Tons of rapid collisions after CAM update

[Tbaker25]

After the last update, my simulation timeline is completely littered with red lines, rapid collision with stock. Anybody else seeing this?

Tom

[ProteumMachining]

Yes I've seen a lot of problems with adaptive and collisions after the update.  It seems to imply its colliding with the floor on occasion.  Sometimes, I can get rid of them by adding a lift height.  I've been trying to find the time to create a screencast or a file I can send to support.  I'm even having trouble with 2D pocket and geometry sometimes.  I get all of this on 3 separate computers on different networks running between Win 7 and 10.

[Tbaker25]

Yes. I almost to the point of ignoring the errors, which is a terrible dangerous thing to do.

[ProteumMachining]

Yep I feel the same way.  I spent almost an hour last night between bugs I had with pocket and collisions with Adaptive.  I'm pretty upset to have such a buggy update, but glad I'm not the only one (as I felt I was losing it).  I can't afford to take the time to work around the program. @al.whatmough  I'll send the file I have on my other computer when I get there later today.  

[Tbaker25]

Currently working on a mold with over 100 passes, and suddenly most of them were riddled with errors. 

Glad I'm not the only one, too!

[al.whatmough]

Guys, can you either invite me to your project or send me the files.

Al Dot Whatmough at Autodesk dot com

I will get Dev to take a look at this ASAP.

@Tbaker25 @ProteumMachining

[Anonymous]

Yep, same thing! Thought it was just me. See attached .f3d file- The facing op and the final finish op are fine, but my 3d and 2d adaptive clearing are riddled with "Rapid Collision With Stock" errors. Ran the file, no problems at all.  

[Tbaker25]

Okay, I invited you. The file is Boxes Mold 2, the passes are under B-Side Insert Milling.

Thanks.

[Tbaker25]

Hey, while you are there... 🙂

Could you figure out why I get my passes invalidated every time I load my file up again? I have to protect the passes to keep that from happening. I has been better, but been happening again the last several days.

[fonsecr]

I opened ticket #4489 for this issue.

I'm going to turn off collision detection for the non-engagement moves for Adaptive to avoid false positive due to the tool slightly touching the stock when lift height is set to 0.

I did look at one example I got. And there were genuine collisions in the example. When using Stock Contour override for an operation you have to make sure that the stock defined is including all the stock left.

The next update is scheduled around July 13 and I'll get this change included in the release. You can use the lift height to avoid the non-engagement false positives for Adaptive.

If you do see other false positives then please let the support team know so we can address these separately. Thanks.

René

[Anonymous]

I brought this up a few days ago in a different thread but never got a response from Autodesk.  

After seeing a ton of collisions being reported when trying to create tool paths on a new model I went back to an older file knowing it had good clean tools paths and regenerated them,  they come back with a ton of collisions now! 

[Anonymous]

Not sure if you were referring to my example or not- I had stock contours turned on for some reason, but none selected. I toggled it off and got the same result. 

Just to add more data to your troubleshooting pile. 

[fonsecr]

Ok. For new toolpath you should try to set the lift height to a small value. But with the next release that particular non-engagement problem will go away.

Rene

[Anonymous]

Adding the lift does decrease the problem significantly. Putting in a .005" lift took care of most of it, and the remaining collisions may be legit- Not sure. Even if they are, I'm not sure how to fix them, but that may be another story. 

[fonsecr]

Thanks.

[Anonymous]

I tried that already,  collisions are reduced a little but are still prevalent.  I tried Lift heights  of  .005,  .06.  and .125  Still getting collisions.   When is the next release?  I wasn't able to get work done over the weekend because of this. 

[ProteumMachining]

If anything is deserving of an early pushed bug fix, this would be it.  I also continue to get errors adding in a lift height.  It eliminates a lot of the collisions but there are still 2 or 3 here and there.  It makes simulation nearly unusable and I have programmers wondering if they should even use adaptive right now because they can't know if the collisions are real or false positives.  @fonsecr 

I sent my file in last night @al.whatmough  hope you got it.  

[fonsecr]

Yes, I looked at your file. The reported collisions for your 2D Adaptive operations were correct. You need to update these. Your selected stock contours are smaller than the actual stock left by the previous operations.

René

[Tbaker25]

Have you had the chance to look at the collisions in my file?

Thanks

Tom

[ProteumMachining]

@fonsecr I get collisions in pretty much all my files using adaptive, that was just an example. Even with .06 and .1 lift I am getting collisions through any 3D adaptive on any part slightly more complex than a box.