I'm preparing the process I'll take for making an Alien head. I'm going to carve the bulk of it out of extruded styrofoam but I want the dome to be clear, allowing people to see the skull underneath it and also allowing me to see through it. I've bought a couple of sheets of clear A1 1mm PETG for this task. My plan was to carve the dome first out of the foam, coating it with plaster of paris for strength and heat protection and then heatgunning the PETG over the shape. After forming the dome, I'd cut into the foam buck and continue carving the skull and details underneath and glue the clear plastic shell over the top of it.
My question is how much flexibility will I get from the PETG? I've curved simple visors in the past but the curve on this dome will be on more than one axis so is this doable?
The shape isn't terribly detailed.
The alternative is vac forming, but that's more time and money that I'd want to spend building one.
My question is how much flexibility will I get from the PETG? I've curved simple visors in the past but the curve on this dome will be on more than one axis so is this doable?
The shape isn't terribly detailed.
The alternative is vac forming, but that's more time and money that I'd want to spend building one.
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