On 03/12/2016 02:05 PM, Gene Heskett wrote: > On Saturday 12 March 2016 14:39:26 John Thornton wrote: > >> The 80's are here http://linuxcnc.org/docs/2.7/html/gcode/g-code.html >> >> The 70's are lathe turning cycles. >> G70: Finishing Cycle >> G71: Rough Turning Cycle >> G72: Rough Facing Cycle >> G73: Pattern Repeating Cycle >> >> http://www.cnccookbook.com/CCCNCGCodeG71RoughTurning.htm >> >> JT > Thanks John, probably not that useful to me because even with a 1 horse > in the motor brackets of my toy lathe, other drive train fragility > prevents doing a heavy roughing cuts at any radius of more than 1/2". > But you all knew that. I do intend to "fix" that at some point, probably > by starting over with a machine that weighs 10 times what this piece of > rubber framed toy weighs. But I need to stumble over a /good/ buy, and > haven't managed to do that yet. > > But for folks with real machinery, yes absolutely. > > Not for Real Machinery only. G70, 71, and 72 are useful for the hobbyist and almost a necessity for the full time user. Just because it says roughing does not mean high HP, it is an incrementing and repeating canned cycle. In a way it is simular to G76 thread cutting as it repeatingly cuts deeper on every pass. If this can be implemented on a single line it would make LCNC more attractive for retrofits on older hardware.
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