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First surface mirror, Aluminium, Glass or Acrylic?
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Re: First surface mirror, Aluminium, Glass or Acrylic?
Does the thickness of a first-surface mirror change the quality of the reflection from the projector at all? firstsurfacemirror.com offers thicknesses of 1.9mm, 3mm, and 6mm.
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Re: First surface mirror, Aluminium, Glass or Acrylic?
There really should be no need to brace even at 1.9mm, it's a piece of glass so if it's flexing there is a issue. I have no idea how it would flex in this kind of application though?
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Re: First surface mirror, Aluminium, Glass or Acrylic?
You're not placing a load on the mirror so probably the only issues are vibration, and heat distortion. I would insulate the mirror from it's mount with double sided adhesive coated cork, and/or foam, with a few perimeter mirror clips if the bond fails.
I'm looking for a first surface mirror from a discarded rear projection TV.
I'm looking for a first surface mirror from a discarded rear projection TV.
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Re: First surface mirror, Aluminium, Glass or Acrylic?
Heat? How close do you think the mirror sits? Unless you run a double folded design no way is the mirror getting too hot, even then I very much doubt it. You could ask Edge he runs a double folded design and I didn't see any insulation on his mount, can see that being a issue in the least.
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