Crank-Driven Desktop Scratch Paper System

I made this fully 3D-printed “perpetual scratch paper system” to give myself a continuous surface for sketching, scribbling, and jotting notes right on my desktop.
It mounts under the desk and feeds 24" kraft paper up and over the work surface. When I need a fresh canvas, I just turn the crank—new paper scrolls into place, and the used section wraps neatly onto the take-up roll below. You can also reverse it if you want to revisit old notes or drawings.

Link to GIF's of it in action: https://imgur.com/a/crank-driven-desktop-scratch-paper-system-OUnfc77

Details:
Under-desk mounted with recessed screws
Dovetail joints make the frame easy to remove and change out paper
Crank-operated take-up roll winds used paper below the desk
Bi-directional scroll lets you move the paper forwards and backwards
Designed for 24” kraft paper rolls on 1” diameter tubes

Printing:
Nozzle size: 0.4 mm
Layer height: 0.2mm
Supports: recommended

Parts List: (For full