On Thursday 30 July 2015 08:50:22 John Alexander Stewart wrote: > Gene; > > The "no longer required" manual locks reminder gives me some > additional > > > freedom as that had not occured to me. What had occured was how do > > I keep them from being demolished if not correctly positioned? > > > > So that opens up additional possibilities, thanks John. > > The X axis on mine; I retain one of the round table stops in that > front of table dovetail that you mention in a previous email. > > The microswitch is positioned on a front plate, spacers and M6 bolts > to pre-existing holes. Microswitch is horizontal so that (in theory, > anyway) the table stop will not "crash" into and destroy the switch. > > I removed the front measuring tape, and on my front plate, I machined > up some long rectangular bars from scrap that are bolted to the front > plate, but ride in the slot where the measuring tape was; the fit is > pretty close, so the chance of swarf getting onto the microswitch is > pretty small.
That is what I will do also, but haven't gotten that far today, figured I'd do the Z first, which is on, programmed and working. Then I took one of the X buttons, added a spacer washer behind it and installed it in the front Y lock bolt hole. Spacer needed to put the button out far enough to hit the switchs roller since its forcibly spaced out by the switch mounting bolts being in firm contact with the slanted side of the base. Then took a 4.5" piece of 1x1/8th flat alu, and bent both ends so the bottom could be bolted to a tapped hole I made in the top of the base flat. Its bent inward at about the same angle as the base casting, then bent to come straight up at about 1.5" off the top of the base. Slotted to mount one of those microswitches on the face toward the Y carriage. But I miss-judged how far fwd that x button will come, so now I need to reverse the switch putting its roller about an inch farther back, and of course drill & tap another 3m hole in the base so its solidly mounted. It sure seems to be solid even with only one 3mm cap screw it it ATM. And the X tables movements will never touch it. Then Dee came out & asked if I was going to feed her, so we packed up & took the toy & out and found a nose bag with 2 big hunks of cod in it for me & a special hamburger/fries for Dee, at a little greasy spoon about 10 miles west of Weston. That was my mistake, I sat down. And thats it for the day, my back started yelling the instant I got up to go pay the ransom. Tomorrow is another day to finish that, and get started on the X switch. I am pleased with progress so far > The Y axis - I machined a flat on the base casting, with a bunch of > tapped holes, so the Y axis switch base is just a bit of angle. Again, > an existing locking handle hole on the saddle casting is used for the > trigger. The Y axis switch is covered with a metal cover machined from > something from my scrap box (an old hammond box) such that the > microswitch is covered; the base angle under the roller machined away > such that if any swarf does indeed find its way in, hopefully gravity > will help it find its way out. It is also under the table, so I don't > expect too much swarf to get in. > > The only issue that I have with the Y is that there is a potential > interference with the right hand bracket for the X axis; one of these > days I'll take a file to the bracket so that I can get the full table > travel without the possibility of interference. > > Hope this helps - John. It does John, give me motivation to get to it. Thanks. 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
