Suggest a search on the keyword "lofting", this is similar (maybe) to your problem.
> -----Original Message----- > From: Viesturs Lācis [mailto:[email protected]] > Sent: den 12 mars 2011 23:30 > To: Enhanced Machine Controller (EMC) > Subject: [Emc-users] CAM-related question > > Hello, gentlemen! > > I would like to ask, if anyone has an idea, how to create a code to > produce this kind of part (both files contain the same model, I just > saved it in 2 different formats): > http://www.cutting.lv/fileadmin/user_upload/Test.IGS > http://www.cutting.lv/fileadmin/user_upload/Test.STL > > My goal would be cutting this part from thick slab of material. Those > flat planes represent top and bottom surfaces of the slab. > Basically I would like to get code, in which the waterjet (or any 5 > axis plasma or cuts a circle on the top, but rotary joints that tilt > the head would move so that something like a square is on the bottom. > > So the problem is finding out the necessary tilt angle, which > corresponds to the slope of the edge. I thought that it could be > something like dividing the top contour (in this case - the circle) in > 0.1 mm segments and then getting the slope angle, but I have no idea, > how to do that. > > Can anyone recommend some kind of solution? Is there some _affordable_ > CAM application that can do that (I have found one that costs 12K EUR, > but I do not even consider that to be an option)? Or can I calculate > that myself with some trigonometry? Since I know the distance from one > plane to another (that is the thickness of material), I would need > only horizontal distance from one line to another to get the angle > with atan function. The distance between both lines could be > calculated in 0,1 - 0,2 mm increments. That would not affect the > quality of the result and probably would not create insanely long code > for such a small part. > > I would appreciate any ideas on this matter. > I think that any solution that works will do! > > Thanks, > Viesturs > > ----------------------------------------------------------------------- > ------- > Colocation vs. Managed Hosting > A question and answer guide to determining the best fit > for your organization - today and in the future. > http://p.sf.net/sfu/internap-sfd2d > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
