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Messages - ajfreeze

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General Mach Discussion / Re: Thumping motors.....
« on: March 10, 2013, 12:06:03 PM »
Busy day today, I will hopefully get you the xml file late--we have a gymnastics meet today.....thanks guys!

AJ

PS: Jim: the motors still thump even when not connected to the machine--checked that first.  They only thump when connected to the Pentium 4 machine.  But now with all the "optimization" I've done on the duo core, I've lost my A axis and can no longer jog at full speed (similar to the P4). This is getting painful.


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General Mach Discussion / Re: Thumping motors.....
« on: March 09, 2013, 03:58:22 PM »
Thanks Jim--have a great day.  I'll keep reading posts, and fiddling.  There has to be something.....

aj

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General Mach Discussion / Re: Thumping motors.....
« on: March 09, 2013, 03:42:42 PM »
I installed the special driver and have a pulse, but my situation is not any better (still thumping and no A motion).  I started the driver test, and it looks like I have a fairly stable signal, a little variation, but not bad.  Does that program actually run a test and give a result, or is it something I stare at and wonder if it's good enough?  ;D  Thanks for your input.--aj

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General Mach Discussion / Re: Thumping motors.....
« on: March 09, 2013, 03:15:59 PM »
Yup, I get good motion on one of the PCs, but then lose steps and my Z freezes--I can hear the other 2 hiccuping from time to as well . On the other PC, I have no pulse after optimizing and switching from ACPI to standard PC (step 9 of optimization guide).  Would like to get my pulse back, and my A motor turning on the Pentium 4, and put the other PC back in the house.

Thanks--aj

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General Mach Discussion / Thumping motors.....
« on: March 09, 2013, 01:37:57 PM »
I bought a complete Taig system to get into CNC.  I have a manual mill and lathe, but wanted to have a system that I could get up and running easily.  HA!  I had three out of 4 motors running within an hour of opening the boxes.....BUT:  I would jog them and they would thump if the pulse rate was, say 40%, at 100%, they would still thump, but would die.  And, the A axis wouldn't jog at all. To make a long story shorter.....talked to the place I got it from--thought it was a pulse problem with the computer (Pentium 4 2.8, 2gb RAM, video card with 128mb)--nothing else on the computer.  Tried the optimizing recs--ended up with no pulse at all. Did a system restore, got everything moving again (but still with thumps at slow speed, stalled motors at higher speeds).  Pulled another computer into the pic--duo core 3 GHz pentium with 4 gb ram, graphics video card, running, wait for it....Windows 7. Thought I was in the clear, smooth motion, A axis working fine.  It ran WAY BETTER--but eventually while running air cuts, my z axis would lose steps and stop moving. 

Next, bought a 2nd parallel port PCI card--installed it in the Pentium 4, disabled the onboard printer port--got the same results---thump, thump thump--all motors, (except still no A)  jog fast, the motor quits.  Tried the optimization--everything is off, usb, sound. When I switch it to standard PC from ACPI, it loses its pulse. I reinstalled mach and the the driver.  Still no pulse.  This is running off the extra PP running it as lpt1.

My options:

1. put windows XP on the duo core--would rather not--has 3 drives in it-would rather not have it in the garage.
2. get my pulse back on the P4--any suggestions?
3. get an ESS--would rather not--with my luck, can't imagine it would be a simple solution.


I'm hoping there is a simple rookie mistake here.....someone want to point towards the forest?  All I can see is trees.

Thank you in advance for any help.

AJ

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