On Thu, Jul 4, 2013 at 7:54 AM, Kirk Wallace <[email protected]> wrote: > On 07/03/2013 11:06 PM, Gregg Eshelman wrote: >> I've seen videos of turbine wheels being cut with a ball nose straight end >> mill on a 5 axis machine. Why not cut involute spur gears on a 4 axis with >> end mills? > > I and others on the list have cut thin gears working the side of a small > diameter end mill. Wooden clock gears are are commonly done this way. I > just created a path for one tooth, > http://www.wallacecompany.com/machine_shop/gears/ > > then rotated enough copies to complete the gear in QCAD. I converted the > QCAD file to G-code and ran it in XYZ on my mill. Using the tip of a > ball end mill with an A axis could be the same, but one would most > likely need a fancy 3D CAD/CAM.
Actually no the gcode is not too hard at all as a rack form cutter is a straight line as also the path of the cutting line is straight, the facets you get depend how close your passes are to each other. Dave Caroline ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
