On Fri, 2013-05-31 at 23:43 +0100, andy pugh wrote: > On 31 May 2013 22:54, RogerN <re...@wildblue.net> wrote: > > > I have a solid model IGES file that has all the geometry I > > need to machine the part. The problem is when I try to machine the surfaces > > that are at an angle to the normal machined surfaces. > > I think the most expedient way to do this would be to set up planes in > the CAD model, and create 2D drawings projected on those planes. > > In theory you could set up a 5-axis kinematics and manually set the > angles of the rotary axes. But elements such as the tool length and > the distances between rotation axes and the datum planes become > critical. > The real problem as I see it is: if you make a mistake you trash an expensive part. Not fun.
It is nice to have a cheap prototype to practice on. :-) In that vein I heard a story about a piece being machined at Hanford. The dwg called for a hole xxx in dia yyy in depth within this very complex part. The machinist did it as called out but the drawing was wrong. Trashed 1.5 million worth of machining. Another one of those horror stories. Dave ------------------------------------------------------------------------------ Get 100% visibility into Java/.NET code with AppDynamics Lite It's a free troubleshooting tool designed for production Get down to code-level detail for bottlenecks, with <2% overhead. Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users