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I've done some projects like that, although not with as many parts! I think the main disappointment that awaits the author is that within two years or so, the e
by hinterlands 1y ago
I've done some projects like that, although not with as many parts! I think the main disappointment that awaits the author is that within two years or so, the epoxy will turn yellow. These resins are unfortunately not UV-stable, even if kept in a reasonably well-lit area indoors (bookshelf, etc).
There are resins you can use for projects like that if you want them to last, but they're less fun to work with.
- fellerts 1y agoModern epoxies often claim to be UV stabilized, and as far as I can tell, this is a relatively recent advancement. For reference, I used Entropy CCR (slow cure) for the final model: https://entropyresins.com/product/ccr-clear-casting-epoxy/ https://entropyresins.com/product/ccr-clear-casting-epoxy/ I guess we'll wait and see!
- hinterlands 1y agoWe had UV-stabilized resins for the past two decades or so, but it just slows down the process. I used several UV-stabilized products and it just doesn't last. For the UV-stable options, you have polyesters (which are very smelly) and premium aliphatic polyurethanes (which are finicky to work with).
- hunter-gatherer 1y agoWould putting some UV filter glass, the kind often used in museums, work to protect it the resin? I'm wondering if you fixed a glass casing around it that way... granted you'd have corner seems for the glass though
- cyberax 1y agoMaybe a cylindrical glass instead?
- fellerts 1y agoI tried that. Refraction makes it hard to understand what you're even looking at. https://fellerts.no/img/epoch/first-cast.jpg https://fellerts.no/img/epoch/first-cast.jpg
- cyberax 1y agoI was thinking about a larger with less curvature glass. It might also be interesting to see if it's possible to match the refractive indexes of the epoxy and the glass.
- lukan 1y agoYellow and not transparent anymore? Or just a yellow tint?
- hinterlands 1y agoJust an orange-yellow tint. Here's a good example: https://preview.redd.it/k98iwl9flsk71.jpg?width=1080&crop=smart&auto=webp&s=587949cfc6ed555206e6b704f73467db43327ed3 https://preview.redd.it/k98iwl9flsk71.jpg?width=1080&crop=sm...
- lukan 1y agoHm, the left example does indeed looks bad in the sense of loosing transparency. But it was kept in direct sunlight.