I was using Pat's check maker to make 44 checks the other night and while punching discs the thing would bind up. I'm thinking a guy should clean it every 100-150 discs. What I think is happening is you get aluminum dust or fine shavings from the disc cutting step caught between the main die body and the inner body. Any one have this problem? I did try rotating every thing to find the sweet spot but now still binds.