Re: [CAD_CAM_EDM_DRO] worm drive -> rack and pinion

Just try it!! I didn't damage a 7/16 - 14 tap on my first test with a 1"
brass blank. My second 'good' one was 1/4 -20 and now I have a rotary table
for my very little mill. Any ways, it would be worth a tap just to see how
neat a trick this is.

Jeff





At 12:06 PM 11/11/2000 -0800, you wrote:

>I have been following the recent discussion on making worm wheels(?) to mesh
>with a standard threaded rod or bolt. I was wondering if anyone has tried
>making smaller diameter wheels that could be used as a pinion running on a
>threaded rod "rack". I am thinking of something in 1" pd wheel that would
>mesh with a 5/8" piece of ready rod... I realize the tooth profile will
>probably be getting pretty funky and there may be some problems getting the
>tap to properly thread around the perimeter of such a small wheel. Before I
>go burn up a tap, I thought I would ask the group to see if there is any
>experience in this area. I would like to use this idea for the drive system
>on a low end CNC router table.
>Comments welcome