Filament spool holder - clip-on base extension

thingiverse

My printer frequently pulled so hard on the filament that the original spool holder tilted due to its small base size. To prevent this, I designed a base extension that clips onto the original base. Unfortunately, I probably underestimated the "hooks," which don't snap into place securely, but there's still enough friction for it to fit fairly well. Additionally, I included 15mm indentions on the bottom for rubber feet.