PCB UV Etching

I was wondering if anyone has gotten there form 1 to etch photoresist on copper clad boards. The Pegasus touch calmed to have done this this here, however there has been no followup to my knowledge. It seems possible to etch a board using a UV laser using this concept.

Here is my project idea. I want to use a form 1+ to etch UV reactive pcb and use the resin to add a solder mask. The power of rapidly prototyping PCBs and parts from the same device is very appealing.

Any and all ideas/resources/proof would be greatly appreciated.

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