Alan Condit wrote: > Jon, > > Thanks for replying. In fact the example that you cite is the one > that I tried which reported "Concave corner with cutter radius comp" > error. Oh oh! Well, I guess it depends on the cutter diameter you specify, but that code should work. I will have to check it and revise the page when I figure out what is wrong. In my code it appears to barf on either the line where cutter > comp is turned on or the one immediately after it. Interestingly, > axis seems to draw the correct tool path and it runs OK on the > simulator. Well, that is about what I expected. You have to make the angle of the approach such that it doesn't have any inside corner. The tricky part is that move has the cutter's radius of offset interpolated in over the length of the move. So, the move starts with the tool center equal to the commanded position, but ends with the cutter's center moved over by the cutter's radius. This forms an angle to the commanded move direction. If you move the start point at a right angle inward (assuming you are cutting the exterior of the part) to the part by the cutter radius plus a hair, then the lead-in move should be nearly a straight line into the point where it complains. That should fix the problem. You have to make the same adjustment on the lead-out move.
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