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Messages - rbjem

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General Mach Discussion / Re: New computer = weird problems
« on: February 02, 2012, 01:34:55 PM »
Just an update: 

I reinstalled Mach3  to the version I was using before.  Didnt work

I installed a PCI PP card that I use to run my mini-mill on another computer.  Didnt work

I put back the old comuter (with a fresh XP and the lockdown version of Mach3, which unfortunatley, I am unable to check with my original install that I know worked correctly). Didnt work.

 >:( >:( >:(

I will check voltages now...

General Mach Discussion / Re: New computer = weird problems
« on: February 02, 2012, 11:25:37 AM »
Also, all of my home switches (X,Y,Z,A) do it, I only used the Z to illustrate what was going on. 

The vid just shows the LED on the diagnostics screen jittering, I jog the Z so the home is on, then off, then on.  Then do the same while looking in the control box.  There's no contacts, so they shouldnt be "dirty", and I am fairly certain that the voltage is sufficient. The last time I checked the switches were seeing ~13V which was about a month ago, but I will check again.

Thanks for the replies, they are giving me new ideas to investigate. 

General Mach Discussion / Re: New computer = weird problems
« on: February 02, 2012, 10:58:45 AM »
and did you try the older version of Mach?
Could your BOB require 5v and your new PP is 3.3v?

Hmm, this is an older PC (~6 years old), so I am leaning away from it using 3.3V, but ill check it with my multimeter. I will try the older version later today as well. 

You probably wouldn't see your BOB LED flashing because it'll be too quick. The "LEDs" on the screen are only updated 10 times/sec so you're kind of seeing a slow motion version of reality. Trust Mach - if they're flashing (which they are) then the signal IS intermittent. In fact if you look at your vid when you look at the BOB LED you CAN actually see it flash once when you jog onto your switch which if all was well it wouldn't do. I reckon your on the bounce point of your switch. Debounce of any value is not going to help if your switch is constantly bouncing. What happens if you jog up just a tad more onto the switch? does your screen LED settle? I'm gessing it's NOT noise otherwise your on screen LEDs would flash even when you were miles away from the switch.

That did cross my mind, but when I jog higher up on the switch it does not settle down.  Im just confused since it worked as it should two days ago, and now there's problems.  All I did was plug the parallel cable into a different computer. 

I'm hoping a reinstall fixes it. If not, I may try a PCI parallel port card I have in another computer and see if its the new motherboard causing the issue. 

General Mach Discussion / Re: New computer = weird problems
« on: February 02, 2012, 03:13:23 AM »
I have not touched any wires.

General Mach Discussion / New computer = weird problems
« on: February 02, 2012, 01:39:25 AM »
My limit/home switches are acting very bizarre.   I have been struggling with this issue for half the day, doing searches, tweaking, testing, repeat but no luck.

I bought a new (to me) computer today and formatted the HDD and installed XP Pro, drivers and Mach3 R3.043.022 lockdown version. I did this because my old computer would freeze every so often (no bluescreen, just completely lock up) and it got to the point where I couldnt handle it anymore.  I have set the parallel port in the bios to EPP mode.

I am using a different Mach3 version, (I was previously on R3.042.040) but am using the same .xml config file.  I am using hall sensor switches and my BOB is from candcnc using their table IO board.

The problem is that the LEDs on the diagnostics screen are showing my home switches going off and on sporadically which is causing limits to trigger when I home it.  My BOB is showing a constant signal, but the diagnostics screen is definitely not showing that.  I have made a video to show what is happening (I disabled limits for this).


My original configuration had debounce values at 25 with no problems, and I have incrementally tried up to 10,000 but nothing solved the underlying issue. 

Does anyone have any idea what could be causing this problem?  I will reinstall Mach3 tomorrow unless someone has a better idea.


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