Can't get lathe to Feed

I should very much like to contact the person who has successfully converted this Boxford machine to work with LinuxCNC. It would save me a whole world of frustration.

# set the HAL encoder to 100 pulses per revolution.
setp encoder.3.position-scale 100

#set the HAL encoder count mode
setp encoder.0.counter-mode 1

# connect the HAL encoder outputs to LinuxCNC.
net spindle-position encoder.0.position-interpolated => spindle.0.revs
net spindle-velocity encoder.0.velocity => spindle.0.speed-in
net spindle-index-enable encoder.0.index-enable <=> spindle.0.index-enable

#Connect HAL Encoder to Parallel Port
net pulse-index-combined parport.1.pin-10-in encoder.0.phase-A encoder.0.phase-Z


A couple mistakes here

1. You cannot use a combined index-Z/A unless you have 1 count per turn
(index must be 1 count/turn)

2. You are using encoder.0.velocity (which is scaled in RPS) rather than encoder.0.velocity-rpm

I'm not sure what my solution is here:

1. You cannot use a combined index-Z/A unless you have 1 count per turn
(index must be 1 count/turn)

Just out of interest, is it possible to use a sensor wheel with only 'one' slot and set the scale to '1'. I'm only asking out of curiosity

rider-83 wrote:

I'm not sure what my solution is here:

1. You cannot use a combined index-Z/A unless you have 1 count per turn
(index must be 1 count/turn)
 

Free up a  parallel port input and add an index sensor would be one way.
 

rider-83 wrote:

Just out of interest, is it possible to use a sensor wheel with only 'one' slot and set the scale to '1'. I'm only asking out of curiosity
 

Yes, of course this cannot compensate for speed variations during the turn so works better at higher speeds and constant loads