Originally Posted by buckey29  I have Bobcad 21. I'm trying to do a very SIMPLE pocket.
I create a letter "A", then convert to verctors and pocket. The triangle in the center of course becomes an island.
I've tried this with 3 different fonts - all same issue.
Problem is that when I create the NC code, I seem to get an extra line of code that Bobcad inserts. That the top of the triangle (the island) or the lower right - it creates a circle.
One one I could see the issue clearly in the SIMULATE function. In another I couldn't see the problem until I tried to run it on my CNC Mill.
Is this a "known problem" Or am I doing something that could be causing this?
Addl Data: A - size 3.5, bit 1/4", step over .100, roughing pocket .25" deep in one pass.
Thanks for any thoughts or suggestions. Even if its a confirmation that its a known issue. COuldn't find any info on their site about it. |
Buckey29,
What your experiencing is called a Crop Circle. Your post processor is doing this and it can be corrected.
Open your file then the CAM side of the software. In the Main Menu on the CAM Side>Setup>General
Set the Max Circular Arc Movement according to what your machine can handle. If your not sure set it too Quarter. This will eliminate the Crop Circles.
One question I have is, "Are you using "I" and "J" or "R" Designations for Arcs"?