Them typos will get you every time! We have had some operators put the decimal in the wrong spot on a tool offset and really do some damage. Them decimal points get very expensive! It happens to the best. Live and learn.
Dave ----- Original Message ----- From: "Gene Heskett" <[email protected]> To: "Enhanced Machine Controller (EMC)" <[email protected]> Sent: Saturday, March 20, 2010 3:12 PM Subject: Re: [Emc-users] G52 and Fanuc conversion to EMC > On Saturday 20 March 2010, Paul Keeton wrote: >>Gene, >> >> Do you (or anyone else) see any any issue with using a >> separate >>encoder and leaving the tach on the motor alone? I have seen this done on >>other servo systems with great reliability. Normally backlash is not an >>issue unless it is an excessive amount on those systems. You simply don't >>use backlash comp if there is a scale on the machine. You may have to if >>your encoder is on the screw. Almost definitely if your encoder is on the >>motor and you have a gear box. I would have to agree about the lag time. >>What would you suggest? And by the way, I sensed no disrespect, I asked a >>question and you respectfully responded with an intelligent answer, and I >>thank you for that. >> >>Dave > > I believe there are several here who are using the tach signal back to the > motors controller, and the encoder output then going back to emc, and it > apparently works quite well. But I should let those who are do the > testifying that it works well. > > I can't personally testify to that as my only machine is a thoroughly > hacked, > all new Z axis saig x1, with 262 or 425 oz steppers on it, aka the > smallest > HF they sell, with bigger tables and the rebuilt z, it does pretty well if > I > can keep the damned typos under control. > > It missed the first 0 after the decimal point yesterday and carved a hole > in > the side of the barrel channel of a gunstock I first carved by hand 40 > some > years ago. So now I have some thin strips of walnut being glued up to > make a > plug for it after I squared up the hole, the original blank was about $130 > in > 1969. With a little luck, it won't be too noticeable once its fully > refinished. That is basically what I was doing anyway as I'd pulled the > Rem > 788 action and its 2nd shot out Shilen 22-250 Barrel and have refitted it > for > a heavy SS Howa 1500 in 22-250. > > [...] > > -- > 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) > > "The identical is equal to itself, since it is different." > -- Franco Spisani > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
