Hat Stretcher (100% 3D-printable)

Hat stretcher that does not require a trip to the hardware store. Maximum length is about 24 cm (9.4"), minimum length is about 16.5 cm (6.5").

*Update 25 Jan 2022. Added two files: "HatStretcher_Nut_improved" has more space in the threads and bevels at the ends of the threads, and "HatStretcher_Body2FixedScrew_bevel" which has a bevel at the end of the threads. These changes should accomodate differences between 3D printers (i.e. threads being too tight).