On Plasma / Oxy-fuel cutting this is done with an capacitive (or inductive) circular sensor around the cutting tool. That way it doesn't matter in which direction you're cutting. Of course those only work with metals.. not pumpkins (but that's a different issue :)
Regards, Alex On Mon, 2007-01-29 at 10:31 -0800, ScottV wrote: > I would think that you would need two sensors, one for each direction of > cut. Or move the sensor. > > But you could cut in one direction, retract, return to the start, > increment the rotation and start the next cut. > Extra points if you work out a time delay between when the sensor read and > when the bit reach that spot. > > If these are through-cuts you would just need a really long tool and an > approximate start depth. > Bornemann makes some long rasps for cutting foam - might work on pumpkin. > We have some 1/2" diameter 7" long ones on order. > > ScottV > > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
