On Saturday 13 February 2016 04:18:28 Gregg Eshelman wrote: > Is there a program, preferably for Windows, that can read a G-code > file and make an altered copy to produce a file that will produce a > mirror image of the original? > > I've done one that took quite a lot of work to get right, now I need > the code to cut the same part for the other side of the car. > In gcode, if Y=0 goes down the centerline, or can be adjusted to make it so, its pretty easy using the editors search & replace. ake a 2nd copy of the file, calling it the other side.
Then If the Y is always followed by the # sign beginning a variable reference, then search for Y# in the second copy of the file, and replace it with a Y-#. Or for some part like a door handle, just negate as above, all the Y values. If Y values are present in both polarities, you'll need to use a dummy axis for a temporary scratchpad, like swapping all the Y# to W#, then swap the Y-# to Y#, then swap the W# to Y-#, which will mirror it about the Y=0 centerline. I have used this general idea quite a few times to fix pcb-gcode outputs where the mirror for the double sided pcb was mirrored along the wrong axis. That, and using 2 different co-ordinate maps to offset the length of the board, thereby resulting in thru holes drilled 55% of the way thru the board on one side, meeting perfectly, the same hole drilled 55% of the way thru the board from the other side when making a double sided pcb. pcb-gcode's docs could be a bit clearer in describing what an option does, and it took quite a few repeats to get it down to just the co-ordinate mapping needed to offset the mirrors width. HTH, Gregg. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
