2023-08-30 (W) GrinderCompassMKII Elaborate but unsuccessful spring making

I tried the simple design I created yesterday, but the brass would not form cleanly around such a small shape, and I merely kinked a few strips into unusability. I tried to make a larger model that would thin two springs at once so it would have a larger diameter and put less bend into the brass. The problem with this design was that I could not fasten both ends. I tried making a hoop to hold the metal in shape and then tighten wooden discs above and below, but nothing held.
Second version

I went through a few iterations of building tools, redesigning, and bending metal, but I never made anything usable enough to put it into a drill for a trial. I will reconsider what kind of metal and weights I am using.
Unusable parts

GitHub files for GrinderCompass
The rest of the posts for this project have been arranged by date.
First time here?

Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Completed projects from year 9
Completed projects from year 10

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