Author Archives: mkellner

Up she goes

A bit out of order, but here’s the delivery of the building pieces.

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Dot matrix grid (Thing 210015)

eBay has these chainable 8×8 led matrix (MAX7219) for fairly cheap. I put together a sequence of 4, as that is all that would fit on my 3.5″ x 6″ protoboard. I connected an Extracore (mini-arduino), power regulator, thermistor and clock … Continue reading

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Before

This was the starting point.

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Bathroom panel

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More plumbing

You can see the in-wall toilet tank here (TOTO). The small valve to the right of the red tank frame is a slow drip to the in-floor trap. This keeps the trap filled even when the floor drain isn’t often … Continue reading

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Raising the flagpole

Finally… I’ve been waiting a long time to raise the flagpole and today is the day.

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Filling the walls

I’m the son of a farmer and although trained in engineering principles, I usually like to over-engineer things for additional strength. Here we’re filling the walls with concrete to unite the bricks and reinforcing steel into a single structure.

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Top courses

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First courses

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Flagpole mount

The socket in the ground for the flagpole has a centering cone for the pole itself and is intended to be filled with sand around the pole to absorb some shock and movement. The socket is surrounded by concrete at … Continue reading

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