Can't you just build yourself a small little gear pump?
John

> -----Original Message-----
> From: Gene Heskett [mailto:[email protected]]
> Sent: March-25-19 5:52 AM
> To: [email protected]
> Subject: [Emc-users] different idea re mister
> 
> 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>
> 
> 
> 
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