Just a point of interest, the slides were originally made of nylon (self lubricating). Several years ago someone had made replacement slides from Delrin ( self lubricating and last forever). I am not familiar with plastic printers, but the material that you make the slides from is very important. Don't want to damage the tracks and don't want to keep replacing the slides. I have the Delrin slides that I installed in 2010. The doors are still tight and rattle free.