2024-09-13 (F) Weekly Summary

I had black resin in the printer, so the new parts for REV32 were of a different color. The shell and axle holder came out nicely, but the cap with the thin stem was sloppy, and I could not get it to fit inside the tube. I discovered that applying pressure to the elastics held the internals more securely.

REV32 taught me a lot

I made the cap stem and elastic holders into hexagons. The elastic holders will be easier to turn and are even wrench-compatible. The cap has a hex stem so I can smooth the sides by loading it into a bit driver and spinning it across some sandpaper.

Hex is a theme this time

I 3D printed the plug but had trouble with the 1/4" hex drive being too large for a bit driver. I ended up using an electric drill instead. I held the plug against a razor knife while spinning it to smooth out the edges. I didn't have sandpaper, so I put it into the case and spun it to eliminate the rough edges. I installed the axle holder and elastics from the top, then added the cap. The tension between the plug and case was enough to hold it in position after assembly. I plan to move the feedback mechanism closer to the spinner in the next revision.

Assembled from the top for the first time

I adjusted the feedback mechanism so that it now reaches far enough into the device to contact the spinner. Additionally, I reduced the hex drive by 5% to ensure it fits into a bit driver.

Increasing how much the feedback mechanism sticks inside the case

I tested the four models, and the one with a one-millimeter offset was the greatest change I could still insert in the axle holder. I noticed that moving the feedback bolt down would make more sense because the device moves more than above.

I got another one working!

I made several adjustments to the unit. I moved the feedback bolt hole down, extended the cap's hex drive, created smaller cap diameters, expanded the bolt holes, and flattened the front and back of the axle holder.

Square axle holder, long hex cap, and case with low feedback bolt hole

The rest of the summary posts 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
Completed projects from year 11

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