Surface finish contour crash

[G Caputo]

Hi all,

 

I am having a problem with 2 surface finish contour operations. I have a casting coming in that should have approximately 1/2" stock on all surfaces, that I am trying to program to +1/8" to send out to get the deep holes put in. I have two operations that crash into the face instead of using the entry line length of 3.25" that I have entered. This only happens on 3 depths of cuts, all the rest are fine.

 

I have uploaded on file on the FTP in the mcam9 folder named "GREG CRASH.zip". The operations where I am having the problems are #2 at Z-6.0725, Z-6.9655 & Z-7.1441 and operation #10 at Z-9.7228, Z-9.8986 & Z-10.0745 depths.

 

The tool I am using is a 5" carboloy octomill that I have defined as a bullnose cutter. I am running mcam 9.1 MRO304 from a fresh install with all the patches.

 

If anyone would please look at this file and tell me what is causing this, it would be greatly appreciated.

 

Thanks,

Greg

[cqualls]

Check out Greg cq and see if this fixes your problems. In the advanced settings tab I checked automatically, I also added a containment boundary, then checked allow arc, line box outside boundary. This fixed the entry issues on the #2 (everything on #10). To fix the exit I added .2 to the arc radius and arc sweep.

[G Caputo]

CQualls,

 

That is exactly what I was trying to get it to do! I will definitely look over the different settings you changed and read the help to learn more about what I was doing wrong. Thanks a bunch for your time, effort and knowledge. It is very much appreciated.

 

Greg

[cqualls]

Glad to be able to help

[Code_Breaker]

Hey, you guys are too fast for me . . .

 

I have been working on it (in spare time) and basicly came up with the same solution as CQualls.

 

Oh well, at least I got the experience to find out for myself. Thanks for the confirmations.

 

 

Code_Breaker