Robert Howle wrote:Perpetual, what curing is being done by u and what method. Also what cleaning method are u using to remove uncured resin after printing?
Aside from using B9 LED lightbox (short cure times) instead of a cheap nail curing box (hours to cure), I have not really changed my cleaning/curing process much. I just rinse my models under warm tap water while rubbing with fingers wearing a disposable rubber glove. Then I drop it into a small beaker with warm water and a few drops of rubbing alcohol while rubbing with fingers once again. Then its rinse clean under tap water before it goes into a waterfilled beaker and into the B9 LED lightbox for about 5 mins x 2 sides. I used to cure models in a cheap nail curing box for upto 4 hours when I used B9 red/cherry mix and never had any issues during casting.
If it has nothing to do with a contaminated beaker (I had some metal paper clips left in the beaker that turned rusty), I'm going to guess it may have to do with my LED cure times. I will have to put prints in the LED box for much longer and try rotating printed models in four directions. Uncured parts seems to be the most likely cause.
The first time I ran into casting issues with B9 Emerald, I had cured parts for 5 mins x 2 sides and thought the issue was a contaminated beaker. I reprinted a second time using a clean beaker and cured for 5 mins x 4 sides and the cast came out very well.
The recent print came out bad again and I had cured for 6 mins x 2 sides only. Will try and leave it to cure for much longer next time.
How long do you all leave your prints in the B9 LED box for?