Re: [Emc-users] Spindle Control

[Andy P. <an...@an...>]

2009/10/12 Hubert Bahr <ha...@hb...>:

> response.  However, a single pulse per revolution would also serve as a
> sync point for rigid tapping.  Is this similar in character to the
> recent discussion on threading?  Which way is better, or do I need
> both.?  If multiple pulses, do they need to be 50 percent duty cycle?

If you want to do rigid tapping then you need a full set of index and
two quadrature lines, otherwise EMC can't tell which direction the
spindle is turning.
In index-only or index+pulses the encoder only ever counts up.
It might be possible to use only the two quadrature channels without
an index, I don't know if EMC2 supports that. You would have to be
very sure of not missing a pulse though.

-- 
atp