If you want it really automated - you can set the g10 offsets from the probed hole location coordinates.
I have done this for probing tool length (different from what the sample is in cvs that sets tool length). The preview in axis gets a little goofy ;) because your cutting path is different than your preview path but it works. so I don't know if your registering close enough that you could position in the hole automatically but either way -move into hole - either manually or automatically if it is positioned close enough -have the program probe the hole -calculate center -set g10 coordinate from calculated center -run rest of program. So - ----- Original Message ----- From: "Chris Radek" <[EMAIL PROTECTED]> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Sent: Friday, August 31, 2007 2:41 PM Subject: Re: [Emc-users] probing > On Fri, Aug 31, 2007 at 01:14:37PM -0500, Stuart Stevenson wrote: >> Gentlemen, >> I have a request. I would like someone to program a probe cycle to >> do this. I would like it in python. I want to have the probing cycle >> for my machine but even more I would like a simple program to compare >> with this to help me learn python. > > Stuart, > > Probing to find the center of a hole can be done strictly inside gcode > without any external program's help. The procedure could be: > > The operator installs the probe and jogs it into the hole > > The operator runs holeprobe.ngc which alternately seeks the X > extents, moves X to the average of them, seeks the Y extents, > moves Y to the average of them, etc. This will converge very > quickly to the center of the hole and the probe tip size is > irrelevant in the calculation. (I think this is the algorithm you > proposed or very similar to it.) > > With the probe still at the center (but maybe raised), > holeprobe.ngc exits. > > Now the operator uses "Touch Off" to set any coordinate system > however he chooses. > > This seems like a natural and straightforward way to do it. > > That being said, if your intent is to learn python instead, that's > cool. But, there are some gotchas that come to mind. Reading and > rewriting the var file by an external program while EMC is running is > likely to cause troubles. Making a gui for an external python program > to collect values from the user is a lot of work, and most of what > you want is already done in AXIS's touch off interface. > > Chris > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. > Still grepping through log files to find problems? Stop. > Now Search log events and configuration files using AJAX and a browser. > Download your FREE copy of Splunk now >> http://get.splunk.com/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
