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Show HN: 3D printing giant things with a Python jigsaw generator
Automating the processes of splitting up large 3D prints into smaller parts with dovetail joins
I already wrote a system to place the parts nested on individual beds; I decided to adapt that code to also be able to split up panels into a what is effectively a jigsaw. Note that x-axis is half way up tooth.Step 2: Chamfer edges with a ratio of 1:1.4 to allow lockingStep 3: Round internal and external edges with a quad offset(), intersection to remove the unwanted roundoversStep 4: Subtract a negative offset of itself to form an outlineStep 5: Subtract the sacrificial tabStep 6: Extrude the individual tooth as we enter 3DStep 7: Scale the extrusion by the same ratio (1:1.4)Step 8: Remove the sides which interfere with the mating teeth This would involve evaluating potential cross-sections of the model for complexity; a simple heuristic of the number of faces in a given cross section would be a good start.
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