This is a spool adapter for Inland Brand Filaments that have a cardboard spool rather than the plastic spool. Why? This version was designed specifically to allow Inland Filament Spools to fit inside the Sovol 3D Filament Dryer (https://www.sovol3d.com/products/large-filament-dryer-box). The pictures show which dryer I designed them to fit, in case the link breaks. Note to the wise, while I show the spool adapter on a roll of PETG and that works fine, the filament dryer itself doesn't get over 50C to actually fully dry PETG as advertised lol. All the same, the Adapter also works for the Inland PLA Spools as they are the same size as well. Notes: The Spool Adapter will need to be printed twice as the spools have two sides. No Supports required. Better if printed in PETG or similar for the slight bit of flexing required during installation. Filament required when printed 100% solid with no brim or skirt: 21G each. Est Print Time of 1hr 46min with 0.2 layer height on "quality" Prusa Slicer settings.

Installation:

1. Just line up the adapter with your spool.
2. Press into place in the center of the spool, and then press the outer rim of the spool into the recess that grips it.
3. Do the same process to the other side of the spool.