I would like to share my mini UV exposure unit I built.
I found making airtight is the biggest issue.
So I used Gocco Printer from the’70s
For small project like postcard size image, using a thick foam pad and acrylic plate on top did work to make airtight.
Please check the detail: Turn Gocco Printer into a UV Exposure unit
Turn Gocco Printer into a UV Exposure unit
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