Donor Spool Holder Frame for 2kg+ Spools

This is a remix/augmentation to the fine respooler designed by Miklos Keszely. This allows you to take filament from 2kg to 6kg large spools and put them on 1kg standard spools for use in a dryer box or whatever suits you. Print the frame and the longer Axle. Nut and washers are the same. I bulk order custom color PLA in large rolls for cost, but transfer them to 1kg Spools so I needed to design this. - Added a 4mm hole to the longer axle for strength or to glue in a 4mm carbon fiber rod.