Greetings all; Having discovered the settings that control the low frequency boost in this VFD, and having rigged a pretty dry misting arrangement, I figured it was as good a time as any to cut the end panels of the box that has the interface cards in it. These panels are about .035" thick, and are hard anodized which presents a challenge to most carbide tooling. So I set it up to do the connectors holes in one panel, and the db cutouts for the computer cableds db 25's in the other panel. It did a beautiful job on the 11 holes in the first panel, but swapping panels to cut the db25 patterns was a disaster, the tool was obviously starting to plug up. So I wound up with ragged holes with lots of metal thrown up that I had to sharpen up my pocket knife and clean up. Didn't break the tool but probably pushed my luck on that point. Used about 4 oz of kool mist for the whole job, so it was wet, but not really soaking the cherry spoil board so bad I can't use it again after its dry.
This was an uncoated sc tool, 4mm in diameter, 3 flute with about a 45 degree up spiral. Speeds ranged from 6000 revs to 14000. Chips thrown were almost dust and its obvious I need to put up some lexan splash guards. The fact that it plugged up tells me that kool mist is not the magic bullet for this job. Safflower oil, which I used for one job years ago, would be better, but the cleanup needs solvent, lots of it. On everything it settles on. Including your lungs as I used more air pressure and smaller orifices. Blame it on younger and dumber as I was then in my mid-60's, 20 years ago? Any suggestions as to what to concoct for misting fluid next time, that would prevent the sticking and plugging up while doing such sheet alu the next time? Or was the hard anodized brushed satin finish the real killer? Add some liquid dish soap to enhance its "sticky" maybe? IDK. Thanks everybody. 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
