Some guy and I wanted to give our Mad Torques rear-wheel steering. didn't have any of the correct links, so I made them. Print in the given orientation. Due to the rod ends and ball joints being entirely 3d printed, they needed to be larger. New screws that are longer than the originals will be needed. Because of FDM printing limitations, the short link needed to be printed in two parts. They press together and glue should be used to keep it from coming loose over time. On the link that connects to the servo, the flat end of the ball should be facing the ground. The right end of the short link should be printed in the correct orientation. THERE SHOULD BE ABSOLUTELY NO SUPPORTS ON THE BALL OF THE BALL JOINT.

Creality

Ender 3 Pro

No

Yes

0.16

50-75, 5 walls

The short link may need some sanding done, but if support settings are good, then likely not. If the ball joints don´t move on their own off the print bed, then you should take a Hex wrench or small screwdriver, put it through the eyelet, and carefully break the ball loose. The interlock should press together with some mild force (light mallet tap, whack with a wrench, etc.) If it does not go together, sand the ¨key¨ of the interlock to fit together smoothly. Glue should be used to keep the interlock together permanently.