Hi, everyone… I was looking for a little help with a project OUTSIDE the realm of the printer itself but in relation to resin.
So to preface what I am doing is taking a drop of clear resin, placing it on a small plastic disc and letting it self level/dome to form a miniature lens for miniature glasses I am making. Once self-leved the “lenses” look amazing, so I then place them under a UV light I bought on Amazon linked here --> https://www.amazon.com/gp/product/B07ZF9J3CF/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
The clear resin cures VERY quickly, EXCEPT for the very outside layer. No matter how long I leave the resin discs under the lamp the very outside NEVER cures. Is this because of the whole oxygen preventing curing thing? Once cured I can wipe off the outside uncured portion and I am left with a lovely disc of cured resin underneath, but by have to wipe it off it eliminate the absolutely PRISTINE , smooth outer appearance of the lens. Don’t get me wrong it still looks good, but it is every so slightly less perfect.
I understand I can place the prints in water and do a second cure to provide an oxygen free environment, but with the resin layer being still tacky I have had issues with the water causing a slight rippling in the surface so when it is cured it actually looks worse than if I were to just wipe off the uncured resin.
I just wanted to make sure there wasn’t something I am doing overtly WRONG, or is it just the nature of UV cured resin.