I’m trying to get familiar with the use of my Vandercook 3, and doing a lot of troubleshooting and question asking. I’ve made a couple of reduction prints on it so far (using lino blocks mounted to MDF and adjusted to type high with paper sheets as I look for a galley height bed plate) and the consistent issue that I have is a sort of stretching of the image as it prints. I get perfect registration perpendicular to cylinder, but the image seems to stretch and distort slightly as the cylinder rolls, so the near end of the image (right side of paper after removed) is perfectly registered and it gets progressively further out towards the other side (the left side of finished image). A colleague has suggested that this might have to do with the rubber sheet that is mounted under the tympan, which i intend to remove and replace with extra paper and continue to experiment, but I thought I’d throw it into the mix here and see if it’s instantly familiar as a problem to anyone.
Image Stretching Issue