Rotary post output

[Smit]

Hi Folks,

I've been trying to output a program from a rotary file. I'm using Mastercam 9.1. My post is a modified MPMaster (for a Mori Seiki mill). I'm using axis substitution (Y axis), a rotary diameter of 7.76 and unroll checked on. Compensation turned off (3/8" end mill). The backplot looks good, but when I post it there are some strange G codes in it. Some speed changes, some feed changes, some M0's, etc. scattered through the posted program. It took quite a bit of editing to make a usable program with it. Has anybody else experienced this, and hopefully found a solution?

Thanks in advance,

Smit

[Allan Brown]

If you have Unroll checked on, your geometry should be cylindrical, as opposed to flat. Can you post a file to cadcam's FTP once it's back online?

[Smit]

It is a cylinder. Sure, I can place it on the FTP site.

Smit

[Smit]

I've placed the file in the MC9 directory, it is call drum.mc9

[Smit]

Mr. Thomson,

Just wondering...have you found the issues I mentioned with the post?

Smit

[Allan]

That backplot looked funny.

 

The contour type was incorectly set to a 3D Contour, changed to 2D, then I regened, still no good. Changed to rotary axis positioning set the axis to Y, then changed to Axis substution...All is well. File is on the FTP.

 

DRUM_ALLAN.MC9

 

HTH

[Allan Brown]

In V9.1, the backplot looked funny. Allan's method worked for me, so did repicking your chains and leaving as a 3D Contour.

[Smit]

I chained it again, 2D toolpath (I didn't notice it had defaulted to 3D), and it looks good. Thanks to all for your input.

Smit