I am trying to break up a large, branched stl model that I want to 3D print so that it is more manageable. My plan is to cut off the branches and model a joint and socket onto the exposed faces, but I want them to align well on the complementary sides of the cut.

In my mind, it shouldn't be difficult to make the cut (Which I know how to do) and then select a resulting face and specify its normal vector and the new relative orientation for the joint body I want to add at the location. It seems easy but I am still a Blender beginner in a lot of areas.

  • $\begingroup$ Could you please show some screenshots? Doesn't the Snap option (Face mode) help? $\endgroup$ – moonboots Oct 18 at 8:35

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