Universal Auto-Rewinder for Rubbermaid Dry-box - Remix - split-locking axle upgrade - won't fall

This is a remake of the Universal Rewinder by https://www.thingiverse.com/VincentGroenhuis, https://www.thingiverse.com/thing:3338467 which was taken a step further by Blargedy https://www.thingiverse.com/thing:3867357 which gave me the inspiration to remake the axle due to the round end of the axle constantly falling out of the holder….  

This project features a 98mm split-locking axle which utilizes the slotted holders on both ends to suspend the spool in the Rubbermaid 21 Cup Dry Box.  This eliminates the possibility of one side of the axle from falling out of the rounded notch.  As such, the roundendaxleholder.stl is no longer necessary and is replaced with two SlottedEndAxleHolders. 

I recommend printing the SpringFlat modular project in PET and the rest in PLA.