On Thursday 25 August 2016 14:38:19 Gene Heskett wrote: > On Thursday 25 August 2016 12:55:23 Przemek Klosowski wrote: > > On Thu, Aug 25, 2016 at 12:25 PM, Gene Heskett > > <ghesk...@shentel.net> > > wrote: > > > Setting up the start-stop and done settings in my gcode, I had a > > > good pressure on it, and had cleaned the face of the chuck with > > > acetone, s superglue should have stuck it for a non-slip grip. > > > Peeled it loose on the third touch of the tool. > > > > Superglue is brittle (hard but not tough), so it probably fails from > > tool chatter. I think you'd have a better time with Goo, contact > > cement or carpet tape. Even 5-min epoxy should be better, and it has > > the advantage of disassembling by heating. > > No tool chatter, just the nearly silent scraping sound as it just > barely make a bit of dust. > > I have no clue how it will take the cutting heat, but while out > getting a scrpt for Dee at CVS I found some double-sided, no foam, > scotch tape that claimed to be permanent. Since there are empty jaw > slots in the chuck, I'd bet it is removable. :) > > Anyway the job is started, will take about 500 minutes to run. > And the tape squirted out of the interface in about 45 minutes. So after feeding us I read the directions on the 3M metal glue, and applied it after cleaning up the gooey from the tape. But its a 24 hour cure time, so I can't hit the r key till late tomorrow. It looks to be a formula similar to gorilla glue, expanding as it cures by stealing moisture from the air. Cream colored expansion foam where the tailstock pressure squeezed it out.
> Looking at the backplot highly magnified, it looks as if the first few > cuts are light, and by the time it was to make the last sweep, the cut > would be pretty heavy, so I reduced the decrement multiplier, and then > adding a teeny bit to it in the loop, which made the last half look > like a pretty consistent cut. We came in to check on my lady, & > rebore and refill the coffee cup, and we'll go see how its doing once > it starts to cut a visible curve. And take my IR thermometer along to > see how hot its getting when I go back up the hill. Which after cutting for about 1/2 hour, before the tape failed, said 99F in an 87F building. > If that fails, I also bought a small tube of "metal" glue, which reads > like it might work, but has a 24 hour under clamp cure time. > > Fun and games, but so far I'm not keeping score. 3 days on this, and the #@^% "fun" is wearing thin. I can't feed too heavy else the polygroove belt slips, but if I tighten it, then it breaks other drive parts. Damned if I do, and damned if I don't. If the Sheldon was usable, this would be a 50 minute job just because I could take a decent cut. So I'll go cry in my last beer, and see about finishing up the slider plate mounting strips that will mount the X motor on the Sheldon for tomorrows project. Bearings for the x thrust container are trickling in slowly. No sign of the torrington cartridges that go in this same shaft assembly yet. 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> ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
