On Tuesday 30 September 2014 11:55:30 Jon Elson did opine And Gene did reply: > On 09/29/2014 10:21 PM, Gene Heskett wrote: > > That won't be a very informative test in many cases > > because the machine may have been "touched off", > > No, if the axis is homed, the soft limits are always > referenced to the MACHINE coordinate system. > Touching off, (or G92) does not alter that coordinate system. > > If you are doing advanced stuff like rigid tapping on a > machine that is not set up for > homing, you are making a big mistake! > > Jon
I rather assumed a more or less stable home would be a requirement. It seems to help, although I did tap a few holes before I had the switches installed. Which leaves the problem of finding x's true center at 0.000 since I put that homing switch about 5 thou from the back out mechanical stop. To that end I have purchased a laser pointer in hopes I can make a mount for it that will plug into the rear of the spindle, and be easily adjusted for minimum error while its rotating, and then the tool advanced to touch the beam, which should get me within 50 thou (the red beam is about that thick & definitely not circular), regardless of the tool mounted. But its still in the box as yet. :( life keeps getting in the way. No clue if the idea even has any merit, but it seems like it would be worth a try, and while adjusting tailstock offset. Back to the Bolton Vs Grizzly, Grizzly has 1 model, Bolton has two of similar descriptions once you get past the Bolton BS. The Grizzly appears to be the same as the slightly smaller Bolton. Only a 1 hp spindle, but the Grizzly comes with 2 chucks and tools like follower rests etc. Only the freight takes it above 2 grand. Bolton wants extra for those. Hopefully Grizzly will add the 1.3HP, 23" between centers model with all chucks & tools before I fall over. However it is not on their web page a/o last night. 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> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS ------------------------------------------------------------------------------ Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
