Personal rolling scale concept

This is WIP.
Concept for a mechanical scale for measuring the mass of small items. Inspired by rolling postal scales. Can measure weight dynamically.
This was made primarily as a physics demonstration gadget, meant to be remixed and tinkered with. It is NOT precise and should not be used for situations that require a real scale. Basically, it's designed to be a toy. I am not accountable for it's misuse.

Hello there! Sorry but I need these warnings just in case. This is a goofy project I started a while ago with a group to see if we could make a working mechanical scale that was entirelly 3d printed. Well, we kinda failed in the entirely 3d printed aspect, but hey, it works! It's meant for education purposes or as a normal project, and is our first time designing something like this, and it was designed as part of a school project. Remixes are HIGHLY welcome and needed!

Materials I used:
-Anycubic standard resin in black
-Anycubic PhotonS
-Some cheap aluminum