On Monday 07 May 2007, Dean Hedin wrote: >Gene, You should find a lighter spring if possible. > >I don't think Chris will need the type of probe that you and I have made. >To do a "crawling" type of probing algorithm they will require a probe >that can side trigger as well.
With a lighter spring, which I'm still looking for, and a slight squeeze in a jacobs chuck to gently reduce the clearances & get rid of some of that .020" wobble in this model, I'm sure some sort of a crawling operation, recording the center of the true-false hysteresis as it crawled, would be doable, just not with emc itself. Unforch, last nights 2nd restart also failed as somebody took out a power pole about 1am and we didn't get power back till after 4. Hopefully that probe didn't get damaged since the motor psu is not on the ups out there, and it recycled 3 times before the recloser at the substation locked out. No idea if that psu, (its an anchor for a good sized boat) held up well enough so it only went down once. Its got about 150,000 uf in it for filters. >Chris, I'll have to dig up my notes, but I did come up with a crawling >algorithm >using a series of short, linear probe moves. However, this needs to be >under algorithmic control, >since, in this new algorithm, the choice of the next probe direction depends >on whether or not there was contact >from a previous probe move. This aspect would prevent someone from doing >this with g-code alone. > >Things could be different if the the entire probing operation is wraped up >inside emc >with a special comand. > >If the goal is to make a more sophisticated g-code probe command, then it >may take some >careful thinking to make it generic for all types of machines > Agreed. I tend to think in my little world, but emc has to live in everybodies shop. -- 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) <doogie> dpkg has bugs? no way! ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
