Messages

31

VB and the development of wizards / Re: help withusing vbscript to "feedhold" gcode execution

« on: October 17, 2016, 05:45:40 AM »

By definition, feedhold only works when there's movement TO feedhold.

Whilst an M code is running, there IS no movement.

Try an M1 instead and see if that does what you want. (remember to enable it).

32

General Mach Discussion / Re: Read and write to Z DRO?

« on: October 17, 2016, 05:41:46 AM »

stirling,

Do you have a listing of other  undocumented variables?

RICH

Not really - just what I've said about OEM DROs and 15001 - 15255 are linked (to a certain extent) with User Dros 1001 - 1255.

But as you've said above - lots of info available. There's lots of posts here that cover most of it that a few searches reveal.

33

General Mach Discussion / Re: Can not increase motor velocity (65mm/min). Why?

« on: October 11, 2016, 04:03:31 AM »

You may be right - just raising a note of caution.

@musicworld1 - have you implemented current control on the L297?

34

General Mach Discussion / Re: Read and write to Z DRO?

« on: October 10, 2016, 10:50:17 AM »

Hi Roger

After a nudge - I re-read my notes and you can indeed access OEM DROs from gcode.

Use vars 99ABC where ABC is the OEM DRO number.

35

General Mach Discussion / Re: Can not increase motor velocity (65mm/min). Why?

« on: October 10, 2016, 10:46:15 AM »

it looks like the L298 can take up to 46v so i would go to 36v max to allow some headroom for overvolatge during deceleration.

....and the L297? ...and current limiting?

36

General Mach Discussion / Re: Mach3 sending pulses to wrong LPT pins

« on: October 10, 2016, 04:36:23 AM »

Glad you're making progress.

37

General Mach Discussion / Re: Mach3 sending pulses to wrong LPT pins

« on: October 09, 2016, 05:38:23 AM »

I just want to move X-axis motor, 200 steps or 1 cycle. What should be the ideal setting.

Step pin is attached to 2nd LPT pin.

Your motor should be turning fine now that you've turned off MaxCL mode. Is it?

BTW - 200 steps will only turn the motor 1 complete revolution if you are not using micro-steps. What driver do you have connected?

38

General Mach Discussion / Re: Mach3 sending pulses to wrong LPT pins

« on: October 09, 2016, 05:17:43 AM »

You had MaxCL mode selected which is quadrature on two pins. At 1 step per unit at (say) a feed of 60 the signals on D4 and D5 would be changing at around 1Hz. That's well within parmon's ability to show it and well within your ability to see it.

Now you've switched MaxCL off, you're using step/dir mode. The step pulse will be on pin 2. A step pulse typically lasts around a few microseconds so there's no way parmon can show that and even if it could you wouldn't be able to see a two or three microsecond pulse.

Stop messing with parmon - it won't help you with step pulses.

39

General Mach Discussion / Re: Mach3 sending pulses to wrong LPT pins

« on: October 09, 2016, 04:28:46 AM »

Should I un-check it?

What happened when you tried it?

40

General Mach Discussion / Re: Mach3 sending pulses to wrong LPT pins

« on: October 09, 2016, 03:59:00 AM »

My guess would be that you have Max CL Mode ticked on ports and pins setup.