven Kaufmann on January 15, 2023 at 3:05 am

    have you tried to print this on a sla printer? Could be more durable as the fdm version.

  30. Patch on January 15, 2023 at 3:07 am

    Try again but print them in cf nylon I reckon with better design and materials you could push them a fair bit harder

  31. The soaring guy on January 15, 2023 at 3:08 am

    That plastic seems really snapy, u sure that is petg. Maybe try puting more perimiters instead of more infil

  32. ScottOne on January 15, 2023 at 3:10 am

    3D printing might be good for a bottle cage, tool mount, or anything like that – MAYBE even a rack on the back to strap stuff dowqn too.

  33. Rocco R on January 15, 2023 at 3:11 am

    Should have made a whole frame 😆

  34. Galen Kehler on January 15, 2023 at 3:13 am

    Understanding material properties is a key pillar of engineering that was omitted here 😁
    The lock on grips could really have a future for riders like me that need some really oversized diameter. Built up much thinker and wrapped with roadie bar tape, could be a comfortable solution

  35. Joe Shmoe on January 15, 2023 at 3:13 am

    Part 2: Same idea, totally different printing material (not metal)

  36. Eisa's Build's on January 15, 2023 at 3:16 am

    anyone else just dying of laughter while watching this? literally just watching a mirror of me! i love this dude! @berm peak esxpress

  37. Joe Shmoe on January 15, 2023 at 3:17 am

    ……heading to run A Line, on 3D printed crucial components…….

  38. Matīss Brants on January 15, 2023 at 3:17 am

    The seat clamp and stem (be it a street bike one) would work perfectly with 3D printing IMO. The jockey might be better with resin although the brake rotor and gear prolly wouldn’t work at all for actual use. With the 3D printed gun community I’ve seen people do the impossible. It just tends to be that the material governs the design process.

  39. Eli Chong on January 15, 2023 at 3:19 am

    he should make a berm peak model

  40. Craig Mccall on January 15, 2023 at 3:20 am

    Addicks. Kingsbury.

  41. Samuel Rao on January 15, 2023 at 3:20 am

    Hey! Do you think you’ll ever revisit and revise the prints of the parts that weren’t up to the mark and then make a video on how the strengthened designs held up?

  42. Seth Wolff on January 15, 2023 at 3:21 am

    Would probably function much better with a higher grade filament….if it works to make guns, you can certainly make comps and grips….I’d probably stay away from friction parts though, as the won’t wear like metal

  43. Jasper Smale on January 15, 2023 at 3:23 am

    Have you looked at printables that’s what I use to find files for my printer.

  44. Arsalan rahim on January 15, 2023 at 3:24 am

    Make a bottle cage

  45. Basil on January 15, 2023 at 3:25 am

    I printed a bracket so I could mount a light on the fork of my road bike. Made it about 4 years ago and it still holds up today like new.

  46. Sebikelife🚴US Vet Paratrooper🪂 on January 15, 2023 at 3:26 am

    WTF🤬This old man ROCKS LOL!!!!

  47. K.H. Weiss on January 15, 2023 at 3:26 am

    Using design principles specific to metal parts to create plastic parts makes little sense. Design principles and material specifications go hand in hand.

  48. MadAxe on January 15, 2023 at 3:27 am

    That’s why the Romans didn’t use plastic swords.

  49. Berm Peak Express on January 15, 2023 at 3:28 am

    I didn’t upload my designs because these are actual bike parts that could fit on a real bike. I’m not so sure it’s smart to put them out there. Also, I’m not sure why I referred to the hex size in the axle with an M before it. It is just an 8 mm hex.

  50. ThatGodDamnedCyclist on January 15, 2023 at 3:31 am

    Seth last year: will take it easy as to not continue to injure himself.

    Seth this year: watch me make and test a home made 3D-printed stem.

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