Axis Substitution Bug? Or something else

[Guess_who]

So a co-worker of my asked me to look into this. He is trying to do an axis substitution which he says he has done many times prior to MX7. But for some reason when he does this Mastercam X7 position the -B- axis 90 degrees off.

 

I do not normally use axis substitution, so I have no idea why this is off. I was wondering if someone out there can confirm that this is a bug or possibly that we may be using this wrong.

 

In my sample file I have two operations. The first is using Axis substitution, and if you post it, you can see that the -B- axis starts the cut at about 97 degrees.

 

The second operation, I used curve 5th axis. This is the method I would normally use. And when you post this one the -B- positions correctly at about B7. degrees to start the cut.

 

Note that we program our horizontals using the top plane as -B- zero, not the front plane. So this may not post out correctly your horizontal post.

 

Any help would be appreciated.

 

thanks

 

Ray

 

 

29694_test_output.txt

 

29694_TEST_SUBMITT.MCX-7

[Aaron Eberhard]

Hey Ray,

 

Obviously I don't have your post, so I can't test the output with your exact settings, but I noticed that on your curve5axis, you have it rotating around the Y Axis (which is correct based on my understanding of your setup), but your Axis Sub toolpath is set to rotate around the X, which would shift everything by 90*...

[Guess_who]

Yes, we rotate about the Y.

 

On the substitute Operation, its greyed out, but it is rotating about the Y as well, but the axis that it is being substituted is -X-. I did however try to switch that, and the result was not correct.

[Aaron Eberhard]

Ray - Would you mind posting up a z2g with the post so I could take a look for it, or if you're not comfortable sharing it on here, send me a PM and I'll tell you how to bounce it over to me..

[Guess_who]

Aaron, I sent you a message.