Re: [CAD_CAM_EDM_DRO] Re: Step resolution question, dividing head

Ok, Duh... I'm a walking example of what happens when someone with poor
math skills gets into a technical trade.
A 1.8:1 ratio is what I need to get things under control.
Working with the limits of shaft diameters, a 30 driving and 54 driven
pulley will work perfect. (or 15/27 but 15 tooth pulleys generally have
1/4" bores) But nobody makes them.

So, I can get quality plastic gears, or chain/sprockets.
MSC sells 1/2 face width nylon gears, could go with steel for drive,
nylon for driven. Steel on plasic would allow me to close up clearance
to next to nothing.
Berg sells .1475 pitch chain and sprockets with bores that are
acceptable.

I'm leaning towards the gear solution myself, or bite the bullet and
make up some custom pulleys.

Thoughts?


Jon