SummaryThis is a very simple spool holder for Prusa i3 kit from Aliexpress. You really need to print only the two parts that hold the spool. A beam and the guiding loop are optional. I was not satisfied how Cura sliced this model. I would recommend using different slicer for this model. In my case first layer was a disaster and it was due to instructions generated by software (for some reason it came out really wonky). No glue required - it all snaps right in. Then take out the metal rod that was provided with a kit and screw it in. Enjoy!Print SettingsPrinter Brand: RepRapPrinter: i3 PrusaRafts: NoSupports: NoInfill: 20-25% is enoughNotes: Don't use Cura for slicing. You may need to rotate some parts to fit them on printing bed.