3kg Spool Holder

After getting a couple of 3kg spools of PLA filament, I had to design a spool holder for use with my Bambu P1S and H2S 3D printers. Unlike most spool holders out there, this one includes a fitting for a PTFE tube. This prevents the printer from dragging the spool across the desk and up to the intake when the filament on the spool is tangled, which will happen sooner or later. Such an event can also dislodge the spool and have it roll away and unwind in the room. But not so with this holder. Spool dimensions: 52mm axle diameter, up to 305mm (12") outer diameter, up to 104mm (4.1") width. Attached are the Fusion360 CAD model, STEP and 3MF files. Full write-up, and precautions for H2, in this post: https://raphtronic.blogspot.com/2025/05/diy-3kg-spool-holder-tangled-filament.html Happy mega prints to all ! CAD Model Print Designed to fit on a 250mm large plate, for the box's longest dimension. 240mm in height. Settings:PLA, 0.4mm nozzle, 0.24 layer height3 walls, 3 top, 3 bott