Marble Machine

thingiverse

Linax created this awesome model that I simply had to make, thanks for sharing it Linax, I found a couple of small changes that I wanted to implement. The bearing now has a shoulder to hold it securely in place, the internal square hole is 0.2mm smaller to fit snugly on the shaft, and it's also 2.5mm longer to keep the large cog stable. I've included the original sized bearing with a shoulder for the hand crank side as well. Another modification I made was thickening the oval spacer by 1mm to constrain the gear and cams effectively. You can check out a video at https://youtu.be/SVGj1WbhWPs to see it in action, hope this is helpful, looking forward to hearing your thoughts and opinions. Print Settings: Printer Brand: RepRap, Printer: Original Prusa i3 MK2, Rafts: No, Supports: No, Resolution: 0.3, Infill: 20%, Notes: Printed in PLA at 70mm/s