Rotating filament sample holders v1

The holder is prepared for samples from this project.I was missing a holder that would be both convenient and useful. Until now, the ones that held samples horizontally took up too much space to fit comfortably into my system. At the same time, the ones that are made vertically don't fit everywhere.That's why I decided to prepare my own design with a rotating head that holds the sample. I'm still learning how to design, so if you have any comments on my design, please share them in the comments section and I will be happy to improve my models. The design fits shafts with a diameter of approximately 16mm to 18mm (I tested it on such shafts). I use wooden shafts that do not have perfect dimensions, so I needed a holder that would be reasonably universal in terms of width.I designed the supports so that they can be removed as quickly as possible, at the slight expense of quality.