Or is there something else I'm overlooking? Please let me know what y'all think as changing parameters is not my favorite thing - seems dangerous. The C axis really is parallel to the Z axis so maybe changing this parameter would make all consistent. The C axis setting looks odd as maybe it should be set to 7 (Axis parallel to Z axis) so that the control isn't trying to translate a G2 ZC command into an X axis travel per that parameter. Here's my guess but I'd like considered opinion: I don't think the control really cares about G18 when it's doing linear commands because I can execute a three dimensional XZC G1 command. So, the linear ZC commands work but as soon as the control reads the G2 ZC command it throws an error. ![]() Just for background, trying to command G17 or G19 throws a "28 Illegal Plane Selected." So, G18 would seem to be the plane to stick with and most of the references I've seen indicate G18 is for "ZC" plane. Once I get into the G7.1 mode I can execute G1 linear movement with no problem but the control throws an error "21 Illegal Plane Axis Commanded" as soon as it reads one of my G2 blocks. G18 is the default plane of operation for this machine. ![]() ![]() I have a Fanuc 0i Mate TB gang tool lathe with full C-axis capability and I'm running into a problem coding up some circular interpolation codes (G02) within the G7.1 cylindrical interpolation mode.
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