why do you need a helper program :) (worm cnc prog) (cnc preamble) G20 (set inches) G64 (?) G90 (set absolute) G94 (set inches per min) (bog standard milled screw, no attempt at correction)
#<turns>=5 (number of turns in screw) #<turn_angle>=[360 * #<turns>] (set rotation degrees) #<pitch>=[1/20] ( 1/tpi) #<depth>=.100 #<cut>=[#<pitch> * #<turns>] G0 X0 Y0 Z0 (move cutter centerline lowest point in line with axis and touch off) G0 F1 A-5 (rotate blank back to start+1) G0 F1 A0 (rotate blank to draw center line) G1 F.2 X0 Y[0-#<depth>] Z0 A0 (move cutter to depth) G1 F.01 x0 Y[0-#<depth>] Z#<cut> A#<turn_angle> (rotate blank 7 turns) G1 F1 X0 Y0 Z#<cut> A#<turn_angle> (move cutter out) G0 A0 (rotate blank back to start) (return cutter to start pos) M30 (stop program) this was a quicky I did a few years ago http://www.youtube.com/watch?v=Jbp8SJ9RxqI in the video I have leaned the worm over to make sure no flank undercutting occurs and the code is from before I added the 5th axis so the tilt and modificatrion to pitch needed is missing from the gcode Dave Caroline (archivist) On Sat, Mar 12, 2011 at 11:49 AM, Roland Jollivet <[email protected]> wrote: > I have seen thread milling, and while a great idea, I thought the code > generation might keep many away from pursuing it. > > I stumbled upon this excellent freebie from Korloy to generate the G-code. > Looks like windows only though.... > > http://www.korloy.com/korloy_en/contents/product/08.html > > > Regards > Roland > ------------------------------------------------------------------------------ > Colocation vs. Managed Hosting > A question and answer guide to determining the best fit > for your organization - today and in the future. > http://p.sf.net/sfu/internap-sfd2d > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
