Pitch-roll head & mounting collars for linear actuator

thingiverse

I designed these custom parts specifically for a robot project on Hackaday. They match the linear actuators commonly found on eBay and similar websites. I built them to be useful, so they might come in handy someday. They fit snugly into a 70mm hole, which I was able to create with a hole-saw of that size. Six screws or bolts keep them securely in place. The bottom collar can take a bearing up to ~20mm thick and has an OD of 47mm. I used an old headstock bearing from my motorbike, which had an ID of ~20mm, just enough to fit the bottom mount of the actuator. There are slots for M4 nuts, allowing M4 screws to snug-up tightly against the body of the actuator. The pitch-roll head is a bracket designed for standard size servos that fits securely onto the shaft of the actuator (20mm). This allows a platform to be kept level or tilted at various angles. Check out https://droidbot07.blogspot.com/2018/03/head-pitch-roll-and-yaw-mechanism.html for more information on this project.