Step 4: convert to sheetmetal and unfold.
Step 3: add a flat flange in order to unfold This dummy section gets 'discarded' later I use a thickness of 20mm but any thickness will be okay. It needed to be hollow in order to be 'sheetmetal'. So what I did was use the 'sheetmetal' function, so that I could correctly wrap, and lofting to get the interweaving. the edges would be uniformly vertical when they should follow the curve, and it doesn't allow the interweaving of the letters. I played around with the surfacing mode first but that way led to madness! Extruding the shape from a 2D drawing is very straightforward in F360 but left me with two issues it doesn't properly wrap to the cannon barrel i.e.
The method I'm going to describe is undoubtedly not the only way even in F360 so feel free to chip in. While the barrels are simple to model in CAD programmes, the cyphers take a bit more work and I agreed to share the way I did this one.įirst, a bit of preamble: I work entirely in Fusion 360. A bunch of us are creating STL's of a range of English cannons, a group project led by Allan.
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