This is a simple and easy to print pulley remover / puller. It can be used to remove pulley from motor shaft or to remove bicycle chain-rings to name a few cases.

• Bolt spec is M16, if you already have one you might not need to print puller-bolt.stl
• I provided a an adaptor for a 8mm motor shaft and an "Arrow head" adaptor as well.

Printing Instructions

• Prints are already oriented in the optimal position
• None of the parts require supports
• increase number of wall (4+), top layersand bottom layers to add strength to the part
• Print puller-arms.stl with 100% infill
• puller-bolt.stl is a slightly longer print compared to the other 3 parts.
• puller-bolt.stl might be good to print with a brim

Weaknesses/Future Improvements

• The weak point is the hinge
• A version with 3 arms and with 4 arms would be good

Updates

• Added a version with 4 arms