Inside square corner "over-cut?"

[woodturner]

Hello all. Wondering if there is a setting I can modify for this. I've searched the archives to no avail. Trying to make an mdf Shaker style door. I used to get pretty clean corners with "Free Doors" before I got got into V Carve Pro. Using a 90 degree bevel bit and the inside profile with the square corner option. The tool "over-cuts" the corner in the M3 move. I've tried editing the bit setting from 80 degrees to 110. Under 90 gives straight a straight line segment over-cut corner. Over 90 and it starts to do a rounded over-cut. FYI, Alpha, spindle, 3mm per pass to 6mm deep, 8k rpm at 20mm/sec. Any thoughts are appreciated. Thanks.

[steve_g]

I wonder if this will do what you need?
SG

[srwtlc]

A picture of the issue would be helpful. Maybe even the problem vcp file.

[steve_g]

Well… I thought maybe the allowance box was something magic… I took the time to learn what it was about and no, it’s not. I guess Scott’s suggestion for pictures or code is the next step to help us understand the problem better!
SG

[woodturner]

Hi and thanks for the responses. Steve, that is the option I've been using for the inside square corner. I will take a few pics and post on Monday. Below is a test to 3mm deep (1 pass) and the bit (lie to software) at 89 degrees.

MS,14.9,14.9
JZ,8.000000
J2,200.000000,300.000000
J3,2006.500000,324.450012,6.000000
M3,2006.500000,324.450012,0.000000
M3,2009.448120,327.398102,-3.000014
M3,2009.448120,381.501892,-3.000014
M3,2006.500000,384.450012,0.000000
M3,2009.448120,381.501892,-3.000014
M3,2043.551880,381.501892,-3.000014
M3,2046.500000,384.450012,0.000000
M3,2043.551880,381.501892,-3.000014
M3,2043.551880,327.398102,-3.000014
M3,2046.500000,324.450012,0.000000
M3,2043.551880,327.398102,-3.000014
M3,2009.448120,327.398102,-3.000014
M3,2006.500000,324.450012,0.000000
J3,2006.500000,324.450012,6.000000
JZ,8.000000
J2,200.000000,300.000000


Thanks Again!

[Brady Watson]

How's the preview look? Is this where you are seeing the overcut corners or at the machine?

Post the VCP file (after you WinZIP it) - otherwise, there isn't a whole lot we can do for you...

-B