Hi, I am new to Mach3 and to CNC machining, but love doing this stuff. I have a Sherline lathe with a Soigeneris controller. I draw in Rhino, and use BobCAD's CAM to set up my g-code. I have Smid's CNC Programming book on order and hope to be writing my own g-code soon. (By the way if you can recommend a good g-code tutorial that has demo programs please let me know). That out of the way, my question is:
BobCAD created a g-code program for me using canned cycles that is supposed to turn a piece of aluminum (or delrin) to size, cut two grooves in it and then cut it off. The program looks fine in BobCADs simulator. When I import the g-code into Mach3 I get a message saying "G96 error no S code". When I go back and make sure the CSS option is turned off I get "G97 error no S code". Since I have a Sherline mill with no spindle controls I don't want a G96 or G97 to show up, but if it does why is there no S code? I am not clear is this is a BobCAD issue, an issue with the post-processor or an issue with Mach3. Can you advise? I am also asking BobCAD about this. Thanks, FA.