Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: ekocakaya on October 20, 2007, 04:34:37 AM
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Dear Friends I am using Mach 3 v1.98 and I have 8NM Nema 34 Motors.My power supply is 65V and I am using Leadshine microstep drivers , my leadscrew is 5mm/turn.I set up my driver to 800 microstep.
In Motor tuning screen I adjust
160
velocity : 3000 mm
250mm s/s
and pulse time 5
when I move the motor 20 cm then I starts freezing and lose steps.I use Driver test program but I dont know how should it look?
my computer p4 3.0 512 mb ram 256 mb X550 graphic card.
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Lower your veloc. and accel. Keep going lower until it runs good then back off some more to allow for tool load.
Brett
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I lower my velocity to 500mm but it still freezing and stalling.I used another program (WINPC-NC Demo) to test it.With this program I can go 6.000mm per/minute.What Should I do in the program? and What should I see in driver test program? Normally time in internal is between 4-5 .While I am jogging time in internal change to 4-16 .is it problem?
Thanks for your interest
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Your drive test is terrible, you should see a smooth line with maybe a slight ripple or the occasional peak but nothing like you are seeing.
Do the optimisation and see if that helps. The instructions for Optimisation can be found at the bottom of the downloads page.
Hood
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This is more like what you should be seeing in the driver test.
Hood
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Also just noticed your drive test says Quantum, thought you were using Mach3?
Hood
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Yes I know its quantum test program but I used the mach3 test program.the results are same.the ACPI still turned on can it cause this problem? What should I do? When I jogging the motor starts turning after a while , the motor sounds change( in this time motor still turning) then motor freeze.what cause it?
Also I tried this in another pentium 4 1.6 256mb ram pc .When I start driver test program there is instant peaks occurs sometimes.is it problem?
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You need to do the optimisation steps that I mentioned two or three posts back. That should help with your problem.
Not sure what you are meaning about the driver test on the P4 computer. Are you saying it is just the occasional peak or are you saying it is constant peaks like your other computer?
Hood
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I have also p4 computer.I installed the mach3 and run the drivertest software.In the driver test screen sometimes (occasional) very big peaks occurs like the picture.The picture is not real I draw the peak in paint to show how is peak.is it problem or related with this freeze? What do you think?
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The screen should look like the one I posted, if it is much worse than mine then you have problems.
Have a look at the optimisation file and do the steps it says, it should help you.
Hood
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what is your pc model ? cpu ram ?
Thank you very much for your interest
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I have run Mach 2 and 3 on various computers from P3 450s upwards. Presently my mill and lathe are both running nForce 2 mobos (NF7S & AN7) with XP2500+ mobile CPUs.
Hood
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I have a brewington driver that is similar to the hobbycnc, and I had to check the sherline 1/2 pulse mode in mach3 where it worked fine without it in mach2.
Tom
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Dear Friends,
I did everything in optimization file.But I have same problems my new drivertest results below. As you see there is big peak every 4 or 5 seconds.Please help me what should I do?
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Do you have any programmes running, Quick time is notoriously bad for messing with the Mach pulse engine.
Hood
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No, I format my computer newly and only install mach2 .I cant solve this problem.Where is the problem do you think? I looked with oscilascope but it seems everything ok but when I start jogging or use G0 command .It turns for a while then the motor sounds change.then it freeze.I saved its turn to video with my cell phone camera.I will post it tomorrow.
I downloaded WINPC-NC Eco software demo then make same configuration 6000 mm/min ramp 400ms and it turns very good.I compared their osilascope screens .They looks like same.
MAch3 is the best program for pc cnc and I am waiting solve this problem to use it.But this problem will kill me .
Like an interrupt it accours every 4-5 second and motor freeze.
Any Idea to solve this problem
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I dont really know what next to suggest other than to remove the driver and reinstall Mach again. It soulds like there is something on your computer that is interfering with the driver but as you have said its a clean drive so it cant be software. Maybe there is some part of the hardware thats not liking Mach, do you have another computer that you can test Mach on to see if the problem still occurrs?
Hopefully someone else can jump in with a suggestion.
Hood
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What is this for a computer! This looks like a Laptop computer and you need to have a look at the Optimization Guid here:
http://www.machsupport.com/optimisation%20XP.txt
If that is no help I think you need to get a Desktop computer to run your machine ...
Thanks
Brian
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dear brian,
This is desktop computer pentium 4 core duo2 1 gb ram 2.6ghz desktop pc.I also have pentium 3 933 pc.I tried the software both of them.I format my pc and only build mach3 but still this stalling occurs.when I jog it turns for 4 or 5 seconds then it freezes.what is the problem do you think? I did everything in the optimization file that you sent me
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Are you using a wireless network on this PC?
Brett
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No ,this computer is only connected to my drivers.No network or no software is installed on that pc.
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Have a look in the Bios and see if you can find and power settings and turn them off... also is this onboard Video??? If it is put in a video card and see if that helps.
Thanks
Brian
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Hi, I just want to jump in here to inquire if there turned out to be a solution to this issue.
The reason is it sounds very similar to my own. I don't know much about this software, or even the machine I have as I purchased it used. It is a Mill/Drill with a rotary table. It was running on Turbocnc, but the person whom I purchased it from had changed his new unit over to the Mach software. So I downloaded the trial and liked the way it worked so purchased the license today and downloaded the R2.56 VERSION of the software and upgraded the previous version I had ( not sure of the version) and now I have issues jogging and running files.
It is basically the same as is being described here. The axis runs for about 4 to 5 seconds and then chatters abit and stalls, if I reverse the direction it seems to be fineagain for the 4 or 5 seconds. Now prior to the new download and the license activation I could jog the full x and y travel of the machine with no problems. I will keep following this tread to see if anyone finds a cure.
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Just an update from some checking this morning.
It seems only my X and Y axis are affected by the issue. My 4th axis works fine on both jog and highspeed jog ( ie: home and end button, or SHIFT HOME AND END) As well I checked my Z axis and it is working fine as well.
I have tried changing the "config" "motor tuning" files and although this changes the motor speed it does not change the stall problem. I have also checked for soft limits, again all seems in order.
As well I reverted back to ver 1.84 and no change.
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Just to update my situation.
My problem turned out to be the motor speed, and I had to "uncheck" the Sherline box in my settings.
Once this was done every thing seems to work fine.
I did a pencil run on one of my drawings and it worked flawlessly.