RC 3D Printing Forum: Cars, Chassis & More

Welcome to the Model FACTORY / mfactory33 – COMMUNITY!INFINITY the 1/10 scale 3D-printed custom off-road RC car CHASSIS (2WD for now??!): INFINITY – Social DevelopmentFront wheels and direction arms

You need to log in to create posts and topics.

Front wheels and direction arms

#1 · January 8, 2026, 11:24 pm

i`ve tested different methods to join the front wheels to the suspension arms, i`ve tried using different arrangements for screws, but they always worn out overtime. i`ve been using a modified version with a flat metal pin (9mm) glued to the red pieces, that works flawlessly and it still doesn`t have any backlash. i also made the linking bars for the direction a single piece because the older version that used a headless screw also worn out. i recommend adding to the design this single piece direction link bars with ±1mm ; ±2mm ;±3mm total length to fit any necesary wheel configurations.

finally, the total angle that the ball joint from the direction arms is exposed to, is lower than the actual capabilities of the ball joint, so the “neck” that joins the bar with the ball can be widened by 1mm to make the part stronger.

Uploaded files:

#2 · January 9, 2026, 10:58 am

Hello,

Thank you for sharing your experience! I wanted to make some updates to the chassis; maybe I’ll have time for it in the coming months after the new project.

Thanks for the tips, I will definitely use them.

I also watched the videos you shared — thank you very much!

Best regards,

Balázs

PrimeDynamics has reacted to this post.

#3 · January 9, 2026, 2:54 pm

Pleased to help! i was also thinking that the rear axle linking bars and ball joints also worn out overtime causing the back axle to move sideways like 3mm, i`ve reprinted the balls and linking bars with stronger filaments but still the same poblem, maybe upscaling the balls where the linking bars join will reduce this unwanted backlash

Uploaded files: