ROB-12629 disk hole

hey, can anyone tell me the hole size for the encoder disk? or if the material is machinable for a 4mm hole?

thanks

I don’t have it anymore so I can’t measure for you but if I recall correctly it’s made of rubber and will fit on a shaft of a small sized hobby motor. You’re not going to be able to machine it but a you might be able to drill it out a bit smaller than 4mm to fit a 4mm shaft.