I would need the skinny end of the case to be bumpered.
Is that what you mean? I would love one of these!
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Alright I’ve finished up the motor-side of the bumper. It’s essentially the other half to the previous bumper, I plan on printing both to protect the purrrty anodized aluminum from AT boogers.
Notes
- Clears 7" (175mm) tires to stand the board up on the motor mounts
- 63mm diameter recess in bumper for motors (reach out if you need larger)
- Be sure to print the correct bumpers for your drives: V1 or V2; V2 has M3 lid screws
Fitment
I can’t really comment on fitment yet as I’m still printing V1 bumpers (I unknowingly made V2 bumpers first, lucky you guys). I do have a full set of V2 bumpers and they fit very well on my V1 drives. The differences are very slight so I suspect they should fit fine on V2 drives.
Files
Front is wheel side
Back is motor side
V1
lrv1-bumper-back.stl (455.2 KB) (w/o hole for grub screw)
lrv1-bumper-back-g.stl (492.2 KB) (w/ hole for grub screw)
lrv1-bumper-front.stl (643.0 KB)
V2
lrv2-bumper-back.stl (378.8 KB) (w/o hole for grub screw)
lrv2-bumper-back-g.stl (418.5 KB) (w/ hole for grub screw)
lrv2-bumper-front.stl (4.1 MB)
Known Issues / Future Work
- The lid bolts compress the bumpers; use washers or wait for a small/thin shim plate I’ll release after testing (currently printing). Your current screws should be long enough.
- Back bumper design isn’t ideal if you aren’t using both bumpers
- Easily fixed; just needs to be cut shorter (ideally in your slicer)
- I’ll remix another STL with “shortened” back-only bumpers
- You may need to scale slightly depending on your printer/filament
- Once I test fit my V1 bumpers I may adjust tolerances
- I need to release some step/f3d files for you folks to remix at will
Free bumpers
Since I printed a full set of V2 bumpers I have a set to give away if you cover shipping; PM me.
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Outstanding!
Anyone want to print some of these for a poor 3D-printer-less soul? I have new Uncirculated pics of @bindingsMcgee’s mom for payment
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love this. and my printers broke. dernnit.
Looks great! Pop your filament in the oven at 75 degrees celsius for 40 minutes it will make the print look way better with no stringing 
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You did it!
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Just read through about 900 of these comments, so im more caught up now - @moon when do you think 4:1 Helical Drives will be available? Also, will the price remain around 320 Euro per set as mentioned somewhere above?
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It should be at the top be at the top right of the page. If not, you don’t have permission for some reason.
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Some more (minor) issues to work out. Stay tuned.
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out-fucking-standing
I swear, if more people did that, this thread would be mmmaybe 100 posts 
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Not if I can help it 
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Not sure if the price will change and by how much but 4.0 is a good ratio and I would like to stock that too
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My loctite is drying today but tomorrow will have a lot of assembly going on. Will likely need to print a spacer but that will take no time.
I can’t wait for the rest of you to get these… So much hype come true.
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I didn’t have it at first but now I do, Thanks!!
You posted a test video and some pictures a few posts up and your deck and enclosure caught my eye - I’m pretty new to the hobby, so I’m sorry if its obvious, but what deck + enclosure is that?
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Its hand built deck with custom artwork and my carbon enclosure. I have a build thread for it, which I haven’t updated…
While the build might look finished, I still have few things to do under enclosure.
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I’m one or mayyybe two revisions away from being happy with the bumper. Although realistically the first version fit just fine and Im being a little OCD.
The bumper now splits closer to the motor side and near a bolt holes so folks who only run a back bumper won’t have a loose end.
Otherwise I’ve added equal amounts of tolerance to the interior to get things to line up a little better. It’s much better as you can see in the new pics, but I need a little bit more tolerance in two dimensions and a little less in another.
The next revision is printing now and should allow the back/front bumpers to meet flush as designed. They currently have a ~0.1mm gap.
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Can you make a solid version of it all together? I mean I know you can pretty easily… Will you?
Tpu might be able to slip on and over it like a silicone cover
Oh I should have started with a compliment. Thank you for doing this man. I sincerely appreciate it.
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A one piece version is a great idea and I agree it should slip on after looking at it in real life. I was concerned it wouldn’t but it looked a lot scarier in Autodesk lol. I’ve also since shortened the ridges in some key areas that should make it easier to slip on
Also have a good idea for the bolt holes. Once again stay tuned.
I also still need to post files for my spacer/gasket combo if anyone wants to print that.
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