Over in Gauge One land we have a public forum called the Gauge One 3D Circle and there are a couple of threads there on resin printing that might interest folk here – links below.
All of the messages in the forum can be read by anybody. If you want to post something, you have to join.
1. My own thread on starting with an Elegoo Mars:
**LINK**
2. Markus Neeser's thread on using special resin to directly print waxes for investment casting:
**LINK**
Adrian