Add a build script

build.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+PARTS=(
+	"slip_coupling"
+	"magnetic_coupling"
+	"mount_plate"
+)
+
+for part in "${PARTS[@]}"
+do
+   stl="./stl/takeup_${part}.stl"
+   openscad -o "${stl}" -D "PART=\"${part}\";" "./takeup.scad"
+done