Ok, ill do my best to explain.... The CNC machine i have built, "gantry" (y axis) and also the X Axis Rails are slightly sqew.
If i jog either the X axis or the Y Axis independenty in a straight line, the line is not true... Meaning that if you use the edge of the table as a guide reference for either X or Y axis to travel along,
the travel of either Axis does not run true to the edge of the table..
For example.. If i place my cutter on the home position in the bottom left of the corner of the table (0,0,0) and then use the edge of the table as a reference along the X axis, i would like the cutter to run parallel with the edge of the table.. without deviating in the Y direction.
At the moment i put the cutter in the homing position (bottom left corner, 0,0,0) and then jog the cutter along the X Axis for 300mm and it ends up slightly bias to the right about 3mm i have the same problem with the Y axis also, only the bias numeral is different.
I am not taking apart the machine to fix the issue. Thats crazy.
The most enlightening piece of information i have so far is here..
http://www.cnczone.com/forums/mach-software-artsoft-software-/82179-squaring-x-y-axis-mach-3-a.htmlBut i am unsure how to write the formula.
Anyone any ideas?
Cheers