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Some frustration using sketch blocks

Some frustration using sketch blocks

Some frustration using sketch blocks

(OP)
I have one assembly sketch that about 15 parts are derived from. The assembly master sketch contains several different blocks for the different parts. I created the parts in assembly, created part sketch, then highlighted the appropriate assembly master sketch block, and convert entities. Now when the design assembly is almost complete I need to make some changes I am having some problems:

1. When I edit a sketch block and mirror some lines the derived part does not update and I get the part error: "This sketch contains dimensions or relations to model geometry which no longer exists..."

2. When I move a sketch block in the assembly master sketch the derived parts come up with the above error.

Are sketch blocks bugged or am I doing something wrong?

RE: Some frustration using sketch blocks

Probably neither, but you may be expecting too much from SW.
It sounds like you have changed the sketch block in a way that the models sketch cannot interpret.

Have you tried to edit the models sketch & checked for dangling dimensions or geometry with broken constraints?


Helpful SW websites  FAQ559-520
How to get answers to your SW questions  FAQ559-1091

RE: Some frustration using sketch blocks

(OP)
Yes, the original sketch doesn't contain any dimensions.

When you convert entity (say line100 - line103 for instance) from an assembly sketch to a part sketch,  then extrude those lines in the part file to make a solid, as long as you don't delete the orginal assembly sketch line101 shouldn't you be able to move the line anywhere and the part sketch will update automatically? (whether that results in some geometry error is another matter) If so, is a sketch block maybe more than just a grouped collection of individual lines and such so that line101 isnt referenced alone but rather as part of a block?

RE: Some frustration using sketch blocks

You mentioned mirroring in the OP, so I assumed you were creating new geometry & by doing so you could  be changing the line IDs. (just guessing). Unfortunately I don't have access to SW06 so cannot investigate, but one of the main purposes of the Sketch Blocks is to be able to update the associated/derived parts by modifying the sketch.

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