MPJA has an air pump apparently removed from a blood pressure tester. Needs 3 volts at about 700 ma to run, develops about 2L/minute. Stock #35369. But it should be able to lift a foot of water I'd think if it can inflate a BP cuff to a 250 equ BP pressure.
If this were subjected to a variable leak, the output pressure should still be sufficient to deliver the misting fluid to the misting nozzle from the coke bottle. The cap tube s/b here by Wednesday and if 16 feet of that isn't enough restriction to get a fast drying mist, I'll order one of these. And rig a popoff pressure regulator on the bottle. But since the capillary tubing will be here first, I'll test it first. The present delivery rate will drain that 8 oz bottle in 5 or 6 minutes, way way too fast. I should be able to make it last an hour or more. The target would be a spray that evaporates completely and cools the tool and work, without flooding the work with a lot of wasted runoff. Thats the theory anyway. The question then is will this thing run continuously or do I need to program a duty cycle in hal to prolong its life. With a 2L bottle on the back of the gantry as a pressure tank, 2 seconds a minute might be enough to maintain the working pressure once flow starts. Chucking the end adjuster on the nozzle and spinning it smaller in the Sheldons ER-40 kit would also restrict the air flow to something my compressor could tolerate. The annular clearance there is too large IMO. I'd like to have 1/10th the air flow at 15 psig, as to get decent atomization takes about that but throws it 8 feet or more. The inability to just buy what I need here is whats wrong with this country. 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
