This will fit the Anycubic Kobra 2 Pro/Plus/Max.
I suggest organic supports on the spindle with the small end on the base. large brim to keep from coming loose while printing. Also, a modified lock nut, to lock the inner nut in place. It has a tendency to tighten up if not locked.
The author remixed this model.
Made the spindle much longer and modified the nut with a large brim to allow for larger spool holes and centering of the spool. Also includes a locknut. Depending on how place your spool, the friction will cause the centering piece to tighten up on the spool. The locknut prevents this.