Thread: mach3 gcode.. am i cracking up?
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16-05-2018 #1
Hi all
hope you are all well
simple sanity question, in mach3.. under MDI
I type G0 Y10
AND THE Y AXIS MOVES TO POSITION 10, 10MM (MACHINE MOVES CORRECTLY AND MACH DRO READS 10)
I TYPE G0 Y0
AND Y MOVES BACK TO POSITION 0 SAME AS ABOVE APPLIES
I DO THE SAME WITH Z (STARTING FROM 0 DRO ALSO 0)
G0 Z10 - AND Z MOVES TO 22.92 AND THE DRO REFLECTS THAT
THEN G0 Z0 AND IT MOVES TO 12.92
I HAVE MACH3 UNITS PROFILE SET TO MM
IF IT MAKES ANY DIFFERENCE I AM IN THE PLASMA PROFILE
ANY HELP GRATELY APPRECIATED
(IF I JOG THE Z (OBVIOUSLY NOT VERY ACCURATELY) BUT 1.0MM ON DRO IS 1MM PHYSICAL ON Z
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17-05-2018 #2
Did you home the axis first? Is Z0 at the top? If so all moves need to be negative so G0 Z-10 should move 10mm down.
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17-05-2018 #3
Have you checked that you don't have a scaling factor set on the rogue axis?
You think that's too expensive? You're not a Model Engineer are you? :D
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19-05-2018 #4
Looks like there's some kind of offset being applied to the Z axis.
Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
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19-05-2018 #5
Just a little possibility to throw into the soup - I once was trying to calibrate/tune the axis and got asymmetrical offsets positive and negative - took me a while to realise the column was at the limits of its travel (I only have home switches at the top of the column)
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