Re: [CAD_CAM_EDM_DRO] Cool Worm Gear

How do you set up for different gear diameters? How is the gear blank
mounted? Is the cariage fed in the X or Y direction? You turn the tap
while the gear is being cut? Maybe a sketch with all 3 views would be in
order?

>You don't have to tilt the gear. The tool rotation combined with the
>carriage feed causes the correct helix to be cut. It is like taking your
>lead screw between centers and feeding the gear past it at the correct

lead.

>Now try to imagine grinding the lead screw down to a single point cutter.

If

>you still feed the gear past at the correct lead the single tooth cutter
>follows the same helix relative to the gear. It took me a little while to
>visualize it at first but once you get it you'll the simple elegance of it.
>
>
>-- Greg Nuspel