I need to connect a DC motor to a square shaft (pictured below). The problem: The Gearhead motor shaft is semi circular with a small flat piece. The shaft is a square face. How can I make this work? I need to demo this working on Thursday, all info is appreciated. [image] [image]

DC Motor shaft coupler

Grumpy_Mike December 13, 2010, 11:39pm 7

I used the spiral shaft coupler and an Oldham shaft coupler in this project:-
http://www.thebox.myzen.co.uk/Hardware/CNC_Conversion.html

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