Messages

11

General Mach Discussion / Re: Trouble with limit/home config

« on: May 09, 2013, 09:48:42 PM »

Hood:

You might want to try that again.  The screen shot that you sent doesn't reflect the file I uploaded.  (Although I did note that the Z home is not checked!)  I just downloaded my own upload and it clearly shows X-- and X home enabled.

Joe

12

General Mach Discussion / Re: Trouble with limit/home config

« on: May 09, 2013, 06:01:21 PM »

Here you go...

13

General Mach Discussion / Re: Trouble with limit/home config

« on: May 09, 2013, 01:21:24 PM »

Hard to understand how hall effect switches "bounce".  I am pretty sure they have a hysteresis built in.  But in any event, changing it to 2000 had no effect.  But I have solved part of the mystery.  With two switches and "Home Slaved to Master Axis" checked, on side would remain within the limit switch proximity after the other side backed off.  Unchecked, it works as advertised, although one side backs off further than the other, with exactly the same offset from the gantry to the switch on each side at the start, such that the gantry winds up being racked by about .25" after the Reference All.

In addition, although it (poorly) references the Y axis (gantry), there is no attempt to reference the X and Z axis.  What's with that??

14

General Mach Discussion / Trouble with limit/home config

« on: May 09, 2013, 01:47:03 AM »

My newly commissioned router is working pretty well.  The setup is PMDX-132 breakout board, Gecko 203V drivers, SmoothStepper/USB, and PMDX-107 spindle control.  I finally got around to adding limit switches and am having trouble configuring things.  I have a separate input (I know I don't need to) for X+, X-, Y+, Y- , A+, A-, and Z+ and have enabled both the limit and the home functions on X-, Y-, and Z+ and the limit for X+ and Y+.  The Hall effect limit switches all work fine.  The trouble is that when I hit the "Reference All" button, the machine references the Y axis, triggers the limit, backs off a bit, with the limit alarm still active requiring a Reset to clear.  End of referencing!  I cannot figure out how to get Mach to continue and reference the other axis.

I'm betting this is a simple issue, but so far I haven't tripped across the answer!

Help would be appreciated!

15

General Mach Discussion / Re: E-Stop latching??

« on: March 25, 2013, 02:59:47 AM »

So the definitive answer was that Mach has a configuration switch that turns on/off the charge pump during an e-stop.  The PMDX-126 uses absence, then presence of the charge pump waveform to infer the reset condition.  So I guess this is a newbie error...once I changed the configuration to "no charge pump during e-stop" it works as one would expect!

Thanks to all that helped...Steve in particular!

Joe

16

General Mach Discussion / Re: E-Stop latching??

« on: March 18, 2013, 06:11:41 PM »

I was headed in that direction....just disable the charge pump.

thanks for your help!

17

General Mach Discussion / Re: E-Stop latching??

« on: March 18, 2013, 05:15:54 PM »

Indeed!  I disabled the charge pump and the E-stop works as expected.  What gives??

I am running v 67...

18

General Mach Discussion / Re: E-Stop latching?? - XML

« on: March 18, 2013, 04:00:08 PM »

Here you go.  Based on your comment, I ran the same setup with the pro forma Mach3Mill XML profile and estop appears not to latch, so it would appear that there is something in here causing the problem, but I can't seem to find it!

19

General Mach Discussion / E-Stop latching??

« on: March 17, 2013, 09:02:00 PM »

I am trying to bring up a new CNC router and am using the PMDX-126 BOB, PMDX-134 motherboard w/G203V drivers, the USB SmoothStepper, and the PMDX-107 spindle controller.  Several E-stop switches are wired in series to the PMDX-134 and the function seems to work normally when Mach3 is not running (meaning the led on the BOB reflects the condition of any of the E-Stop switches), but when Mach3 is running, hitting E-stop causes Mach3 to shut everything down appropriately, but hitting the Reset button on the Mach3 screen doesn't clear the E-stop condition.  In fact, the led on the BOB stays lite regardless of whether or not you clear the switch (or hit the reset button on Mach3).  What is keeping it active??  Any suggestions would be much appreciated!