RE: [CAD_CAM_EDM_DRO] SPINDLE INDEX PULSE

HI Bill,

It looks like a single channel of opto, so it's probably a single index
hole.

There is a PDF manual on the board.

http://www.cnc4pc.com/Tech_Docs/IPB_Manual.PDF

Probably about a #40 drill bit.

Some have put a pulley on the tail shaft of the Sherline, and ran a short
belt to an encoder device. For just a disk, I'd make up a hub with a
setscrew, and solder a .063" thick disk (3" diameter?) to it.

Look at the output of the board with a 'scope. You can always make the hole
a little larger. If you had the data sheet for the opto-interrupter, you
could look up its detector size for a suggestion of the hole size.

Make your own!

Alan KM6VV

> Has anyone on the list made an spindle disc, to mount on a Sherline, using
> the CNC4PC board, for use with Mach3?
>
> If you have,could you give some details?
>
> 1. How many Holes on it?
>
> 2. What diameter hole/slots, did you use?
>
> 3. How did you mount the spindle disc on the Sherline?
>
> 4. Any problems?
>
> 5. Any suggestions as to how you would improve your efforts?
>
> 6. Have you used it for threading with Mach3 yet? Results?
>
> 7. Whatever, I forgot to ask???
>
> Thanks,
> bill
>