PRT 96 ratios etc

[spotlight3d]

Hello all

i have a PRT 96 with oriental motors and gearboxes 3.6.1 ratio
i have converted to gecko drives and am trying to calibrate MACH 3 to run with them
i have got the X and Y done ok but the Z when i set it to the same settings give me .75 actual cut depth when the gcode is set for 1 inch

can anyone tell me if the Z on a PRT 96 is different than the X & Y e.g cogs tooth numbers etc?
and if so what is the differance so i can calibrate correctly

thanks in advance

[cnc_works]

I'm not at my Mach computer, but on the diagnostics page there is a dialog box where you can move the Z a predetermined distance, then measure actual distance and set the calibration properly.

[garyb]

As Don said, there's a button labeled "set steps per unit" it's self
explanatory and you will find it on the settings page right above the reset button.

[spotlight3d]

Hi Guys

thanks for the input

the problem i have is that i am using a special version of MACH 3
that does not have the calibration function in the settings window
it has been removed for some reason
the box is a Candc box and uses its own MACH screenset.
so knowing what you have in your mach motor settings would be very helpful

thanks

[gc3]

Hello all

i have a PRT 96 with oriental motors and gearboxes 3.6.1 ratio
i have converted to gecko drives and am trying to calibrate MACH 3 to run with them
i have got the X and Y done ok but the Z when i set it to the same settings give me .75 actual cut depth when the gcode is set for 1 inch

can anyone tell me if the Z on a PRT 96 is different than the X & Y e.g cogs tooth numbers etc?
and if so what is the differance so i can calibrate correctly

thanks in advance

My machine has 20 tooth pinions on the x y motors, 18 tooth pinion on the z motor...check your z pinion

GC

[garyb]

Paul, just load the 1024 screen set and you will be able to access the calibration function, load your custom screen set back when completed.
I run 3.6's & 7.2 motors with 25 & 30 tooth pinions on my SB and belt drives on my 2nd machine so just throwing numbers out there is not going to help you, you need to know what you have on the Z-axis.