A1 Mini - Handle and spool holder complement

I ordered an A1 mini with the intention to print very flexible filament. I've been advised to do a direct feed of filament with the minimal possible drag from the spool holder. Further, this printer will follow me while travelling, so I needed to have a proper handle. HandleI designed a handle which includes a fixation for the spool holder slot. There is 2 M3 nuts inserted during the print using a pause to make a reliable fixation. The slot support is slightly tilted so the spool holder is horizontal when loaded with a full spool. The slot can be fixed with M3x12 or longer screws. Spool HolderAs I also wanted to reduce the drag, I designed a complement for the spool holder allowing the use of ball bearings 6807RS (35x47x7). I also included printed bearings in the case you do not want to wait for the ball bearings (I ordered mine on Amazon, they are not yet delivered). They are fixed with two parts that are placed around the original spool holder, with a lock inserted in order to pr