There is no need to spend a lot of time trying to model bolt cage accurately if the drawings can be annotated to get the final accurate final intent
Here I am showing an example of a bolt cage. There is not need to model the helix to avoid the clash. No one can make a lig with clash. Physically impossible. So no need to model avoiding clash. Let it clash. When the fabricator makes the lig he will do it without clash.
Also,
another point to note is that we need not model tight to the anchor rod. Let one side extend a little bit to avoid the radius riding into the anchor bolt. It will be easier for modeling and manufacturing. There is no compromise in the final intended outcome.
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