This is a spool holder for the XYZ Da Vinci 1.0 and AIO. I designed it for the printers in my club because we had flashed it with a custom firmware and wanted to use a different brand of filament. This spool holder should fit most 3D printing filaments out there, but we only tested it with a 1kg spool of PLA from Hatchbox. Even if it fits well the Hatchbox spools, I decided to make it slightly longer to make sure that all spools will fit it. With this spool holder, you must hang it from one of the holes at the sides of the printer, it clamps very nicely and still allows for the carrying of the printer. I would recommend hanging the filament spool on the side of the printer that does not face the X motor or else the filament might get tangled around it while travelling.