I have been using DPT-Fast for SLA models. This is cheap and usually
will serve my purposes. There is quite a bit of pixelation, but if
used at the right times has bee very good for me.
I am having a moodel done today by M2 systems. They use Sanders
machines which provide better resolution but are much more expensive
and are wax true wax models. In addition, they have a new German
made machine which provides extremely good resolution in acrylic and
ring models are being done for$100.
bruce Bruce D. Holmgrain JA Certified Master Bench Jeweler