Spool Stacking Adapters

thingiverse

Print the larger side down naturally. If both sides are identical or if the bigger side is positioned at the bottom but would drop through, activate the center lip feature. This option comes in handy for Delta printers with top-mounted bearings that can hold a large spool, yet don't fit smaller ones. Use a big spool to sit on the bearings and place a small one on top of it with this adapter. At times, the adapter rotates more smoothly than the bearings themselves!