What you describe here sounds alot like the TolAnalyst add-in that comes with SolidWorks.
On this forum you can find it under Drawings & Details: TolAnalyst and DimXpert
And here is a link to SolidWorks Help about how it works: 2016 SOLIDWORKS Help - TolAnalyst Overview
There is also a tutorial about usage of this add-in.
Hope this helps!
TolAnalyst and DimXpert is not quite what I'm after. I have played with these but they are cumbersome and time consuming to set up. Our assemblies are complex and unique to each project and we simply don't have the time to mess about with TolAnalyst and DimXpert. However, tolerance stacking is a critical issue and I want to be able to display any issues on the fly.
This is what I've used in Autodesk Inventor:
As you can see, the parameters table shows each dim in a specific model. Each dim can be assigned a tolerance in the sketch which is linked to this very table. All I had to do is select the tolerance modifier to see the variation in the model live.
Another thing that I don't get is that the tolerances I specify in the Solidworks sketch don't relate to anything useful?!? What's the point in putting in the sketch tolerances if they are not used for anything?
Sorry for the rant, I'm just getting increasingly frustrated that Solidworks appears to have some major flaws, or if these options are available, they are not very intuitive to find or use.
There are several partner products with more advanced functionality for tolernace analysis than what you may find in TolAnalyst. You should get in touch with them and to schedule a demo/trial of their fully integrated add-in solutions for SolidWorks.
About the sketch tolerances. These are benefitial when you create drawings. When using the "Model Items" wizard to insert the dimensions from the sketch on to the drawing, any tolernaces specified in the sketch will be so in the 2D drawing as well. And also, if you add tolerance to another of the inserted dimensions, you will see the same tolernace in the sketch of the part.
Here is a couple of gold partner products for tolerance analysis:
See if the macro here fits your needs:
It doesn't update the model live as you select tolerances, but it will create MMC and LMC configurations.
There are some areas where Inventor is better than SolidWorks. There are many areas where SWx is better. This appears to be one of the prior cases. It also appears to be a great suggestion for the Top 10 List . Please follow the link and submit your suggestion.