Machsupport Forum
Mach Discussion => FAQs => Topic started by: Fritz on November 23, 2010, 03:50:05 PM
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Hi, recently purchased a cnc plasma table! Unfortunatly, i have had issues with it from the beggining! Initially it worked with a few minor adjustments. Now, when nothing was changed, its like it forgot what it was doing from the previous days. After i load the g-code, table moves at a real fast speed to its referencing point. As the program runs, the "z" axis wants to plunge below zero! We do not have any tech support with the table manufacturer. Trying to get movin on this...any input would be much appreciated....Fritz
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Can you attach the xml for your profile please, may be a config setting that is wrong.
Hood
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Im working on it, appreciate your help! Gonna send that to you soon!
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no problem.
Hood
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my xml
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Thats the Mach exe, its the xml for the profile you use that I need.
Hood
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Okay, have to run back to work to send it to you. I am fairly new to this, i apologize for any delays. I have been reading threw our manuals and playing with the table. The issue with the 'z' axis diving, seems to have resolved itself! Don't know how. Anyway, I would still appreciate if you were to have a look at my XML. My problem now is that the two stepper motors are out of sync, on my "y" axis. I tried referencing, the gantry moves in the opposite direction it should along with the motors grinding. I believe the grinding comes from too much travel speed. All of this stuff was working fine before , but not now! I'm gonna send that to you in a few hours. Again, thanks Hood!
Fritz
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Sounds like you may have the the acceleration and/or velocity set a bit high for your motors.
Hood
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how do i find it? What does it look like?
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how do i find it? What does it look like?
Are you meaning the xml or the Accel/Vel settings?
If xml then its in your main Mach3 folder and will have the name of the profile you are using. Windows may be hiding the extension so if you look at the top of a window click on the Tools menu then Folder options and then in the window that pops up click the View tab. you can the scroll down the list a bit and take the check out of the "Hide extensions for known file types"
That will let you see the extensions on all files in windows.
If you are meaning the accel/Vel settings, they are on the motor tuning page of Mach.
Hood
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Hey Hood! Actually made a cut on Friday. I cut out an octagon.Still having the issue of when i reference the "y" axis. It is still moving to the opposite end of the table to reference. Still have to fix it. Also, on Friday, I had to turn down the feedrate percentages down on the program run screen for mach3. This is after the optimum travel has been set along with the arc voltage. Thanks, Fritz
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You can reverse the homing direction by changing the home negative setting for the Y, you will get it from Config menu then Homing and Limits.
Hood
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Cut an octagon on Friday! Cut was nice! However, i had to turn the feedrate down on the mach3 program run screen. This is after i set the optimum travel speed and set the correct arc voltage. Also, gantry still wants to travel to the opposite end of the table after the "y" axis is referenced. The 2 stepper motors start grinding and the carriage doesn't want to move! On the octagon, all the vertical (y axis) cuts have a rigid finish. Seem to have a racking problem. It is supposed to correct itself after referencing but doesn't! Thanks, Fritz
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Hey Hood! my issue now is the "y" axis motors (stepper) they are making a grinding noise when i move the gantry w/ the hotkeys or when i reference. Any ideas?
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I did adjust the homing like you said and still moves in the wrong direction.
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Hey Hood! Still with the issue of the wrong direction when i reference. I went ahead and adjusted the settingsl like you suggested. Still not working.
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Ok can you attach your xml and also tell me the position of your home switches.
Hood