[rfresh737]

I've been hand coding Circles and Arcs for awhile. I've come across an Arc that gives me an error and I can't figure out why.

I've manually debugged this Arc on a paper graph and the G02 line seems to be OK. The center x,y is 116.06,106.15

I've doubled checked the start and end x,y points in my CAD program.

Attached is what the Arc looks like in relation to the other drawing objects.

So am I losing my mind and can't see an obvious error on my part?

G90 ( absolute positioning )
G21 ( units: mm )
G01 X000.0 Y000.0 F6400 ( home )


G01 X120.91 Y107.36 F6400 (laser head positioning )
M03 S255 ( power on )
G02 X117.78 Y101.45 I-004.85 J-001.21 F110 ( arc0004 radius005.00 )
M05 S0 ( power off )


G01 X000.0 Y000.0 F6400 ( home )
M30 ( end of program )

[rfresh737]

Solved! The problem turned out to be precision. I was using 2 place precision in my gcode and when I went to 3 places, it worked. I don't quite understand why that made a difference but it did.