hanging spool holder

this spool holder can be mounted to the underside of a table or a ceiling. they can be mounted close to each other for better space efficiency due to the swinging arm.Creality Cloud won't let me remove old models. Arm v3 is beefier to hold a full kilogram spool - print with 30-50% infill and 1.2mm walls.Caps v3 have a thicker pin - adhesive is strongly recommended.