open the PRT "which contains everything"
For each "part insert" right click "Open in context"
then re-edit each "part insertion" and check "Personal properties",
then there is a choice with 2 boxes (this is the destination), choose "Welded parts list"
for the built PRT , it's a little more subtle, either we treat it as a simple PRT (do as above),
or we go back down the information from the profiles....
do "control+Q" between each insertion
then in the MEP deleted the "ASM Table",
select a view, then insert "Welded parts list"
then choose the right columns you want, you get this (see image)
Note Methodological BE :
in the design offices I went to, for boiler assemblies like this, complete abandonment of the "part within part" method because for sheet metal work it can become too complex, and for the function "move body (constraint mode)" it's a buggy function from the beginning, unstable after a while, and this has never been solved (moving in absolute mode is already a little less buggy).
And when you have to change a component by the same one of another size, everything goes awry: in the asm we lose our constraints, in the MEP the dimensions are wobbly...
So we used ASMs (with the "part mode" option) and in config parts, for the welds, we had a library of 3d representation to config, the same for standard profiles to connfigs, or use of the "ASM-PRT hybrid mode".
In addition, if you want to do calculations, you export the ASM in PRT, which allows you to make adjustments for the calculation, without modifying the original.
Time saving for the user, for MEPs, for modifications, size changes, or others...
With the ASM mode (and therefore library in configs) the loss of constraints, and in the MEP the wobbly dimensions , all this disappeared, no longer hesitates!!
And the time to make a modification that was counted in hours in "PRT in PRT" mode simply becomes a few minutes (or even seconds)...
Time saving for the BE = PHENOMENAL !!
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