Extension Arm to slow Vibroplex CW Bugs

If you have a Vibroplex bug with a round arm and round weights, this part will allow you to slow your bug down considerably. 

Remove your weights
Press fit the extension arm on
Put the weights back on
 

Print it standing up, larger end on the print bed. Brim is a good idea. No supports needed. 

Should work printed in any filament you like. I had great success with PETG for this part. 

If it does not fit, you may need to scale it up or down a few percent to fit if yours is not the exact size as mine. This fits perfectly on my 1942 Vibroplex original.