Perhaps I am working on one of the slowest FT-5 builds to date. I ordered the kit while I was recovering from major surgery and could only look at the box. I was finally released to return to work and I then tarted the build. Soon after, we decided to move and some of the parts are missing (probably lost during the move). I have missed something about the gantry build. The two pieces of melamine used to hold the idler pulleys in place hold one end of each rail but what is supposed to hold the opposite end of the rails in place? I've considered cutting a couple of pieces of wood into the same shape as the melamine pieces and drilling holes for the bolts and t-nuts. Surely there is a better solution, but I would like to complete this build sometime in the near future.