The union of parametric features tool in connect currently leaves a lot to be desired. If two fully constrained parametric solids are merged any constraints that existed between the solids are gone. Unless they were 2D some 2D constraints persist (which is also confusing). Then you are left with the option to use 2D constraints only to re-constrain the two solids that were already constrained. To make things more confusing any "extrusions" that had variables applied get the variables dropped after the union retaining the last known value.
As a result of this odd behavior I don't even try to use the union tool if I can avoid it with parametric solids and apply imprints to solids and then use the modify feature tool to extrude the imprint.
Hello,
The idea is not new, nor is the answer, and the status of this idea is "Already exists". However I agree with the basic idea. The union of parametric features has a strange behavior. It is very very common that the applied variables disappear during a boolean operation. Even when the "merge parametric solids" option is enabled. Even in 2024...
Hello Grant,
You are not aware of the option 'Merge Parametric Solids' while performing a Boolean operation on Solids to retain inter part of 3D Constraints. Keeping the 'Merge Parametric Solids' option to OFF is a must!
Losing Inter 3D Constraint after keeping 'Merge Parametric Solids' ON is WAD....because here ultimately all Features are merged into a Single Solid and Solids cannot be identified uniquely later.