I have an old Ludlow PLS 150 Polymer stamp machine. It must be around 20-25 years old. I still use this to make rubber stamps and I'm having a problem with the exposure vacuum. I have a tube connected to the valve to blow air out to get rid of bubbles in the polymer. I hear the vacuum running but it sounds different and no air is blowing out. My husband was an expert on the Ludlow but unfortunely he past away last year. I am trying to keep the stamp business going by myself but when I run into a problem I don't always know what to do. Is anyone familiar with this old machine? Or know where I can still buy glass plates for it? Thanks!
