On Friday 28 December 2018 07:09:25 Gene Heskett wrote: > Greetings all; > > I've installled that in a modified config I'll drive this 6040 with, > but I'm surprised to see it using the machines instant positions > rather than the probe detected positions. > > And, maybe I am running it wrong but the values its applying seem > totally duff. For a long X move, and a short y move, its repositioning > the xy zero marker at the position its at when align_x is clicked, and > a y move that should be over 2 or 3 degrees of rotation is reported as > .18 w or ccw. > > To me thats a totally unusable result. Am I useing it wrong? > > It seems to me that it should only measure the angle required to > correct the path in case the material is not screwed to the spoil > board perfectly square to the axis's of the machine, something rather > more probable than not. > > Align.zip comes with all the code's and zero instructions. > > Am I using the wrong align kit? This one is using actual machine > position, whereas it makes far more sense to me if it uses the G38.2 > results, many times more consistent than the operators eyeballs. The > use of g38 results is of course a simple edit, but to move the > effective home position to where its at when align_x is pressed makes > zero sense. It should only rotate the coordinate system by whatever it > takes to put the 2 points measured at the exact same y offset when the > x button is clicked, or at the exact same x offset when the y button > is clicked. > > IOW it should only apply a rotational correction without changing the > home position, and only enough R correction to align the master map > since its applying all these potentially duff figures to the G53 > master map. > > Now, I've just spent an hour searching our wiki, and I note that any > and all references to this align.zip I have, seem to have been > scrubbed. But I am fairly sure I downloaded this from a link in our > wiki. Years ago. in 2013 TBE, 5 years ago > > Thanks for any clarification. > Along this same line of thought, I saw a probe on ebay that was nothing but a 5" length of presumably steel wire with a "turret" turned on the top that the wire from the probe input was wound around, mounted in a teflon or maybe HDPE two piece clamp with a groove for the wire, and a thumbscrew to close the clamp, loosen it to slide it up out of the way, or drop it all the way down past the end of the tool and tighten the thumbscrew. If it was straight it should be pretty repeatable, had a steel? ball about 1/16" in diameter on the end, or perhaps a wee bit bigger. That clamp screamed shop made with a coping saw etc, but the contact needle looked professionally made, suitably nickle or chrome plated. My ebay searching has not come up with such a critter. Where would one src one of those?
Or do I have to make one of those in a lathe using a dremel with a diamond disk as a tool post grinder? There is cheap, and there is a waste of time... > Cheers, Gene Heskett 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> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
