Re: [CAD_CAM_EDM_DRO] Re: Tapered Threads? Kim's TurboCNC codes

You are right about it getting more complicated. For multiple pulses
per rev, you need the encoder output as well as an encoder index ouput,
so you know when you are at pulse #1 for the revolution. Thus far 1
pulse per rev does everything we need, so we'll keep using it as such.

Using the index pulse isn't a big deal, but you need an encoder with an
index output and you need to wire another channel into the controler and
PC. OR you could have an index tooth on the encoder gear that is much
bigger or smaller than the regular teeth and find pulse 1 with that.

Again, not too much difficult, but why bother ? If/when I need it, I'll
add it.

Kim

On Mon, 2003-11-03 at 11:40, Tony Jeffree wrote:
> At 11:19 03/11/2003 -0700, you wrote:
> >Furthermore, if TCNC needs multiple pulses per rev, I'll add it... The
> >syncing part of the TCNC code is pretty simple.
>
> ...but if you go for multiple pulses per rev, it will suddenly get
> significantly more complex. In order to be able to do multiple passes and
> maintain alignment between them, you will need a 1 PPR index pulse as well
> as your multiple PPR signal, if I am not mistaken.
>
>
> Regards,
> Tony
>
>
>
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