Gene, It seems you have other worries, take care of your wife first.
What I'm learning about rigid taping from following your effort is that I want the encoder on the spindle, NOT the motor. On Mon, Dec 7, 2020 at 4:18 AM Gene Heskett <[email protected]> wrote: > On Monday 07 December 2020 06:19:15 andy pugh wrote: > > > On Mon, 7 Dec 2020 at 11:13, Gene Heskett <[email protected]> wrote: > > > Now comes the improvement request for two more pins into motion. > > > > > > I need a pin to disable the backlash move, until the spindle has > > > actually stopped. > > > > Are you sure that isn't what already happens? (I guess that Halscope > > can answer the question). > > > I would expect the Z axis backlash reverse to happen when the Z axis > > actually changes direction, based on the encoder direction change. > > I'll have to verify that, Andy. If that is the case, there must be > something else afoot. Perhaps just a small, take up the gear lash move > and kill some time before getting serious with the torque might work to > trigger the backlash move. Gear lash is only a degree or so but that > s/b several counts of the encoder since the scale is just north of > 14,000. > > But it may take a bit, my wife has reached the end stage of her COPD. > Hours, maybe a day or so left. I was invited to come and visit yesterday > despite the covid lock down. And I'll go back today. Struggling to > breath, her BLOX was 78% when I walked in the door. That's not good. > I'd guess her weight as < 60 lbs now. That Y where the collarbone > splits at the base of her neck, is a hollow at least 2.5" deep now. And > they just called ay 7.15 AM urging me to do a ten-eighteen and get > there. > > > Have you considered a floating tap holder? You wouldn't need much > > float. > > Can this tap holder handle the 7/8" diameter tap hats I have made? They > are keyed into the R8 by a cap screw in the side engaging a cutout in > the lip of the R8 holder, and the tap is precluded from any rotational > slippage by 4 grub screws gripping the square at the rear of the tap. > > Its worked quite well, totally stopping the slippage of a tap in a ER > holder. A pair of 15" wrenches on the TTS and ER nut can't pull it tight > enough to stop the slippage. The hats do. > > Probably later, when the above is done. > > 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) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
