RE: [CAD_CAM_EDM_DRO] Re: mouse encoder?

You can make all the disks you want, but the encoder read head has to
match the disk to generate quadrature output properly. The people at US
Digital told me that you are OK up to about a 10% variation from the
designed count for a particular head.

Tim
[Denver, CO]

> -----Original Message-----
>
> Why use a 1/16 end mill. Use something much smaller (say .01
> dia.) and you can do a whole lot more slots (about 450+ on a
> 3 inch disk).
>
> Smoke
>
> >Nothing to stop you from making your own discs if you have a
> suitably
> >small end mill. I made a 60-slot disc for RPM measurement
> using a 1/6"
> >end mill & the 3" diam platter from a defunct hard drive - worked a
> >treat.
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/