Here is Filament spool, This awesome design is a 2 part connectable filament spool, To assemble print each side then screw them together after sliding on your refill spool. Works with most filaments and printers Fit Bambu labs AMS system, Spool side 200mm, 200mm 65mm high, Inner circle 77mm, Connection hole 58m, Print settings, Nozzle size 0.4mm, Layer height 0.2mm, No supports needed, Print speed 100ms, Infill 15%, Wall count 3,