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To create bolts for the fixation of the bookshelf the void spaces are used as a starting point. They are extended using a new sketch on the same plane with slightly bigger circles with a radius of 8 mm
This time the new created surfaces are pushed only 130 mm inside the geometry
This creates sections which can be later used as nondesign spaces
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Another option to create void spaces is to generate new solids and to subtract them with a Boolean operation from the already existing solid
Finally the Design space for a Bookshelf is created and the optimization model setup can start which is described here.
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