MasterSpool Remix

- all credit for the idea goes to RichRap and his MasterSpool
https://www.thingiverse.com/thing:2769823
https://richrap.blogspot.de/2018/01/masterspool-proposed-standard-for-3d.html
- I really like the idea of saving shipping and prodution cost, and DasFilament is my main filament supplier
- Therefore I needed a masterspool to test the refills on my next filament order
- based my design on RichRaps MasterSpool dimensions and modeled my version from scratch in fusion360
- this remix was aimed to have a design more pleasing to my eyes ;D
- another goal was to save some filament, I designed the side wall thickness to 1,6 mm and tried to be as light as possible overall
- printed this using 160g of PETG filament (120g part1, 40g part 2)
- additionally, I wanted to try to use modeled and printed threads for the first time, they came out perfect for me
- I based this on RichRaps version V2, added some holes around the outer diameter and some radial holes on the base cylinder to get