About this 3D model

Since sakata change spools to cardboard i have some troubles using it. The original Bambu Lab spool holder works well and i remixed it to make some changes to adapt it to use with sakata spools. The original locking mechanism is unchanged,and i add some reinforcement inner mechanism. To adapt it, i recommended follow mi pictures. take special care to filament. i use an 870 filament and I printed in 0.2mm layers without supports.