Adjustable Scroll (just add paper)

Simple 4 part scroll.

My wife arranged a history lesson with her younger cousins via a minecraft adventure map and wanted to invite them to join it via a scroll sent in a box. Couldn't find any simple scrolls on thingiverse so I made one.

The model is designed to be a total of 180mm wide (to fit the wooden box she bought) with paper 120mm wide but the central shaft pieces are scalable. The tabs are an interference fit into the scroll ends, but they're 5mm long and the recess is 10mm. This means you can simply scale the STL file along it's x(?) axis anywhere between 50% and 195% and it should still fit together without issue.

I've included the freecad file (don't judge me, I'm not a cad designer by trade lol) feel free to modify and amend as you see fit.

There's a 2mm wide slot all through the shaft. the idea being you can glue/tape a lollypop (popsicle) stick to the end of your piece of paper and squeeze it neatly into the slot to reduce the chance of the paper falling ou