Rubbermaid Tush

This remix of the Tush spool holder remix is to be able to use it inside a Rubbermaid 21 cup storage container. Due to the slight rounded bowl like bottom of the container, the original would cross pieces would not fit inside, and even when shortened it lacked room for common 1Kg 80mm wide spools.

The only real changes were to give the cross pieces a base with a rounded ends to raise the main supports above the curve of the bottom with a snug fit. This allows 80mm wide spools to fit.

Also, since the container has some molded hand grips towards the ends, the snug cross bars prevent the spool holder from sliding toward either end, keeping the spool from possibly rubbing.

These changes allow for this spool holder and container to be used as a printing dry box per the original instructions of @henryarnold [here](https://www.thingiverse.com/thing:1332650).

Thanks @Hilfusion for sharing the source code so I could remix it.