On Friday, November 04, 2011 01:26:34 PM Viesturs Lācis did opine: > Hello, gentlemen! > > I am in trouble with that double-spindle wood milling machine. > It has a tendency to freeze up. > > I have been trying to understand, what is wrong, but the symptoms are > telling that the problem is in the small wood dust, that gets inside > PC case and everywhere else, because the more machine is working, the > more errors it produce - let rest for few hours and it is back on > track. > > My proposed solution - put PC and monitor in a totally closed, > dust-proof case. My solution to that is to put the machine and motor driver electronics on a shelf about level with the counter spring pulley, with a lexan shield between the machine and the electrics. No attempt has been made to seal the computer case at all.
I have cut a lot of wood with it, and have not had the machine collect enough dust to cause any problems. For my latest motor driver kit, the housing is built with pretty tight joints, with a 360 watt psu, a 6" ball bearing 120 volt rotron fan and 4 of the MM-542 drivers in it. The fan is to distribute the heat to the housing, which is either 1/8 or 3/16 alu plate. It gets pretty warm after a couple of hours, so another 6" rotron is sitting on edge on top of the enclosure blowing air across the top, and 4 hours later the front of the box is maybe 110F when its 70F in the shop. I'll do better at directing its air flow when the heat hits next summer. ;) > But then there is a problem - how to cool the inside. > I was thinking that PC components could be cooled with water, but I do > not know, what to do with monitor. I have a wide screen 18" LCD, also on the other side of the lexan divider, and so far, knock on wood, zero problems. I think I vacuumed the outside once last summer. OTOH, I suspect your setup might be getting 20x the use mine is, so you might want to consider that. I personally lose 3 or 4 keyboards to one of any other problems, swarf is hell on keyboards. > Could You, please, share Your experience and/or know-how about > cases/boxes of PCs in industrial machines? > > Viesturs My $.0.02. :) 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) My web page: <http://coyoteden.dyndns-free.com:85/gene> birth, n: The first and direst of all disasters. -- Ambrose Bierce, "The Devil's Dictionary" ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
