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Printing a Blinker Lens

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I've been thinking for some time about 3D printing replacement
lenses for the front blinker lights on my car. Stones crack them
easily and it's an old model so spares are scarce.

There are details here about making clear prints, and the original
lenses are slightly diffused so it doesn't need to be perfect
anyway:

https://fenneclabs.net/index.php/2018/12/09/3d-printing-transparent-parts-using-fdm-fff-printer/

But another aspect is longevity - will the light from the bulb and
the sun soon break down the plastic, or turn it opaque? I know PLA
breaks down, how about ABS or PETG?

Has anyone done clear prints for outdoor use before and seen how
long they last?

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Printing a Blinker Lens Computer Nerd Kev <not@telling.you.invalid> - 2026-01-08 17:25 +1000
  Re: Printing a Blinker Lens vintageapplemac@gmail.com (scole) - 2026-01-11 10:37 +0100

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