Hey, Tom!
The tool walls and core were assembled together before the pour. Once assembled, resin was poured through the big sprue channel cut into the base of the core element. In this shot you can make out the punch used to cut out the sprue and vent channels through which resin is introduced and displaced air escapes.
The resin is poured into the assembled tool with the sail cavity up-side-down. The sail tool is in foreground, the tail-cone tool is just behind it.
After the resin cures, the tool is disassembled and the cast resin sail pulled away from the tool cavities and core to reveal the desired hollow part.
And that's the name of that tune!
David
The tool walls and core were assembled together before the pour. Once assembled, resin was poured through the big sprue channel cut into the base of the core element. In this shot you can make out the punch used to cut out the sprue and vent channels through which resin is introduced and displaced air escapes.
The resin is poured into the assembled tool with the sail cavity up-side-down. The sail tool is in foreground, the tail-cone tool is just behind it.
After the resin cures, the tool is disassembled and the cast resin sail pulled away from the tool cavities and core to reveal the desired hollow part.
And that's the name of that tune!
David
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