InMoov-Stomach Ball Bearing Swivel Adapter Kit

thingiverse

I found printing the eight main stomach pieces and getting the ball bearing troughs to line up and allow smooth rolling on the trough surfaces to be frustrating at best with my printer. So, I’ve designed a stomach swivel adapter that incorporates a 130x105x13mm ball bearing assembly from AliExpress: https://a.aliexpress.com/_mNzi5tI. Designed for use with M4 Socket Head Bolts to attach hub and collar to their respective stomachs platters. The trough on bottom platter allows for free turn of outer ball bearing ring. It does add 20mm of overall height to the project (between bottom and top stomach platters) as shown in pics. I tried to mod to all eight main stomach platter pieces to accommodate bearing through subtraction without adding height, but I had tough time altering the .STLs. I may attempt again later. I’ve included .shapr files for easy modifications and sure fit. I did not include a .shapr3d file for StomGearExtended because I was working with an .stl. This piece should not be modified anyway. Shapr3D is free and can save up to 5 models.