So first time post long time builder. I have access and use a wide range of 3d printers. I am looking at the exploded view of the Ridge Rock drive shaft and gear assembly in axles.
https://dealer.redcatracing.com/manuals/RIDGEROCK_BG_MANUAL.pdf
Being newish to RC Crawling what are the weak componets in the axle. I might be able to make them out of high end nylon or resin to give us an option for durable cheap MOA designs.
My nephew and I both have these heavily modded, and push them to and beyond their limits. Here is a list of weaknesses in order of biggest issue to smallest (IMO of course).
Outer steering knuckles. We have probably each gone through 15-20 for each of us. Seriously..we constantly order spares. They brake where the tie rod attaches.to the knuckle arm. Have a buddy that is actually machining a set of steel knuckles for me on a lathe. Will out weight down low and be very strong. This would be a very easy part for a company to manufacture and sell. I wish someone would do it. We run the 20 KG servos, so it's not like it's got a Reefs triple 7 cranking on it. Stock knuckles are just weak. LOL
Axle gears. Not nearly as bad as the knuckles but we've killed a few sets. Probably 2-3 for each of us.
Plastic tie rods. We broke a few and replaced with all thread sleeved with brake line tubing and Traxxas rod ends. This might be part of the reason we break so many knuckles. The metal tie rod will not give and break so something else will.
The set screws that hold the axle cross pins back out of the axles shafts and the cross pins fall out or bend. Mandatory loctite part.
Plastic cups for axles in outer knuckles. Actually take quite a bit of abuse but we've still managed to demolish a few.
The chassis. Yep, we've broken a couple.
I should say that we do not jump, bash, or drop our rigs. Pure rock crawling. But they are on Hyrax 2.2 tires with predator compound and they do get bound op sometimes. I ran mine on 3s mostly and nephew sticks to 2s to try to save parts.
I now have a 4ws steer Bully with F/R dig and mixing using a GT3C radio and receiver. HH mini br dual. It can do some stupid stuff. And, the modded Danchee hangs pretty close with it. Dig helps me do stuff the Danchee can't some times, but the real difference is the Bully is just much stronger and more durable.