AR4 robot J1 Limit switch cover - New version

I designed a cover as an addon to the AR4 Robot (Annin Robotics) to protect the J1 limit switch. especially against main cables when J1 is fully moved. 3D print, and install it : drill 3mm holes, remove the M3x14 Philips pan head screws on the J1 limit switch and reinstall the cover on top of the switch using two M3x20 Philips pan head screws. Et voila.

Comment for V2: the previous version (published in the late forum) had a design flaw as the M8x10 cap screw installed into the J1 platform was jammed by the cover when J1 was moved in the negative direction at around 158°.

Nevertheless with the new version, depending on the calibration process and if the J1 limit switch arm is bent or not, it might be needed to set a value slightly less than 170° in Kinematics/J1 Neg Limit in AR4 software. 168° should work OK.

Hope it can help, feel free to comment.

Regards

Files and description available here : https://www.printables.com/model/1380505-ar4-robot-j1-limit-switch-cover-new-version