It is possible to modify the sheet metal k-factor bend table, but only if the radius / thickness is different between configurations. If it is, then simply put the ratio in one of the columns of the bend table.
For instance, if you are using 7 ga. steel in one configuration and 7 ga...
I can think of one reason to disassociate them -- sheet metal. If your weldment has any more than one sheet metal part in it then you have to "disassociate" them, since SW won't allow multi-body sheet metal parts (at least as far as I know).
I developed a workaround for this issue some time ago. And as far as I know, it only works between 4 to 14 ga. steel, but I believe it could be modified to work with other materials. Maybe it’s not exactly what you want, but it worked for me for a while (I actually gave up trying to link...
Assuming you have a fixed rotating pinion moving a linear rack, this was my workaround pre-07. I simply set up an equation that calculated the pinion rotation angle based on a linear distance that I would input.
If
P = Pinion position angle
D= Linear travel of rack
RP = Pitch of rack
T = # of...
Next time you might try the Insert Bends command. If I understand your question correctly, this feature will take a previously non-sheet metal body and add bends to it assuming it's a seperate part.
FYI - that product only works when drawings have the same name as the referenced parts/assemblies (i.e. drawing numbers and part numbers must be the same for this feature to work properly).
We don't number drawings and parts the same. Consequently, I am currently having this same problem...
