Not Just another Boxford tcl 125 thread....

[m_c]

I know how to set Mach3 up, as I just done that on my lathe this week!

First you need to set the right step/dir pins in Motor Outputs, then on the Output Signals set the pins for controlling the relays according to the output #'s set on Spindle Control. You'll want to set the same output # for CW/CCW in the Relay Control (top left), and use that to control the additional relay that turns the supply on/off (the direction is controlled by the dir pin)
Then you'll need to set the values for the Spindle in Motor Tuning to give the desired step rate for providing the required step rate to the V3 board, Which having had a quick look at the manual, is 2000 steps per second for 10V output, so the figures you put in Steps Per, and Velocity per min, need to multiply to give 120000 (2000x60sec). Also remember you need to save the settings before closing the motor tuning box, or any chances won't get saved, and to make sure the pulse width is set to something other than 0.
And after that, set the pulley speed in the Spindle Pulley config.

Then in the manual screen, clicking spindle should power up the relay, then entering a speed into the S DRO and hitting enter should see power appear on the analogue terminal. Personally, I left my motor drive disconnected until I was happy I was getting the expected power on the analogue pin, and the relay was working how it should.


Having written all that, do I remember somebody mentioning that the Gemini doesn't need the full 10V?
If so, adjust the step rate in Motor Tuning to get the desired voltage, if adjusting the V3 trim doesn't decrease it enough.