How have you turned anti dive off ?   I`m struggling to understand what values to use for the adjust rate

You use Mach4 or Mach3? For mach4 you go to configure/plugins/regfile and there are all the options for THC and more, you find the nf/thc/AntiDiveState and change it to 0 so it be disabled.

Adjust rate is the % of the feedrate you want the TCH to make corrections on Z Axis. If your Z axis velocity is 2000mm/min and you put 10% adjust rate then your THC will correct with 200mm/min.

Are more options but if you use Mach3 aren't for you and better ask Mach3 topics for help.

Thanks for the explanation, I use Mach4 but notice the Regfile doesnt match what I have set in the GUI ?     in fact its in Imperial and not Metric I will have to do some experimenting.

Thanks for the explanation, I use Mach4 but notice the Regfile doesnt match what I have set in the GUI ?     in fact its in Imperial and not Metric I will have to do some experimenting.

Check this nf/thc/DeadBandWidth default is 5, if measured voltage is -/+5V then the THC is disabled. I have it to 1 but my electronics measure very low voltage 0-5V.

Yes the default values is inches but Mach4 not understand metric/inches, just put the values you want.

Great thanks for the help, I will be doing more testing later today.

Hello I’m really struggling with my pokey 57 and the plasma sense thc I can’t get it to work if I do a test run plasma cutter on it arc but  won’t read out the voltage someone any idea

You have to set the property of the Actual Voltage DRO to the Pokeys PlasmaSens HV register.