We found a real bargain, a used UV exposure unit, or a “copying system for the graphic art industry”, as it is stated on the user manual cover. It’s a Sack LCX3, German made, equipped with a vacuum frame, 5000W metal halide lamp, and microprocessor technology from 1980s…

Luckily a user manual (dated December 1994) came with the unit, otherwise it would have been next to impossible to figure out how to operate it, I suspect.

Sack LCX3 copying system for the graphic arts industry.

It is a programmable unit, and really handy actually, because you can build exposure programs into 99 channels, to be used for different materials. We already made basic programs for cyanotype, vandyke, gum, and polymer gravure. We’re going to try and fine-tune these with students in the coming weeks…

Although the computer technology dates back from 1980s, it helps a lot in building exposure programs for different materials.