I've put together a spring assembly similar to the "How to make an animation for a compression spring" tutorial:
http://grabcad.com/questions/how-to-make-an-animation-for-a-compression-spring-in-solidworks-2011
Which is sim to: http://www.youtube.com/watch?v=7PiuSpa-7QU
The initial setup works great. The spring updates to the top plate position during the entire animation. Now I need to show this spring in an impact limiter assembly. I add a couple parts, everything seems ok. Then I an a sub-asm and then the rebuild during Calculate update stops.
I delete the parts I added, still no rebuilt.
I close the asm and reopen, no rebuild.
I close SW and reopen, rebuild works.
I ten replace the upper and lower plate with an actual part being used, replace the constraints, then the rebuild quits working......again. I replace it with the original part, no rebuild. Close and restart SW, rebuild works again (except still the old part).
At any time, I can force rebuild and the asm will update. But the auto-rebuild in the animation just stops working at seemingly random times. So how Mattias R got his asm to move so fluid in his youtube video seems impossible to me.
So I feel like I'm missing something obvious. Any suggestions?
SolidWorks 2012
Windows 7
I think I've found my problem. "Large Assembly Mode"
For some reason, my "Use Large Assembly Mode" was set to just 10 components. And when L.A.M. is active, this also 'Suspends automatic rebuild'. Thus why my simple spring worked fine, but then quit working all of a sudden after I started adding parts to the asm.
So, I think I've found my solution. I'll update if this doesn't solve all my problems.