Great build C-Bag, Thanks for sharing! Nice design with bits and scraps and of course HFT returns. Particularly liked your roller set up and the ingenious way you connected the threader...looks substantial. Curious about the Giant O-Ring on the front of the drum where the bearings are...was that part of the top seal for the drum? It's magical sometimes how things fall into place like your balance...Always worth a "Thank You" !