We have always used cutter comp on thread milling operations. I know the book says you can't use comp with helix moves, but it has NEVER failed us...the 'trick' is to add offset comp after creating the helix, since the helix will not be created with offset no matter what the comp setting is, and to add the lead-in and lead-out moves manually (or create them first). We've run this way on Fanuc, Mitsubishi, and Haas.
We have had trouble with comp and polylines, though. if the line segments are too short and the machine cannot properly comp them. This is a rare case and it always takes a few minutes to catch the problem. another 2 cents, Jeff Brower Stump Preacher Guitars On Friday, June 09, 2000 9:46 AM, Bill Schoeppe [SMTP:[EMAIL PROTECTED]] wrote: > You can program to the edge of the tool if after your done you explode to a > polyline and put cuttercomp on it.(ONLY SMARTCAM) then do a lead in and out > (Haas Fanuc and fadal all let you run cutter comp in three axis if every > line has an x,y, in it. ) let smartcam code to the center of the tool and > you will get the most adjustment out of it!! > > > thanks bill > > > -----Original Message----- > From: David Wolfgang <[EMAIL PROTECTED]> > To: Smartcam Forum <[EMAIL PROTECTED]> > Date: Wednesday, June 07, 2000 5:44 PM > Subject: Fw: [mfg-smartcam] THREAD MILL > > > > > >Dave Wolfgang > >----- Original Message ----- > >From: "David Wolfgang" <[EMAIL PROTECTED]> > >To: "Colin Williams" <[EMAIL PROTECTED]> > >Sent: Wednesday, June 07, 2000 8:09 PM > >Subject: Re: [mfg-smartcam] THREAD MILL > > > > > >> Major and minor dia are in the machinist handbook for npt threads. I > >program > >> two to three threads deeper than the affective thread depth (Effective > >> thread depth is the flat on the gauge) but do check the book. Take the > >> thread minor and add the thread depth is a good starting dia. Then feed > in > >> the + direction at 1 deg. 47' min. Also if you have not programmed thread > >> milling in the past you must program the center of tool path (not tool > >> edge). good luck. > >> > >> Dave Wolfgang > >> > >> ----- Original Message ----- > >> From: "Colin Williams" <[EMAIL PROTECTED]> > >> To: "Smartcam Forum" <[EMAIL PROTECTED]> > >> Sent: Wednesday, June 07, 2000 1:34 PM > >> Subject: [mfg-smartcam] THREAD MILL > >> > >> > >> > PMILL V11.0; > >> > > >> > Using SmartCam "thread mill", I would like to cut a 3/4 - 14 npt, using > >a > >> 4 > >> > flute thread mill. The thread mill spec. is .43 dia. at the face of the > >> tool > >> > with a 1" flute length. > >> > > >> > What diameter would I set my tool to and at what level do I set to? > Also > >> the > >> > major and minor diameters. > >> > > >> > > >> > Thank You > >> > > >> > Colin Williams > >> > Wabtec Corporation > >> > > >> > > >> > > >> > ====================================================================== > >> > To find out more about this mailing list including how to unsubscribe, > >> > send the message "info mfg-smartcam" to [EMAIL PROTECTED] > >> > ====================================================================== > >> > > >> > > > >====================================================================== > >To find out more about this mailing list including how to unsubscribe, > >send the message "info mfg-smartcam" to [EMAIL PROTECTED] > >====================================================================== > > > > ====================================================================== > To find out more about this mailing list including how to unsubscribe, > send the message "info mfg-smartcam" to [EMAIL PROTECTED] > ====================================================================== ====================================================================== To find out more about this mailing list including how to unsubscribe, send the message "info mfg-smartcam" to [EMAIL PROTECTED] ======================================================================
