Messages

11

Mach3 under Vista / Uneven Spindle pulsing during Axis movement

« on: May 27, 2011, 03:46:25 AM »

Hello,
I have a problem running foamcutter (4 motors) on Win7. We are using Spindle output for wire temperature (using just step signal on pin 14, as we have F2V converter after it). What happens is strange, when we set the temp, we get proper pulsing on Pin14 and the wire temp is constant. When we move the axis manually or by G-Code, pulsing becomes uneven and the wires become under heated.
Is there any easy solution for this issue, maybe some missed config or so... Please help

Thanks in advance.

12

General Mach Discussion / Re: Weird PC Freezing Issue

« on: December 19, 2010, 12:10:18 PM »

...but I know many others have W7 so not sure why yours had problems...

Hood

That's still confusing me, as we also have few machines delivered with lic win7 that are running OK. Truly, not with same config... So I think that problem is definitely related to the certain onboard LPT - win7

13

General Mach Discussion / Re: Weird PC Freezing Issue

« on: December 19, 2010, 07:09:18 AM »

After event monitor find out a lot of problems, I was trying to repair Win7, which didn't help. Now it runs on XP for few days with no problem. So I can say that the problem was probably in the way of controlling LPT by win7 driver or so.

Cheers

14

General Mach Discussion / Re: Weird PC Freezing Issue

« on: December 14, 2010, 02:06:15 PM »

So: set kernel to 25KHz, check for bios power savers and sit back and observe...
...Working almost all day with everything OK, then freezes in the middle of the job. I took a closer look at the event monitor, and saw that it reported system reboot without shut down at the time it actually freezes. The only useful thing that I can do (am doing now) is to upgrade to XP :-( and see if problem will disappear.

Will keep reporting.

15

General Mach Discussion / Re: Weird PC Freezing Issue

« on: December 13, 2010, 06:11:44 AM »

None of this incidentally explains a random move. The driver is pretty much
incapable of it, it canot move unless commanded, and it takes quite a sequence
normally to command it. Youd have a better chance of winning a lottery than
getting uncommanded motion.....unexpected..yes. , that happens to all of us..
usually at our unknown request, but uncommanded...near impossible in the drivers
context.

Actually, there is no random move. The weird thing is that after few (5-25) seconds of being freezed, the program continues executing normally as nothing bad happened. This is problem because spindle starts accelerating through material, and work zero is moved. Shouldn't watchdog be activated in this case and reset the engine?

I have installed a new LD (there was R3.042.020 earlier) and set kernel at 25KHz. Here is the situation:

- Time in interupt was 2.5-12, now stays unchanged.
- Pulse Freq was 38.5-45KHz, now is 22-25.1.
- Buffer was around 20%, now is 13% (Look ahead set to 500)

There is one more thing I have discovered: When I tried to backup xml, I have noticed that it doesn't contain soft limit parameters, but in Mach it looks like set properly. At the profile line, name of correct xml is shown. But when I open it using Notepad, I can see that it contains different values. Off course the same wrong values are seen in the new Mach when I pasted this xml. In Mach3 folder, there is no xml file with fresh modify date which confuses me more and more???


Cheers

16

General Mach Discussion / Re: Weird PC Freezing Issue

« on: December 12, 2010, 06:30:09 PM »

Thanks a lot fellas,
I'll try this in the morning and see what will happen.

Cheers

17

General Mach Discussion / Re: Weird PC Freezing Issue

« on: December 12, 2010, 02:56:25 PM »

Thanks Hood,
I am using parallel port (got a lot of headache to find configuration with onboard LPT). Kernel in Mach is set to 45KHz. Here is the .xml, but I doubt that it is causing the issue. I will try to add extra RAM or graphic card tomorrow to see is there any changes.

Cheers

18

General Mach Discussion / Weird PC Freezing Issue

« on: December 12, 2010, 08:47:21 AM »

Hello guys,
Before starting this topic, I have read all similar posts, but couldn't find the answer so I have to ask for help here.

Machine (brand new) was working for about 5 days and after that, during rest machining PC suddenly freezes (axis, spindle) and I couldn't move mouse or hit Stop/Reset... After 10-20 sec, the PC unfreezes, Spindle starts spinning up and G-Code continue executing normally. Than I was able to hit feedhold (pause), but machine stops after 5-6 sec. Also, I have noticed that Machine looses its coordinates for few mm each. After that the same issue happens randomly with different tools, codes, but at the same way.

Also this one thing might be helpful in finding the cure: when jogging at rapid (12m/min) w/o G-Code loaded, it runs smoothly, but with G-Code loaded it sometimes shakes a little, like it got uneven pulse train for a while. Bridge is over 200Kg weight, driven by AC Servo, which makes very unpleasant behavior.

The PC is brand new, with the following config:

Intel Celeron, Dual Core E3400 2.6GHz
1GB DDR2 RAM
GigaByte GA-G41M-ES2L rev1.1
Win7 Starter

Any hint will be helpful.

Cheers

19

VB and the development of wizards / Re: Automatic G28 after, initial Reset and homing for your use

« on: December 25, 2009, 09:30:45 AM »

Is it possible to change a little bit this macro so it perform an automatic "reference all axis" after initial reset, and if any of axes is unreferenced? I have tried some changes, but couldn't manage it to works :-(

Cheers

20

General Mach Discussion / Re: Homing 2 slave axis with different offsets

« on: September 30, 2008, 04:16:11 AM »

I was thinking if it's possible to activate slaving in ref button script during homing, than after homing to deactivate it, apply offsets, send axis to zero and then activate slaving again before exiting script?
Does anyone know would this be helpful? The only question is is there such a command for activation/deactivation of slaving?

Regards,
Dejan