Yea, for the immediate short term I decided to proceed down the $25 DIY route: ultra-cheapie cardboard/foil/cheapo solar turn table/cheapo LED blacklight strip to start just so I have SOMEthing for the time being. The sun is just not consistent enough, and related "cure times" do not translate into useful indoor cure times.
But I'm also designing a "real" curing machine for the long term, big enough for my max build volume plus a bit, pricing quartz glass (very high UV transmissivity, not cheap ~$200 at McMaster for 6"x6"x1/4", debating on minimum size still or looking for a less ideal transmissivity material to use) for the base plate and all that good stuff.
What ballpark-estimate curing times are you using, and what's the UV-wattage of your curing machine? 365nm and/or 405nm?
I've dug around for info on curing times for a given UV wattage and the best I've seen is "try a given curing time out, bounce your model off the table" kind of folksy "metrics" to gauge final cure times for a specific commercial curing machine model. Not terribly useful when you're building a curing machine from scratch. I'm trying to figure out what the optimum "normal" UV wattage is for a curing machine, then beef that number up a bit since I'm thinking of using indirect lighting for the cure to get better UV scatter.