Topics

1

FAQs / Z axis does not move when threading

« on: November 08, 2010, 09:56:52 PM »

hi people I'm having problems trying to cut threads on my orac lathe, recently converted to run from mach3. I did have some problems at first calibrating the spindle speed and have now over come this. the problem Ive got is when trying to cut a thread the Z axis does not move. The spindle starts, the tool moves into start position and then just sits there and does nothing. I have been using the wizard to generate the Gcode G76 Ive played around with all i can think of and nothing seems to work. When using turn diagnostics plug-in it reads the rpm OK but everything else has 1.#INF

2

FAQs / spindle speed reads (-)

« on: November 03, 2010, 08:29:01 PM »

I have recently set up my old denford orac lathe with mach3. All seems well apart from spindle speed. when the spindle starts up it reads it as a - figure. ie if i input m03s1000 in the mdi page it says the speed is -1000rpm. Ive changed debound settings and tried active low/high. Ive set up the spindle pulley to min 200 max 2100. I'm mega lost on this. anyone got any idea's??