2022-09-23 (F) Weekly Summary

I sketched the designs that were tumbling around in my head. I tried to draw them to scale with one another, and the one that stood out as the most plausible was shaped like a folding hand fan. I drafted it with accurate measurements, and it should be doable.
Sketches and a 1:1 plot for dimensions

I bought and cut the fabric, but it didn't go as high up as I planned in the drawing. The curved part of the sail, the leech, didn't need to be as large as I had planned. I sewed up the sides to contain the poles so I could add the hinge next.
Sewing for SkateSailV4

I added eyelets and paracord to the edge of the sail and a hinge to the rods. Testing went well, but I found it easier to hold the poles near the hinge as though I were holding a comically large fan. I'll have to test with better conditions later, but this is a complete project.
V4 in the wind

My sister asked me for a device to alert her to small changes in barometric pressure. We wanted something that would emit a chirp and indicate what happened with a colored LED. I assembled the hardware and got it running with Arduino V 2.0.0.
Arduino screenshot

I added lights and sound to the project. The RGB LED uses three outputs, but I have plenty to spare. The speaker isn't my final choice because I'll use a piezo element, but this had header pins, so it was easy for prototyping. I put everything in a sealed food container, and the pressure sensor triggered lights and beeps.
Pressure vessel

I designed an enclosure in CAD and cut it with my laser. I needed two revisions to make everything fit, which is attractive for burnt wood. The best feature was a layer with 34 holes for the pins on the Arduino, where it mounted neatly.
Wood enclosure

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

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