On Thursday 04 October 2018 21:59:50 Gene Heskett wrote: > Greetings all; > > This afternoon I unpacked some brass tubing, the same size as what the > 38 special laser was made from, and stumbled over a short piece of 3/8 > SS tubing a neighbor had given me after he had redone the fuel lines > in a local race car. So I made a pipe nipple with .5mm threads out of > the stainless, shaving it .1mm at a time until it fit the threads in > the rear where the batteries are held. Made it about 10mm long, and > cut it off, screwed into the rear of the laser. Then I unpacked 1 or > the 3, 3' brass tubes I had bought, and inverted and reduced the code > until it had cut the same thread internally, then screwed it onto the > SS nipple. > > Then tried to cut it off about 2" longer than the rear of the spindle > but my 50 yo tubing cutter got slightly out of square and screwed > itself up against the adusting nut before breaking off the tubing. > Darned near too short, depending on the slip ring extension. > > By then it was dinner time+ so I quit for the night. I'll thread the > second tube tomorrow, and mark it for length for cutting after I turn > it around in the lathe. Then figure out a design for a slip ring > insert and brush carrier so I can power it from a small wall wart. > Eating $15 worth of batteries per 30 minute run time doesn't have a > good flavor to me, and I've wall warts by the bucketfull. And I've > teflon enough to make the slip ring holder, just need to find that > round tuit. :) > > The variable ND filter has not arrived. > And still hasn't showed up. I did get the rest of it together enough to hook a 1.7 volt wall wart up to it, not as bright as it is with fresh batteries, which would be 3 volts, but still plenty bright enough for this job. Glue setting up on a brush holder overnight, piece of 1/8" thick cherry. I've to add the contacts yet, one to brush the brass tube for grounding and plus, and a teflon spacer driven into the end of the tubeing with a brass screw that will feed the minus to the laser, ditto on the other end with another teflon button and a screw thru its center, with a piece of 24 gauge wire between the screws. I'll lay a thin strip of brass shim stock for both brushes. Tomorrow.
No AC in the garage, close to 90F and 95% all day, had to take a shower just to unglue my clothes from me. Gotta find an AC, but everybody's sold out till next year. Grrrrr. I'm somewhere near well done. I hope its cooler wherever you folks are. > Progress, sorta. slow motion like me. ;-) -- 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
