Ok, thanks I'll keep the part level in mind when I mod my water table. I'm using a Hypertherm 1250 with a machine torch and I do know that if I keep the bottom of the part wet then I get a whole lot less smoke and dust. I have a small insert that I use for small parts that I can fill to the top.
John On 2/13/2012 8:09 AM, Tom Easterday wrote: > On Feb 13, 2012, at 8:05 AM, John Thornton wrote: >> Tom, >> >> Wow! what a nice write up. >> >> I use a mix of sodium nitrite and physan 20 in my water. I noticed your >> water is green, what are you using? > Lube Corp., Green Cut (http://www.greencut.com/). We used it because we had > it sitting around the shop. Peter tried using it in his converted Fadal mill > but didn't like it for some reason I don't recall. It seems to be fine in > the plasma table for the few weeks we've had it. > >> How does cutting submerged work? >> I've been wanting to modify my water table to do this for some time... > The torch we have is not designed to cut fully submerged (Hypertherm > Powermax54) If the part is just under the water, say 0.25" or less, the air > blowing through the torch head will just move the water out of the way and it > is cutting just like it is above water (minus the top sparks of course). If > you get the part any deeper though you get a lot of dross on the bottom, > normally an indication of cutting to fast. It just can't cut it (pun > intended) if it is really submerged. We try to keep the part just at the > surface. > > Supposedly there are torches designed to cut fully submerged, so I have read, > but I don't know anything about them... > Tom > ------------------------------------------------------------------------------ > Try before you buy = See our experts in action! > The most comprehensive online learning library for Microsoft developers > is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, > Metro Style Apps, more. Free future releases when you subscribe now! > http://p.sf.net/sfu/learndevnow-dev2 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
