Emulsion dispenser

thingiverse

I managed to get it working pretty well, but there's one major issue - the rod keeps turning instead of pushing the piston into the cylinder. This problem needs to be blocked somehow. Additionally, I was unable to achieve a tight seal between the 50mm PVC and the piston, so this project has been scrapped for now. However, the drive unit might still be useful for someone else. All the big holes are drilled out for 22x7x8 bearings. The threaded rods appear to be M8 if I remember correctly.