spool winder

I have made modifications based on the original model, and all the changes have been written down.The model structure is very simple, and assembly can refer to the original model.Assembly requires 17 M3 * 12 screws and 13 608 bearings.There are a total of 12 modifications.Please use PETG material. If it is PLA material, we cannot guarantee long-term high-speed use.<figu