Scott

I know how frustrating modified platform printers can be... Its making me nervous for my build. I was going to try to mimic this for my ink system for my build: Its for a P600 but it might help you. Don't give up, even if the uv ink doesn't work out you still have a fully functional platform printer! You've made it further than most and your other prints looked very promising. If you do give up on your UV system then I might be willing to buy some of your the UV light parts if you already purchased them.

Hey, I had a similar problem with a platform printer based on an epson r2400. It was a non-pressurized system which had the ink bottles hooked directly to dampers. I found that if the ink system was completely sealed then it could sometimes create a syphoning effect and all the ink would drain from the printhead. The fix was to leave the caps a little loose. You could also punch a breather hole into the bottles but I'm not sure it would be a good idea with UV inks. I would recommend you disconnect the pressure system, loosen the caps on the bottles, and try different mounting levels with the inks. I'm just waiting on my boards to come in and I will be attempting a very similar build.