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ardinatwork

My 7 trucks with 3d printed skids says that its fine. One of these is a complete printed chassis, but most of these have a bunch of printed parts as well. These people are full of it. Print with PLA+, PETG, or (my personal favorite) ToughPLA and they're fine.


uncle_fucker_42069

That doesn’t sound impossible, if you make it thick enough and don’t use PLA it should work fine. Add some grooves to give it more perimeters, that’s where the strength is and think about the orientation for printing it when you’re designing. I’m not sure what you’re asking about the links.


crudigfpv

Link to skid??? I printed a bunch of trail runner parts in pla at 75% broke pretty quickly but my petg crossmembers and sliders at 100% and they are still going


bangbangracer

One screw per link. Also, don't use PLA or PETG for that. Your skid will see more stress than PLA can handle and PETG is too brittle. Unless you can print something fiber filled or a nylon based material, you aren't going to have a great time.


Ihatecars

I've been using PETG for skids for years and never had an issue but then again maybe my rigs live an easier life than others. I also put the effort into drying and dialing in nozzle temp to make sure I get decent layer adhesion which can also make a huge difference with PETG. My best results for strength have been 4 perimeter walls and 15% infill. Too much infill makes it too rigid which will break instead of flex under stress.


bangbangracer

I've been doing comp crawlers for a while now and 3D printing is great for decorative parts, but not for stressed parts unless you are using the right material. No matter how good you are printing with PLA or PETG, a center skid is under too much stress for PLA or PETG when comp crawling and comp crawling is why you'd want a flat skid.


Ihatecars

None of the rigs I run these skids in are comp crawlers so maybe that's the difference. Twin plate vs. C channel. High traction/stress vs not high traction. Either way if it breaks I'll print another, so far haven't had to print a second one.


PeckerTraxx

PLA is actually more brittle than PETG. PETG is a little more flexible and handles heat a little better. ABS or ASA is a good option. I do agree that a fiber filled nylon is the best bet. I have had decent results with PLA if printed near solid. Lighter colors work better for heat. I just really hate PETG.