On Thursday 08 August 2013 22:24:40 Troy Jacobson did opine: > Would you need two Y fudge factors, one for the front and one for the > back? > Yes, according to my thinking. One of them is the found figure plus the #<yfudge> but generally within a thou of 0.00000 for the found figure.
> What's the distance between the top and bottom of the pocket 1.383" > and how > does that distance get incorporated into the flip/rotate calculations? #<boffset> contains that variable. Hard coded near the top of the file. And one of my clues that 1.383 doesn't work at all well, tells me I probably have the wrong sign for #<yfudge> when I add it to #101. First test tomorrow will check that. > On Thu, Aug 8, 2013 at 7:55 PM, Gene Heskett <[email protected]> wrote: > > On Thursday 08 August 2013 20:31:24 jeremy youngs did opine: > > > why not just shift g 56? i do this all the time to match moldlines > > > etc , i think that the simplest solution is often best > > > > That is what I am doing, basically locating to within a few ten thou > > of an inch, a supposedly known place on the pallet, then, using the > > fudge factors defined, offsetting the X0,Y0 to the right & toward me > > enough to put that 0,0 point either at the exact corner of the board, > > or offset a bit (another 50 thou was the target) more because one row > > of holes is a bit close to the edge of the board. This is done in > > g54 mode, then the top machining is done in G55 with those offsets > > applied, and the pattern rotated by the trailing R270 in > > these two lines: > > > > G10 L2 P2 x#100 y-#101 R270( offset G55 co-ordinates & rotate) > > G10 L2 P3 y[#101 - #<boffset>] x#100 R270 ( set G56 to be used for > > bottom machining too ) > > > > Humm, should that 2nd line look more like this? > > G10 L2 P3 x#100 y-[#101 + #<boffset>] R270 > > > > And what difference would it make to change the argument order? > > I'll do that once to test tomorrow because the boffset is off about 2x > > the #101 value to get close. > > > > And do I have to set the offsets, then run the machine to 0,0 in the > > new map before issuing the R270 as a separate command. I am not > > doing that now. > > Thanks Troy. Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> is up! My views <http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml> The inclusion of any link does not imply endorsement of the site. A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. ------------------------------------------------------------------------------ Get 100% visibility into Java/.NET code with AppDynamics Lite! It's a free troubleshooting tool designed for production. Get down to code-level detail for bottlenecks, with <2% overhead. Download for free and get started troubleshooting in minutes. http://pubads.g.doubleclick.net/gampad/clk?id=48897031&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
