Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: longislandrim on August 03, 2010, 07:27:20 PM
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Part1 I am new to mach3. I have a cnc slant bed lathe i am retrofitting to polish auto wheels. According to to my cad program the x axis turns positive on the way up and negative on the way down. Is this correct?.
Part 2 A buffing head is attached to my toolpost. I have a logitrol cnc system. I am currently manually polishing wheels by jogging the pendant. With the pendant in hand if i toggle the joy stick up (the polishing head goes" up" as it should , Down as it should) However the dro indicate that as i move it" up" past zero i am going (-) negative . How do i fix this
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Yes. zero is on the centre line and all moves from there are positive as you move away, only time you should really be in a negative value on X is when you have moved past centre.
Possibly you need to reverse the X axis and then at the same time reverse the joystick(if thats possible as I have never had one). To see if this is the case move your X via the MDI line. For example if you are at X2 in the DRO do a MDI of G0X3 , it should move up the way, if it moves down then you need to reverse as above.
Hood
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Thank you Hood. You hit the nail on the head