> > I'm still dreaming of a CNC machine. > You mean as a "fun project"?
Partly. I do woodworking too, so a CNC platform would have multiple uses. > Sure. That plus some kind of x-y carriage... Are you aiming at > super low cost for free-publishing and buildable by almost all? I have no definite plans at the moment. > the rake angle of your drills sometimes are pulling the material in > closer and cause an oscillation or a pull around the pivot point > your one hand creates if you slip some... I use the same technique I use for scroll sawing - one finger on each side of the drill. > I don't know if your carbide PCB bits pull or not at the moment. They seem to go where I want them. The deviation of the bit itself is far less than the alignment accuracy of the two halves of the board. Off by 10 mil or so - this is my first try at double sided, I need to try a few techniques and see which is most accurate. I'm thinking of switching from toner transfer to photomask. Then, I can drill the board first and use the holes to line up the print. _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user