DIY Exposure Unit

Creating a DIY exposure unit is a cost-effective way for screen printers to get high-quality screen exposures without breaking the bank. Here's how to create and use your own DIY exposure unit.

Creating a DIY Exposure Unit:

1. Start by purchasing a large plastic storage container with a lid. This will be used as the base for your exposure unit. 
2. Cut a hole in the lid of the container and attach a UV light fixture inside. Using LED light will expose a better screen and last much longer than halogen light. 
3. Add a piece of clear glass or plexiglass to the top of the lid, making sure it fits securely.
4. Make sure the screens you use in your shop fit snugly inside the container.
5. Cover the glass with a piece of black fabric or a light-blocking material to prevent light leaks.

RELATED: WHY DIY SCREEN PRINTERS SHOULD USE AN LED BULB FOR SCREEN EXPOSURE

Using Your DIY Exposure Unit:

1. Coat your screen with emulsion, making sure it is evenly applied.
2. Place your artwork or film positive onto the emulsion-coated screen and secure it with a sheet of glass or plexiglass.
3. Place the screen inside the DIY exposure unit, with the emulsion side facing up.
4. Turn on the UV light and let it expose the screen for the required amount of time, according to the instructions for your specific emulsion.
5. Remove the screen from the exposure unit and wash it out with water to reveal your design.

RELATED: HOW TO CREATE A DARKROOM IN A CLOSET, GARAGE, OR SPARE BEDROOM

Using a DIY exposure unit can take some practice to get the exposure times and emulsion thicknesses right, but with a little trial and error, you can achieve great results. It's important to note that a DIY exposure unit may not be suitable for high-volume production, but it is an excellent option for those just starting out in screen printing or those looking to create prints at home.