On Sunday 24 May 2020 18:15:44 Gene Heskett wrote: > On Sunday 24 May 2020 13:41:07 Gene Heskett wrote: > > On Sunday 24 May 2020 12:51:23 andy pugh wrote: > > > On Sun, 24 May 2020 at 17:28, Gene Heskett <[email protected]> > > > > wrote: > > > > 'twouldn't be the first time an IDC cable was iffy > > > > > > ... > > > > > > > I hate trying to solder that stuff > > > > > > Soldering IDC seems to be missing the point? > > > > > > You can use individual crimps in housings. I have used Harwin M20 > > > series. They don't do a 13+13 but you can put them in side-by-side > > > and even glue them together. > > > https://www.mouser.com/ProductDetail/Harwin/M20-1070900?qs=Jph8NoU > > >xI fV sJjhtgmLy%252BQ%3D%3D (plus a 4x4 to fill the header) > > > You also need the terminals (gold plated) > > > https://www.mouser.com/ProductDetail/Harwin/M20-1180042?qs=pYcASEc > > >TD E4 r0B52MhViPw%3D%3D > > > > > > I use my smallest W-crimper and that has always worked OK. The > > > factory tool is a bit too spendy. > > > https://www.mouser.com/ProductDetail/Harwin/Z20-320?qs=sGAEpiMZZMt > > >yU 1c DF2RqUOtOPkfvlC0EbGCz9sNUj2Q%3D > > > > A bit? What is your definition of a lot? ;-) > > > > > I am not sure that those URLs will work outside my session, but > > > you can find them by part number, the M20-...... part of the URL. > > > > Works fine here. > > > > That would nicely handle the 26 pin header on p2, but what about the > > BBLB amp blue molded db25 on the other end? I'll pull this one off > > and run both ends back thru my vice, its probably 3 years since that > > one last felt the squeeze. I'll put an extra shim in the center for > > extra pressure in the center of the connectors. If that doesn't fix > > it, I've probably got enough cable to make 10 more of them. > > Connectors are in short stock though. That particular SainSmart bob > > has a good reputation in these here parts. I must have a 6 pack of > > them in service. Many others have been removed for various reasons. > > Often for slow opto's, screwing up a pwm, so I now have a house > > rule, don't use anything with opto's in the outputs anymore. > > I made room enough to move the G0704, and using my new hoist I set the > BS-1 back off of the table, then picked up on the table enough to > wrestle the 450 lb mill out about 90 degrees, then found the 3/8" cap > screws in the back of the post were apparently lock-tighted or > gawdawfull tight as it took a 6 foot piece of 3/4 conduit for a > cheater on the allen wrench to move any of those 4 bolts. I'd estimate > I was lifting well over 100 lbs 4 feet away from the bolt before any > of them moved. Even with the bolts all loose, I can only shake the top > of the post about 1/16", so the bolts fit the bolt holes very > precisely. I don't have a cylindrical square so I think I'll scan a > square i've trusted for a long time, and see if I can retighten it > with at least the same but opposite error on each side, get the bottom > bolts to hold it there, then scan the front and back and maybe add a > layer of reynolds wrap as shim to plumb the in-out lean, all > referenceing the table. That ought to be better than it was.
Since I don't have one of those $188 cylindrical squares, I thought I'd play with an original die cast Swanson Speed square that I've had since forever. Stood it up on its flat face on the mills table and measured the post, which was out of range for one of those .0001 dials in just an inch of vertical travel, post leaning left. Got out a 4+ foot piece of 3/4 sq steel tubing and used that as a cheater bar on a good 3/8 allen wrench and still had to bounce on the end of it to get the bolts loose. Pushed the post to the right as far as the loose bolts would let it, and snugged them up enough to recheck, still off about 5 thou in 4", turned square around, still off 5 thou in the same direction. zeroed dial at bottom, got 5.5 thou with the square either way, so that 30 yo diecast Swanson is good. Loosen bolts slightly, beat on post with a dead blow till I had about 2 thou the other direction. Rezeroed it all, about half a thou in 5.5" of vertical travel. Put about 100 lbs on the end of the cheater tightening things as I'd call that "good enough for the girls I go with." And a hell of a lot closer than it was at 9 o-clock this morning. Didn't check in/out tilt, probably should have but I'm beat and trying to figure out how to get it back into its home position w/o screwing up my back like I did putting it there 4.5 years ago. Thanks folks. 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
