Some do not realize a hob is by definition a helical cutter for generating a form. A single or multiple slot cutter is a milling cutter. Where the user needs some quality and accuracy then the ME method is a bit of a bodge but can give reasonable results relating to the quality of the cutter. One can with rack form generate involute form by running a cut shifting the cutter and rotating the blank a small amount and recutting this is how a gear shaper/shaver works, they also use a gear form cutter to shape internal teeth this way.
Dave Caroline ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
