Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: komar1970 on September 11, 2011, 09:05:35 PM
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hi I have question my machine has backlash on Y axis 0.012mm on X axis 0.014mm I cut a hole under Bearing 30mm everything is ok 29.95mm to 29.97mm dimensions
the part has to have dimension outside of 40mm x 40mm but has 40.38mm on Y axis and on X axis 40.60mm what's the problem?
I tried to set the machinery in different ways on 1/2 sherline , I tried to set the setup steps per unit but more worse comes out
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Do you have backlash enabled? If s disable and try again and see if that makes a difference, it could be its set wrong.
Hood
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I do not have enabled backlash. I try to switch on and see what will be I'll give you a message
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i have gecko driver g540 motors is 200
200 x driver 10 macro steps is 2000 % pinch 5mm give me 400 steps
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cut out with enabled backlash and it is the same on X AXIS is 40.65mm on Y axis 40.51mm
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setup
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setup
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ok if i go 400 steps on the distance 3'' or 76.2mm machine can not overcome this distance, missing distance is 0.18 mm I have to change the step to 401 then it is slightly more than 76.2mm . but if I increases the distance to 152.4 is 6'' is again a problem, step 401 is not enough I have to give 402 step and again the machine goes a little more
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Try setting a value of 5 or more for the pulse and dir on Motor tuning page. You may even need to use Sherline mode if that doesnt help.
Hood
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the problem was in the Velocity and Accel. I fixed it but it is still a small problem
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the parts is 40mm x 40mm inside hole 30mm
after i fix the big problem onli is problem with one X axis
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parts cut out dimensions 40mm Y axis hole 30mm and X axis 40.20mm only the X AXIS is problem
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Who will help me set this MACH3
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Are your steps per unit correct?
Hood
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i have ste to 400 and I lined up in a mach 3, but it's improved
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i fix the problem thanks hood for help is work perect if i cut 70mm x 40 hole 20mm is ok perfect size if i cut 40 x 30 hole 1 perfect if i cut 340mm x 140 hole 50mm smole proble it is 340.01 that is ok
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Glad to hear it :)
Hood