On Saturday, May 19, 2012 05:16:44 PM cogoman did opine: > On 05/19/2012 06:06 AM, Erik Christiansen wrote: > > It scares me that coordinate offsets could be cumulative. Coordinate > > offsets (workspaces) should not nest, I believe. I have not read > > anything in the doco to say that they do. > > That doesn't scare me at all, as long as the documentation is clear. > On an old Bandit controller I use relative positioning to make multiple > parts on a sheet. If I had multiple fixtures, so that I could have a > relative offset to the fixture, and then within that fixture a relative > offset for doing multiple parts on the same stock, it would not be a big > deal IF... it was clearly documented how to do that. That way I could > do multiple parts in absolute positioning, which would make my position > in the part easier to read. > > Full Disclosure: I have not used offsets in LinuxCNC yet. (except > where one got set without me knowing it, and I had to zero it out to get > my desired result.) While I found it invaluable when I was processing the output of pcb2gcode to make that encoder board double sided with enough accuracy I could drill a hole 60% of the boards thickness, turn the board over and drill that same hole from the other side with registration good enough I can't see a step offset in the walls of the hole in about a 100 power magnifying glass. With std acme screws no less.
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> Alaska: A prelude to "No." ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
