MI1 motor mount plate
 

Hi guys, just building my MI1, all going very well til I try to mount a standard 540 size motor...

The collar on the motor is 13mm dia, but the rounded slot in the motor mount is only 12mm wide, am I missing something ( before I set to the plate with a file or dremel)

All measuements approx as I am using a ruler to to the measuring!

Peter