Hi QS welcome to MYCNC.

I'm sorry but you have lost me on what you're doing or asking? making gears out of Aluminium is not the way to go as ally is too soft a material for a machine ie lathe orientated,reason being they get chewed easily and chip at the finer points ie the teeth.

Have you looked at this site for all manner of spares for all models of the mini lathe?

http://www.littlemachineshop.com/pro...First=H&Last=K