Polymer Platemaking in the type lab or room 6451

Two plates from the same 4x6 inch negative.Dennis Michael Peterson drew a large arrow on frosted mylar. As an experiment, we thought it would be fun to take a digital photo of the drawing and scale it down to print it on our letterpress printing press. His original graphite drawing is about 2 x 3 feet. In Adobe Photoshop we converted the image to a greyscale, set the image size to 8.5 x 11 inches and set the resolution to 300 ppi. The kind folks at Smartset in Minneapolis, MN made the negative for us and quickly mailed it to us. These plates are actually smaller samples that we had made for printing on a post card. Once the larger version is done, we will add more images to this post.

Below is a sample of the original image.
Original drawing by Dennis Michael Peterson