2023-08-31 (Th) GrinderCompassMKII Fancy springs but no feedback

I could not find brass strips thinner than my current ones, but I found a narrow version. I tested their ability to oscillate in one direction by pressing one against a table and flicking at an angle, where it moved perpendicular to the table instead of diagonally. I soldered a chuck of brass to the end and bent it into a spring the same shape as before, but the metal was still too rigid.

I added more weight in the form of three brass nuts soldered in a line, but they were prone to lateral movement, which would cause problems. I hoped this design would let me connect threaded rods to ratchet the weight up slowly, but it failed.
Three brass nuts

I experimented with differently shaped hammers by soldering short segments of 1/8" (3mm) brass rods together. I needed more weight to get enough movement, and adjusting them was tricky because I had to bend the spring, which yielded imprecise results.
Two hammer designs

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