do you still have this? i'm looking to get into lasers and am trying to test out before i waste cash, i'm paypal ready but don't count on me to reply to pm so my email to my phone is b07jeffrey@sprintpcs.com, thanks
Look around hardware stores and similar sources for copper, bronze, aluminum or any small metal machine wheels, short tubes, different small belt wheels. Sometimes all you need to do is widen the hole ...