Machine overcut

[CHRIS2010]

Hi All,

I have a problem that the machine make a full circle cut while the program is a short arc.

I talked to a service guy, and he said that it is MasterCam's problem. I don't think that is the answer because I veried it with solid and Simco, and I didn't see any problem. I think there is a parameter in the machine that control the arclength because the arc is too small so that the machine think it is a full circle.

Anyone has any idea how it happens and how to deal with it.

 

Thank you in advanced.

[Toonz]

just a guess, but I would say that the arc going the wrong direction....clockwise vs. counter clockwise

 

Try reversing it (just the arc) and see if that fixes the problem. I occasionally have the same result come out of Mastercam. A simple reversal of arc direction fixes it.

[nonstop]

if it post i and j then try switching your post for radius. i had the ame problem and that worked for me.

[htm01]

if it's a surface cut i used to get that when i ran a fadal,had to change to not cut arcs in G18 and G19