On Wednesday 18 November 2009, Ron Ginger wrote: >If you really dont want mist in the air there was an article in an old >magazine, I think HOME SHOP MACHINIST about building a solenoid operated >pump with a nozzle held by a mag base and pointed at the work. It used a >555 timer IC to generate a tiny pump stroke every few seconds. This >directed just a drop of coolant right on the tool edge, and with a >simple knob you adjust the rate to get just enough coolant. > >This one has been 'on my list' for a while, I think its the best >approach for a home shop. Someday Ill actually get around to it. > >ron ginger > And that is another thing I've been threatening to go into production of, round 'tuit's. I can't find the one I had 40 years ago. :)
The idea of swaging the tip down to about zip got me to thinking, and the thoughts ran toward insulin needles, which are $1.89 a 10 pak at Wallies Pharmacy. That was fallback plan, brought on by my not being able to find a suitable female swage form for that small a pipe. I annealed it, then clamped a well polished 3/8" drill chuck on the last 1/16", tightened it up enough to start crushing the pipe, and gave it 4 or 5 turns. 3 times, but all I succeeded in doing was wearing it off without appearing to shrink the center hole. So I am now using 3x as much air & already had a great plenty of that. So then I pulled the needle out of one of the shringes, bloody difficult cuz a 31 gauge needle is only .012" for OD. Hard to get a good grip even with suture clamps. Thinking about super gluing it, then realized that super glue, being about 1000x wetter than water, would probably seal up the inner passage of the needle long before it had filled the relatively huge space between the needles OD and the pipes ID. I even tried to swage it down onto the needle with a hammer and anvil, but I can see that is just as futile. So I'm going to sleep on it unless someone has a better idea. -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) The NRA is offering FREE Associate memberships to anyone who wants them. <https://www.nrahq.org/nrabonus/accept-membership.asp> If you analyse anything, you destroy it. -- Arthur Miller ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
