CV joint for toy Rock Crawler

thingiverse

This is direct fit for this popular toy grade RC Rock Crawler. Designed in Tinkercad. These toy rock crawlers can be found under a couple brand names on Amazon, Walmart and Ebay (as well as Bangood, Aliexpress etc.). https://www.amazon.com/Cheerwing-Crawler-2-4Ghz-Control-Monster/dp/B01MZ61GLM/ This is actually a pretty good rock crawler after mods. I prefer it in many ways to the popular WPL C24-1 and I'm not sure why there aren't more parts for them here. It's got a better CG, more power (dual 130 motors vs. single 180 size) and because it doesn't need drive shafts the power delivery is more direct. Not to mention the buggy chassis has greater suspension travel. This CV joint is probably not as durable as the original but it does hold up quite well given the low RPM and low stress the drivetrain sees. I've got a good few hours on a test PLA print and it's holding up great. Improved steering too over the worn original part. I print these at a 15 or 20 degree angle with supports and a raft. 3 wall lines with 100% infill - I recommend a triangle or cubic infill pattern for strength. PLA seems to work fine but obviously ABS or PTEG would be better. The part isn't stressed too much just rubs against a plastic housing so it eventually breaks. Eventually I hope to find a bearing size that's easy to source and I'll develop replacement steering hubs and joints.