Import all my old half-finished stuff

.gitignore

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+*.stl
+*.gcode
+borrowed

boardholder/boardholder-uniform.scad

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+// Numbers you need to change to adapt to your cutting boards
+grooves = 3;
+board_thickness = 25.4/3 + 0.1; // add slack
+holder_width = 20;
+
+// Numbers that change the style
+total_height_factor = 1.5*.5;
+groove_height_proportion = 0.75;
+
+/*
+// Numbers you need to change to adapt to your cutting boards
+grooves = 3;
+board_thickness = 25.4/3 + 0.1 + 0.04; // add slack + observed error
+holder_width = 140;
+
+// Numbers that change the style
+total_height_factor = 1.5;
+groove_height_proportion = 0.75;
+*/
+// End of configuration
+
+eps = 0.1; // epsilon (any small number)
+
+scale([board_thickness,
+       holder_width,
+       board_thickness * total_height_factor]) {
+  difference() {
+    cube(size=[1 + 2*grooves, 1, 1]);
+    for (i = [0 : grooves-1]) {
+      translate([1 + 2*i, -eps, 1 - groove_height_proportion])
+        cube(size=[1, 1+2*eps, 1]);
+    }
+  }
+}

boardholder/boardholder.scad

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+// Numbers you need to change to adapt to your cutting boards
+widths = [8.57 + .15, 8.57 + .15, 8.57 + .23];
+offset = 7.5;
+period = 16;
+holder_width = 120;
+total_height = 25;
+
+// Numbers that change the style
+bottom_height_proportion = 0.2;
+
+// End of configuration
+
+eps = 0.1; // epsilon (any small number)
+
+scale([1, holder_width, total_height]) {
+  difference() {
+    cube(size=[offset + len(widths)*period, 1, 1]);
+    for (i = [0 : len(widths)-1]) {
+
+      translate([offset + i*period, -eps, bottom_height_proportion])
+        cube(size=[widths[i], 1+2*eps, 1]);
+    }
+  }
+}

calibrate/cube.scad

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+translate([0,0,0])
+cube([10,10,5]);

calibrate/notes.txt

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+When asked to extrude 50mm, it extrudes 50mm + 19mm!
+
+M99 X0.1 Y0.2
+
+Skal jeg virkelig ændre "extra shells on alternating solid layer" til
+0/1/infinity?
+
+Print:
+- Nespresso holders
+- windmill
+- børnesikring "mylock.scad"
+- http://www.thingiverse.com/thing:13022