THC config that works.

#copy sample code from here:
setp stepgen.2.position-scale [AXIS_2]SCALE
setp stepgen.2.steplen 1
setp stepgen.2.stepspace 0
setp stepgen.2.dirhold 35000
setp stepgen.2.dirsetup 35000
setp stepgen.2.maxaccel [AXIS_2]STEPGEN_MAXACCEL
### orginal with Linuxcnc stepconfigure you see the 2 lines below activated, deactivate them.
#net zpos-cmd axis.2.motor-pos-cmd => stepgen.2.position-cmd 
#net zpos-fb stepgen.2.position-fb => axis.2.motor-pos-fb 

### you must un-link-p (p=pin) all connection's of axis 2 position (pos) command and the feedback (fb )command.
unlinkp axis.2.motor-pos-cmd
unlinkp axis.2.motor-pos-fb

### make a connection between z pos value and the motor position command value
### expression can also be without the " <= " mark : net Zpos thcud.z-pos-in axis.2.motor-pos-cmd  
net Zpos thcud.z-pos-in <= axis.2.motor-pos-cmd

### make more connections
net thc-pos-out thcud.z-pos-out => stepgen.2.position-cmd
net thc-pos-fb  axis.2.motor-pos-fb <= thcud.z-fb-out

### this is interesting, the value must be very low i have tested. now for example is 0.001 % and 0.01 speed
### if you do it like this, you can link the value to your user interface : setp thcud.velocity-tol gui3_test.hal_scalebutton1
### don't forget do it only in the postgui.hal section if you want things to work, like led's etc.
setp thcud.velocity-tol 0.001
setp thcud.correction-vel 0.01

### orginal from linuxcnc step config wizard ...
net zstep <= stepgen.2.step
net zdir <= stepgen.2.dir
net zenable axis.2.amp-enable-out => stepgen.2.enable

### also important to place this in the file.
net requested-vel thcud.requested-vel <= motion.requested-vel
net current-vel thcud.current-vel <= motion.current-vel
#end ample code