Machsupport Forum

G-Code, CAD, and CAM => G-Code, CAD, and CAM discussions => Topic started by: Keith on June 03, 2009, 11:06:39 AM

Title: Deconstructing Machs Wizards
Post by: Keith on June 03, 2009, 11:06:39 AM
Hi, I often use the wizards in Mach3 to arrive at a group of final cuts that assemble to be the object I'm attempting to accomplish. Sometimes I take the rectangular ,pocket cutting wizard by Kiran and Brian and eliminate all cuts but the last (or a few of the last,when I'm trying to eliminate a radius) to create an 'outside' cut, single rectangle. It saves me a lot of time calculating the moves and typing in the code. I have tried to do this and continue the rectangle outwardly to create an area of a rectangle uncut with and outside to this rectangle  that is a continuation to a larger rectangle that is cut. In other words,I am attempting to predict this outside cut rectangle of a desired size to a  desired sized rectangle of a larger size than the outside of the first outer cut. I've tried to calculate this for odd sized X and Y rectangles and I can never come up with exact numbers. Any ideas on this short-cut I'm attempting?
I'd love to be able to do this with circular pockets as well and could start the origin of the outside cut with a plain old circle (since beginning a normal circular pocket contains a spiral move). Thanks for any help,Keith
Title: Re: Deconstructing Machs Wizards
Post by: Graham Waterworth on June 05, 2009, 07:37:58 AM
you can put a circle anywhere you want like this :-

G00 G90 X25. Y25. Z1. (move to start point)
Z.1 (move just above work)
G01 Z-.25 F25. (feed into work)
G91 (change to incremental)
G03 I-25. (form circle 50mm dia + cutter dia, adjust I command to change size)
G90 (change back to absolute)
G00 Z1. (rapid clear)
M30 (end)

Graham