X3 Lathe ID Undercut

[my87csx481]

I'm trying to program an ID undercut.

 

Easiest way for me to explain it is a straight ID with a shoulder, plunge into the ID at the shoulder for the undercut.

 

Finish pass, I often come up the shoulder face in X into the undercut, then minus in X/plus in Z to generate a 45 angle (35 incl. angle on tool) then plus in Z along the ID....chips don't pack this way

 

I had no problem in X2 (or X, or 9, or 8) doing this....just adjust plunge parameters. X3 won't let me plunge into the corner undercut no matter what I set in plunge parameters.

 

Help please.

 

Edit: It won't do it if I reverse the chain to a more orthodox direction either.

[my87csx481]

Further Edit: Also, it behaves correctly if I have cutter comp set to control....the "no plunge into the undercut corner" problem occurs when I have cutter comp set to computer (the way I almost always use it).

[my87csx481]

Figured it out....

 

Had to do with bad tool clearance boundaries....maybe I screwed up migrating my tool library from X2

[Philcott]

Just a guess. Do you have the plunge parameters set to clearance?

 

Phil

[my87csx481]

Well, I thought I had a botched install because I deleted and reimported my .tools library and the import errored out, mcam locked/shutdown, and the tool boundaries still got messed up....so I started fresh, with a fresh install of X3, and fresh directory imports. This time the import directory did not error out, but still, all my id tool boundaries are messed up....not just the one I'm trying to use now. Maybe a corrupt .tools library? or just not importing properly through X3? I dunno....possible bug....but more than likely operator error

 

Phil: I almost always use "tool width"....but I did try clearance angle of .5, 1, and 2 degs too. The tool has 3 end clearance with a 35 diamond insert, so it will do a 45 degree back chamfer without any problems....even if I used 3 degrees clearance on the plunge.

[my87csx481]

Can somebody please walk me through an import .tools directory....as if I am 2 years old. For some reason, I can't import my tool library without some sort of mcam error/crash, or the tool boundaries being changed.

[gcode]

If you try to import a library into X3 and use it right away, you will crash.. Its a reported

and aknowledge bug

the workaround..

Open a new ( and empty) MCX file import the library

Save it and close mastercam

Now you can use the library in other X3 files without crashing

[my87csx481]

Unhandled exception occured - same error I always get.

[my87csx481]

Sorry for bumping this....

 

The problem is with the tool clearance boundaries...with ANY id tool....old, new, newly created....the GUI shows "end clearance" on the side, and "side clearance" on the end of any boring bar....this is the problem and why the boundaries for all id tools are incorrect.

 

I had to go through all my id tools in my library and re-select the end as the side, and the side as the end so the boundaries are correct based on the incorrect labeling. I have to do this for any new tool I create as well.

 

Hope this helps.

[Mike S @ S4A]

check the primary cut/plunge directions on the parameters of the tool....reversing these changes which clearance is side/end