Add bird house

sed-i · Sep 21, 2024 · dd12967 · dd12967
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diff --git a/docs/blog/simple-bird-house.md b/docs/blog/simple-bird-house.md
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+---
+title: "Simple bird house"
+date: 2024-09-21T00:00:00-00:00
+categories:
+- diy
+tags:
+- woodwork
+---
+
+This is a parametric design idea for a single-plank bird house.
+
+<!--more-->
+
+The dimensions are determined by two variables:
+- Width (W) of the front.
+- Length (L) of the bird house (perhaps some would call it depth).
+
+The roof is at 45 degrees, so the left wall height is 2W and the right wall height is 3W.
+
+This means that you need:
+- A plank of width W and length 5W+8L.
+- Make one cut at 45 degrees.
+- Make 8 cuts, producing 8 slabs of W x L.
+- A bunch of nails.
+
+In the diagram below,
+- W = 150 mm
+- L = 250 mm
+
+![Drawing of the simple bird house](simple-bird-house.png "Simple bird house")
+
+(Also in [svg](simple-bird-house.svg), [pdf](simple-bird-house.pdf).)
diff --git a/docs/blog/simple-bird-house.pdf b/docs/blog/simple-bird-house.pdf
diff --git a/docs/blog/simple-bird-house.png b/docs/blog/simple-bird-house.png