"IC 142 prints well at 1.6s a layer"
Do you mind telling us the layer thickness as well?
"The IC131 occasionally had some cracking issues in some geometries"
Do you refer to the resin or the metal piece?
"We used a Dymax light box with a UV bulb for an hour on each side at about 30mW/cm2, but any procedure that gives a hard, scratch free surface will give good casts."
You don't specify with unit, but Dynamax curing units can easily run for $4K and up . To deliver the equivalent energy with our UV curing solutions we would have to cure a wax for weeks! Could you repeat your test with some more moderate performing units?
"We did some casting with a local jeweler and found that thoroughly post curing the prints before casting gave the best results"
I don't mean to sound abrasive but I have to raise these questions:
Did you base your research and release two new resins based on the results of a local jeweler?
- Some casting houses use electricity, some use natural gas, does he use both?
- How many types of investment did he try?
- Are we talking about Gold/Silver here or Platinum?
- Is vacuuming and blowing air in the flask pre-casting your suggested workflow? In other words, does the resin leave residue? The facilities I use have arrays of 6 or more gas-powered kilns, with a capacity of more than 15 flasks each. Can you imagine their face expression when requesting them to vacuum and blow air on the flask containing my models?