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Messages - highpockets

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11
General Mach Discussion / Re: Restarting mid way in a run
« on: April 07, 2015, 09:37:29 AM »
In the lower left corner of the Program Run screen there's a button Set Next Line and Run From Here.

In the G-code window scroll down to line 12000 or type 12000 in the Line window and press enter, then click Set Next Line and click Run From Here. Follow the prompts in the Status window.

Word of warning choose you're restart point carefully, I'm new to this CNC stuff also and I've selected the wrong line and had the bit dragged across the material on it's way to the start point.

I'm sure there's a way to prevent this, but I've not had time to play with it....

Nice carving!!!!

12
General Mach Discussion / Z axis Home?
« on: April 04, 2015, 04:08:23 PM »
I have my new CNC router up and running, it's a PDJ 2626 running Mach3.
I have ref home on X and Y working just as they should, but Z is another story. If I turn on Z Home in Port & Pins Inputs when I click on Ref All Home the Z axis goes down instead of up. If I reverse the motor then it zeros to the top but in operation the Z axis moves in the wrong direction. I've tried every setting I can think of I'm just missing something and need help....

Here are my configuration settings.





13
General Mach Discussion / Re: UPS Power Backup
« on: March 31, 2015, 02:34:50 PM »
Don't know why I can't show both pictures in one posting.


14
General Mach Discussion / UPS Power Backup
« on: March 31, 2015, 02:30:54 PM »
I've read through past posts about handling power glitches and outages some options seemed a bit complicated to me.

I've come up with a very simple solution to the UPS Backup issue that also takes care of the spindle.

Use a UPS backup to take care of the computer and control box. To prevent the Mach3 from continuing to run if the power goes out and the spindle isn't running I'm going to use a 12V transformer AC/DC converter plugged into a surge protected only outlet on the UPS. The transformer will be hooked to the coil of a normally open relay. The normally open switch of the relay will be in series with the other estop switches. When power is lost the relay will de-energize releasing the switch to open causing a estop in Mach3. To prevent very short power glitches from causing an estop you put a capacitor on the relay coil to hold it up for a brief time after power is lost (the 12V transformer I used has a built in capacitor that holds the relay up for about a second and a half). If power comes back before the capacitor bleeds down then the relay doesn't de-energize. See the attached schematic.




15
Oh, one more thing that was driving me nuts, sometimes my ports would work and then other times not.

I discovered the power to the board was not plugged in good and was causing a intermittent open.

There should be two red LEDs lit on the board.

16
I'm just setting up my mach3 interface so I could be way off on this, but....

I just configured my e-stop and limit switches. The switches on mine are all normally closed except z home which uses the touch plate.

All my switches are connected to the breakout board through the DB9 connection that tie to the breakout board. E-Stop is pin 1 and 9 on the DB9 I have all the limits and homes (except z-) wired in series and tied to pin 8 and 9 on the DB9. z- is hooked to pin 7 and 9 on the DB9.

Hope this helps some.
If you need the wiring from the DB9 to the breakout board let me know, I'll trace them out.

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