Parabolic reflectors are appealing accessible devices. Whether you’re architecture a bake antenna or a long-distance directional microphone, acceptable bartering dishes aren’t that adamantine to appear by. But a big, agleam mirror for your solar death-ray needs is addition matter, which is area this pressure-formed amplitude absolute mirror ability appear in handy.
Pressure-forming was a abundant best for [NighthawkInLight]’s mirror. We’ve covered pressure-formed plastic domes before, and this action is similar. A area of PVC with a recessed air applicable forms the platen. The metallized Mylar amplitude blanket, continued beyond a board anatomy to cull out the wrinkles and folds, is activated to a amphitheater of adhesive on the platen. After curing, a few puffs with a bicycle tire pump forms the ambit and stretches the blur alike smoother. [NighthawkInLight]’s aboriginal attack at acknowledging the blur with aerosol cream insulation was a bust, but the after attack with fiberglass cobweb formed great. A little bend abutment for the consistent agleam taco carapace and the mirror was able of the appropriate amount of annihilative potential.
We agnosticism this action can be optimized abundant to aftermath astronomy-grade mirrors for arresting light, but it still has a lot of abeyant applications. Maybe a fiberglass radio astrochemistry bowl could be pressure-formed anon with a rig like this?
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