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The .dxf of the mandrel is here. 2 of these need to be foam cut. 18.5 inches long. This has been converted to a .dat file here.
The foam cutter will follow the following path:
There is a second version of the .dxf for cutting in
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quarters here. 4 need to be cut, 18.5 inches long. This has been converted to a .dat file here.
The foam cutter will follow the following path:benefit of cutting into quarters is that foam doesn't have to be glued together before cutting.
The following .dxfs are for the casting hardware. They should be waterjet from 1/8in aluminum sheet.
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Manufacturing Tests
| Date | Mandrels Made | Results |
|---|---|---|
| November 28, 2018 | None | Tried feeds and voltages. Significant trouble gluing stock |
Todo
Acquire larger foam, or make foam gluing jig
Feed, speed, and voltage for foam cutter
waterjet end plates
tap end .plates
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| January 13, 2019 | 5 quarters / Gluing in Progress |