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Messages - k80user

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1
General Mach Discussion / Re: A axis kaput
« on: March 21, 2017, 12:43:29 PM »
Okay, thanks!  Must be the drive electronics...

2
General Mach Discussion / Re: A axis kaput
« on: March 20, 2017, 12:05:01 PM »
What I meant was that I can switch the cables to the motors and both motors work when connected to the Y drive and neither work when connected to the A drive.  My original question goes unanswered: from the diagnostic page (window) when I signal Y axis movement, are the numbers for the A axis supposed to change as well??

3
General Mach Discussion / A axis kaput
« on: March 19, 2017, 08:28:30 PM »
Okay, I built my cnc router 6 years ago and it has worked perfectly...until today!  So now I have to relearn everything over to troubleshoot.  My A axis, slaved to the Y, seems to be dead.  I can switch Y and A cables and the gantry runs from whichever side I plug into the Y axis port, so I inclined to look at the electronics.  Before I tear into the whole drive wiring I did notice something that might be perfectly normal, but odd.  When I go to the diagnostics page and try to reference the Y axis, the numbers don't change for the A axis.  Are they supposed to??  Likewise, when I "unslave A from Y and try to reference the A axis...nothing.  Seems like it should be moving like the rest do???

4
General Mach Discussion / Re: vacuum control
« on: May 28, 2013, 01:21:55 PM »
Okay, back to this problem this morning:

(1) The relay output on the breakout board used to trigger the high voltage (2520vac) load for the dust collector already had a MOV across the terminals, so I didn't go down that path.

(2) Moving the wires around such that there was zero overlap between the coil wires and the limit switch wires resulted in no change.  Wasn't sure what to expect there anyway since the limit switches are hall effect relays.  Not sure what an induced pulse would have caused there.

(3) But...the power supply for the coil is 12vdc unregulated.  The power supply for the limit switches is 5vdc regulated, from the same break out board.  Since I was using USB-SS, I added 5 usec of debounce to the limit switches and bingo, problem solved.  I guess switching off the coil has some impact on the 5vdc supply to the limit switches?? 

Thanks to all who pointed me in this direction!!

5
General Mach Discussion / Re: vacuum control
« on: May 23, 2013, 11:25:22 AM »
I'll investigate that, but wouldn't the surge you are referring to actually be a result of turning ON the dust collector vacuum when there is almost certainly some inrush current above the operating load?  Or at least you would expect one when you turn it on as well as off.

And if that were the case, wouldn't the diagnostic page show one of the limit switches tripped?  Or is that display real-time (meaning the blip wouldn't be noticed)??

6
General Mach Discussion / vacuum control
« on: May 23, 2013, 12:22:51 AM »
I want to use the spindle relay to control my vacuum. Enabled it, changed the default output to "1", enabled Output #1, hooked that to a relay and it works....mostly!  M3 turns on the spindle and the vac.  M5 shuts them both off, but...it also results in a "limit switch activated", requiring a reset, even though none of the axis are anywhere near a limit switch.  If I redo the whole thing using M7/M9, I get the same result.  Looking at the diagnostic page, nothing is showing.  Anyone have a quick answer??


7
General Mach Discussion / Re: Trouble with limit/home config
« on: May 11, 2013, 09:02:25 PM »
Version 062 works as expected.  Guess I'll stick with that until I find something there that is broken and needed!

thanks for your help...


fyi...this is the second time I have posted this.  The first version seems to have disappeared!


8
General Mach Discussion / Re: Trouble with limit/home config
« on: May 10, 2013, 02:19:51 PM »
One would think something as fundamental as referencing would be made to work in all releases.  I am using 066...

9
General Mach Discussion / Re: Trouble with limit/home config
« on: May 10, 2013, 01:58:51 PM »
One or the other, not sure which!  What version do you recommend??

10
General Mach Discussion / Re: Trouble with limit/home config
« on: May 10, 2013, 01:29:44 PM »
I changed the Z Home.  All three axis reference okay from the Diagnostic page, although the Y and A motors back off different amounts for some reason, racking the gantry.  I changed sensors there to no avail.  But the main problem is that only the Y axis references when you hit th Reference All button.  I opened the Reference All button with Edit Button Script and get,

DoButton( 24 )
DoButton( 23 )
DoButton( 22 )
DoButton( 25 )

DoOEMButton(133)
DoOEMButton(134)
DoOEMButton(135)

Not sure which DoButton does what, nor how to look at the DoButton() code!

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