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LICENSE
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GNU GENERAL PUBLIC LICENSE THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
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in any resulting litigation.

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# Introduction to dactyl-cave
TODO: write [great documentation](http://jacobian.org/writing/great-documentation/what-to-write/)

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(defproject dactyl-cave "0.1.0-SNAPSHOT"
:description "FIXME: write description"
:url "http://example.com/FIXME"
:license {:name "Eclipse Public License"
:url "http://www.eclipse.org/legal/epl-v10.html"}
:dependencies [[org.clojure/clojure "1.5.1"]
[unicode-math "0.2.0"]
[scad-clj "0.1.0"]])

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(ns dactyl-cave.alternathumb
(:use [scad-clj.scad])
(:use [scad-clj.model])
(:use [unicode-math.core])
(:require [dactyl-cave.key :as key])
(:require [dactyl-cave.cave :as cave]))
(defn- scoop [angle radius [x y :as direction] shape]
(->> shape
(translate [0 0 radius])))
(defn thumb-x+x-column [shape]
(let [α (/ π 12)
radius (/ (/ key/pillar-depth 2)
(Math/sin (/ α 2)))
spin-shape (->> shape
(translate [0 0 (+ (- key/full-height)
(- radius))]))]
(translate
[0 0 (+ radius key/full-height)]
(union
spin-shape
(->> spin-shape
(rotate (- α) [1 0 0]))))))
(defn thumb-2x-column [shape]
(let [α (/ π 12)
radius (/ (/ key/pillar-depth 2)
(Math/sin (/ α 2)))
spin-shape (->> shape
(translate [0 0 (+ (- key/full-height)
(- radius))]))]
(translate
[0 0 (+ radius key/full-height)]
(union
(->> spin-shape
(rotate (* α -1/2) [1 0 0]))))))
(defn thumb-2x-row [shape]
(let [α (/ π 12)
radius (/ (/ key/pillar-depth 2)
(Math/sin (/ α 2)))
spin-shape (->> shape
(translate [0 0 (+ (- key/full-height)
(- radius))]))]
(translate
[0 0 (+ radius key/full-height)]
(union
(->> spin-shape
(rotate (* α 1) [1 0 0]))))))
(defn spin-thumb [column shape]
(let [β (/ π 36)
radius (/ (/ (+ key/pillar-width 5) 2)
(Math/sin (/ β 2)))]
(->>
(translate
[0 0 (- (- radius key/full-height))]
(->> shape
(translate [0 0 (- radius key/full-height)])
(rotate (* column β) [0 1 0])))
(translate [key/pillar-width 0 0])
(rotate (/ π 12) [0 0 1])
#_(rotate (/ π -12) [0 1 0])
#_(rotate (/ π 6) [0 0 1])
(translate [-7 -47 35]))))
(defn thumb-layout [shape]
(union
(spin-thumb 2 (thumb-x+x-column shape))
(spin-thumb 1 (thumb-x+x-column shape))
(spin-thumb 0 (thumb-2x-column shape))
(spin-thumb 1/2 (thumb-2x-row shape))))
(defn support [shape]
(hull
shape
(extrude-linear {:height 10 :twist 0 :convexity 0}
(project (hull shape)))))
(defn thumb-support [shape]
(union
(support (union
(spin-thumb 2 (thumb-x+x-column shape))
(spin-thumb 1 (thumb-x+x-column shape))
(spin-thumb 0 (thumb-2x-column shape))))
(support (union
(spin-thumb 0 (thumb-2x-column shape))
(spin-thumb 1/2 (thumb-2x-row shape))))
))
(def bottom
(translate [0 0 -100]
(cube 2000 2000 200))
)
#_(def thumb-base
(difference
(hull
(thumb-layout (translate [0 0 (/ key/pillar-height -2)]
(scale [1 1 1/10] key/full-pillar)))
(extrude-linear {:height 10 :twist 0 :convexity 0}
(project (hull (thumb-layout key/full-pillar)))))
bottom
(thumb-layout key/keyswitch-full-hole)))
(def thumb-base
(union
(thumb-support (scale [1 1 1/10] key/full-pillar))
#_(->> (cube 150 150 50)
(translate [150 75 25])))
)
(defn move-to-corner [shape]
(translate [-265 -215 0] shape))
(def thumb-cluster
(difference
(translate [0 0 -20]
(difference
(union
(thumb-layout key/pillar)
thumb-base)
(thumb-layout key/keyswitch-full-hole)))
bottom))
(spit "alternathumb.scad"
(write-scad (scale [(/ 25.4 90) (/ 25.4 90) (/ 25.4 90)]
#_thumb-cluster
(union
(mirror [1 0 0] (move-to-corner thumb-cluster))
#_(->> (move-to-corner thumb-cluster)
(mirror [1 0 0]))
#_cave/base
#_cave/fingers
)
#_(mirror [1 0 0]
(difference
(move-to-corner thumb-cluster)
cave/base
))
)))

337
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(ns dactyl-cave.cave
(:use [scad-clj.scad])
(:use [scad-clj.model])
(:use [unicode-math.core])
(:use [dactyl-cave.key]))
(defn key-place [column row shape]
(let [α (/ π 12)
row-radius (+ (/ (/ pillar-depth 2)
(Math/sin (/ α 2)))
full-height)
row-placed-shape (->> shape
(translate [0 0 (- row-radius)])
(rotate (* α (- 2 row)) [1 0 0])
(translate [0 0 row-radius]))
β (/ π 36)
column-radius (+ (/ (/ (+ pillar-width 127/90) 2)
(Math/sin (/ β 2)))
full-height)
column-offset (condp = column
2 [0 127/45 -254/45]
4 [0 (/ pillar-depth -3) 254/45]
5 [0 (/ pillar-depth -4) 254/45]
[0 0 0])
column-angle (if (<= column 4)
(* β (- 2 column))
(* β -3.25))
placed-shape (->> row-placed-shape
(translate [0 0 (- column-radius)])
(rotate column-angle [0 1 0])
(translate [0 0 column-radius])
(translate column-offset))]
(translate [0 0 127/18]
(rotate (/ π 12) [0 1 0]
placed-shape))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Limits
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(def bottom-limit
(->> (cube (* pillar-width 17.75)
(* pillar-depth 17)
508/9)
(translate [(+ (/ pillar-width 2) 127/45)
0 -254/9])))
(def back-limit
(->> (cube (* pillar-width 9)
(* pillar-depth 2)
254/3)
(translate [pillar-width
(+ (* pillar-depth 4.1))
254/9])))
(def front-right-limit
(->> (cube (* pillar-width 2)
(* pillar-depth 2)
254/3)
(translate [(+ (* pillar-width 4.125))
(+ (* pillar-depth -3.25))])))
(def front-left-limit
(->> (cube (* pillar-width 2.5)
(* pillar-depth 2)
254/3)
(translate [(+ (* pillar-width -3))
(+ (* pillar-depth -3))
254/9])))
(def front-limit
(->> (cube (* pillar-width 9)
(* pillar-depth 2)
254/3)
(translate [(* pillar-width 1/2) (+ (* pillar-depth -4.25)) 254/9])))
(* (/ 25.4 90) pillar-depth (- 3.1 -3.2))
(def left-limit
(->> (cube (* pillar-width 1)
(* pillar-depth 8)
254/3)
(translate [(+ (* pillar-depth -3.25)) 0 254/9])))
(def right-limit
(->> (cube (* pillar-width )
(* pillar-depth 8)
1016/9)
(translate [(+ (* pillar-depth 5.5)) 0 254/9])) )
(* (/ 25.4 90) (- (- (* pillar-depth 5.4) (* pillar-width 1/2))
(+ (* pillar-depth -3.25) (* pillar-width 1/2))
))
(def limits
(union
#_front-right-limit
front-left-limit
front-limit
left-limit
right-limit
bottom-limit
back-limit))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Base
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(def main-sphere
(let [radius (/ (/ pillar-depth 2)
(Math/sin (/ (/ π 36) 2)))]
(->> (sphere radius)
(translate [(* pillar-width 2.5) 0 (+ radius 127/90)]))) )
(def base-cube
(->> (cube (* pillar-width 7.75)
(* pillar-depth 7)
508/9)
(translate [(+ (/ pillar-width 2) 2921/450)
0 254/9])))
(def base
(difference
base-cube
main-sphere
limits))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Walls
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
#_(def wall-sphere
(let [radius (/ (/ pillar-depth 2)
(Math/sin (/ (/ π 36) 2)))]
(->> (sphere radius)
(scale [1 2/3 1])
(translate [(* pillar-width 2.5) 0 (+ radius 5 (* pillar-depth ))]))))
(def wall-sphere
(let [radius (/ (/ pillar-depth 2)
(Math/sin (/ (/ π 36) 2)))]
(->> (sphere radius)
(scale [1 2/3 1])
(translate [0 0 radius])
(translate [0 0 127/18])
(rotate (/ π 12) [0 1 0])
(translate [0 0 (* pillar-depth 3/4)]))))
(def wall-thickness 127/30)
(def back-wall
(difference
(translate [0 (- wall-thickness) 0] back-limit)
back-limit
right-limit
left-limit
bottom-limit
wall-sphere))
(def walls
(difference
(union
(translate [0 (- wall-thickness) 0] back-limit)
(translate [(- wall-thickness) 0 0] right-limit)
(translate [0 wall-thickness 0] front-limit)
(translate [wall-thickness 0 0] left-limit)
)
wall-sphere
limits))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Wire holes
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(def teensy-center [(* -1.6 pillar-width)
(* 2.8 pillar-depth)
254/45])
(def teensy-tray-slot
(->> (cube (* 1.125 pillar-width)
40
508/45)
(translate teensy-center)))
(def hole-destination
(->> (cube 5.7 5.7 5.7)
(translate [(first teensy-center)
(second teensy-center)
2.8 #_3.1])))
(defn bottom-cube [column row]
(->> (cube 6 6 6)
(key-place column row)
(project)
(extrude-linear {:height 5.7 :twist 0 :convexity 0})
(translate [0 0 2.8])))
(defn wire-hole [column row]
(union
(hull
(key-place column row (cube 6 6 keyswitch-height))
(bottom-cube column row))
(hull
hole-destination
(bottom-cube column row))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Full Model
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(def fingers
(let [all-key-coords (for [column (range 0 6)
row (range 0 5)
;; Removing bottom left key
:when (or (not= column 0)
(not= row 4))]
[column row])
middle-key-coords (for [column (range 0 6)
row (range 1 4)
;; Removing bottom left key
:when (or (not= column 0)
(not= row 4))]
[column row])
top-key-coords (for [column (range 0 6)]
[column 0])
bottom-key-coords (conj (for [column (range 1 6)]
[column 4])
[0 3])
]
(difference
(union base
#_walls
(apply union
(map #(key-place (first %) (second %)
(->> (cube pillar-width pillar-depth
(* 3 pillar-height))
(translate [0 0 (/ pillar-height -2)])))
all-key-coords)))
(apply union
(concat
(map #(key-place (first %) (second %) keyswitch-full-hole)
middle-key-coords)
(map #(key-place (first %) (second %) keyswitch-bottom-hole)
top-key-coords)
(map #(key-place (first %) (second %) (mirror [0 -1 0] keyswitch-bottom-hole))
bottom-key-coords)
))
limits
teensy-tray-slot)))
(def wire-network
(union
(wire-hole 0 0)
(wire-hole 1 0)
(wire-hole 2 0)
(wire-hole 3 0)
(wire-hole 4 0)
(wire-hole 5 0)
(wire-hole 0 1)
(wire-hole 0 2)
(wire-hole 0 3)
(wire-hole 0 4)
(wire-hole 1 4)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Actual Output
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
#_(spit "key.scad"
(write-scad (difference
pillar
)))
(spit "key.scad"
(write-scad (difference
(union
#_walls
#_wall-sphere
#_fingers
(difference fingers wire-network)
#_(mirror [-1 0 0]
(difference fingers wire-network))
)
#_(cube 400 800 800)
)))
#_(spit "key.scad"
(write-scad (scale [(/ 25.4 90) (/ 25.4 90) (/ 25.4 90)]
(difference
(union
#_walls
#_wall-sphere
#_fingers
(difference fingers wire-network)
#_(mirror [-1 0 0]
(difference fingers wire-network))
)
#_(cube 400 800 800)
))))
#_(spit "key.scad"
(write-scad (scale [(/ 25.4 90) (/ 25.4 90) (/ 25.4 90)]
(difference
fingers
wire-hole-1
wire-hole-2))))
#_(spit "key.scad"
(write-scad (scale [(/ 25.4 90) (/ 25.4 90) (/ 25.4 90)]
(differe
#_wall
#_base
#_rim
#_(mirror [1 0 0] fingers)
fingers
wire-hole-1))))
#_(spit "key.scad"
(write-scad (scale [(/ 25.4 90) (/ 25.4 90) (/ 25.4 90)]
(union
fingers
(->> fingers
project
(extrude-linear {:height 1 :twist 0 :convexity 0})
(scale [1.5 1.15 1])
)
)
)))

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src/dactyl_cave/core.clj 100644
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(ns dactyl-cave.core)
(defn foo
"I don't do a whole lot."
[x]
(println x "Hello, World!"))

81
src/dactyl_cave/key.clj 100644
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(ns dactyl-cave.key
(:use [scad-clj.scad])
(:use [scad-clj.model])
(:use [unicode-math.core]))
(def tw 13.969999999999999) ;; Top width
(def smh 0.98044) ;; Side margin height
(def pw 0.8128) ;; Peg width
(def ph 3.5001199999999995) ;; Peg height
(def pgh 5.00888) ;; Peg gap height
(def keyswitch-height (+ smh ph pgh ph smh))
(def keyswitch-width (+ pw tw pw))
(def plate-height 254/45)
(defn- flip-path [points] (map (partial map -) points))
(def keyswitch-plate-hole-shape
(polygon [[0.8128 0] [0.8128 0.98044] [0.0 0.98044] [0.0 4.48056] [0.8128 4.48056] [0.8128 9.48944] [0.0 9.48944] [0.0 12.98956] [0.8128 12.98956] [0.8128 13.969999999999999] [14.7828 13.969999999999999] [14.7828 12.98956] [15.5956 12.98956] [15.5956 9.48944] [14.7828 9.48944] [14.7828 4.48056] [15.5956 4.48056] [15.5956 0.98044] [14.7828 0.98044] [14.7828 0]]))
(def keyswitch-plate-hole
(->> keyswitch-plate-hole-shape
(extrude-linear {:height plate-height :twist 0 :convexity 0})
(translate (map #(/ (- %) 2) [keyswitch-width keyswitch-height 0]))
(translate [0 0 1])))
(def hole-height 127/18)
(def pillar-width (+ keyswitch-width 127/45))
(def pillar-height (+ hole-height (/ plate-height 2)))
(def pillar-depth (+ keyswitch-height 127/30))
(def keyswitch-full-hole
(->>
(union
keyswitch-plate-hole
(->> (cube (/ ph 2) pillar-depth (* plate-height 2))
(translate [(* tw -1/4) 0 0]))
(->> (cube (/ ph 2) pillar-depth (* plate-height 2))
(translate [(* tw 1/4) 0 0]))
(translate
[0 0 (/ hole-height -2)]
(cube keyswitch-width
keyswitch-height
hole-height)))
(translate [0 0 hole-height])))
(def keyswitch-bottom-hole
(->>
(union
keyswitch-plate-hole
(->> (cube (/ ph 2) (/ pillar-depth 2) (* plate-height 2))
(translate [(* tw -1/4) (/ pillar-depth -2) 0]))
(->> (cube (/ ph 2) (/ pillar-depth 2) (* plate-height 2))
(translate [(* tw 1/4) (/ pillar-depth -2) 0]))
(translate
[0 0 (/ hole-height -2)]
(cube keyswitch-width
keyswitch-height
hole-height)))
(translate [0 0 hole-height])))
(def full-pillar
(->> (cube pillar-width pillar-depth
pillar-height)
(translate [0 0 (/ pillar-height 2)])))
(def pillar
(difference
full-pillar
keyswitch-full-hole))
(def key-height 127/10)
(def pillar-with-fake-key
(union pillar
(->> (cube (+ -0 pillar-width) (+ -0 pillar-depth) key-height)
(translate [0 0 (+ (/ key-height 2) pillar-height 127/450)]))))
(def full-height (+ pillar-height key-height 127/450))

134
src/dactyl_cave/text.clj 100644
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(ns dactyl-cave.text
(:use [scad-clj.scad])
(:use [scad-clj.model])
(:import (java.awt Font RenderingHints)
(java.awt.font FontRenderContext)
(java.awt.geom PathIterator)))
(def segment-type
{PathIterator/SEG_CLOSE :close
PathIterator/SEG_CUBICTO :cubic-to
PathIterator/SEG_LINETO :line-to
PathIterator/SEG_MOVETO :move-to
PathIterator/SEG_QUADTO :quad-to})
;; How many points are specified for each segment type
(def segment-length
{PathIterator/SEG_CLOSE 0
PathIterator/SEG_CUBICTO 3
PathIterator/SEG_LINETO 1
PathIterator/SEG_MOVETO 1
PathIterator/SEG_QUADTO 2})
(defn path-iterator->segments
"Converts a PathIterator into a sequence of segments of the form [segment-type [& points]]"
[^PathIterator path-iterator]
(if (not (.isDone path-iterator))
(let [coords (double-array (* 2 (apply max (vals segment-length))))
segment-code (.currentSegment path-iterator coords)]
(cons [(segment-type segment-code)
(take (segment-length segment-code) (partition 2 coords))]
(lazy-seq (path-iterator->segments (doto path-iterator (.next))))))))
(defn quad->fn
"Returns the parametric control equation f(t), 0 <= t <= 1
for the quadratic interpolation of 3 points."
[cp p1 p2]
(fn [t]
(letfn [(interp [a b c] (+ (* (Math/pow (- 1 t) 2) a)
(* 2 t (- 1 t) b)
(* (Math/pow t 2) c)))]
[(apply interp (map first [cp p1 p2]))
(apply interp (map second [cp p1 p2]))])))
(defn cubic->fn
"Returns the parametric control equation f(t), 0 <= t <= 1
for the cubic interpolation of 4 points."
[cp p1 p2 p3]
(fn [t]
(letfn [(interp [a b c d]
(+ (* (Math/pow (- 1 t) 3) a)
(* 3 t (Math/pow (- 1 t) 2) b)
(* 3 (Math/pow t 2) (- 1 t) c)
(* (Math/pow t 3) d)))]
[(apply interp (map first [cp p1 p2 p3]))
(apply interp (map second [cp p1 p2 p3]))])))
(defn segments->lines
"Takes a sequence of segments of the form [segment-type [& points]]
and transforms each segment into a sequence of interpolated points"
[segments]
(reductions (fn [prev-line-points [segment-type control-points]]
#_(println segment-type)
(condp = segment-type
:move-to control-points
:line-to control-points
:quad-to (map (apply quad->fn
(last prev-line-points)
control-points)
(range 1/10 11/10 1/10))
:cubic-to (map (apply cubic->fn
(last prev-line-points)
control-points)
(range 1/10 11/10 1/10))))
(last (rest (first segments)))
(rest segments)))
(defn path2d [points]
(let [path (doto (java.awt.geom.Path2D$Double.)
(.moveTo (-> points first first)
(-> points first second)))]
(doseq [point (rest points)]
(.lineTo path (first point) (second point)))
path))
(defn split-intersecting [paths]
(let [polygons (map path2d paths)
starting-points (map first paths)]
(reduce (fn [acc path]
(let [polygon (path2d path)]
(if (some #(.contains % (-> path first first) (-> path first second))
(:polygons acc))
(merge-with concat acc
{:difference [path]})
(merge-with concat acc
{:polygons [polygon]
:union [path]}))))
{:polygons []
:union []
:difference []}
paths)))
(defn text-polygon [font size text]
(let [frc (FontRenderContext. nil
RenderingHints/VALUE_TEXT_ANTIALIAS_DEFAULT
RenderingHints/VALUE_FRACTIONALMETRICS_DEFAULT)
path-iter (-> (Font. font Font/PLAIN size)
(.createGlyphVector frc text)
(.getOutline)
(.getPathIterator nil))
paths (->> (path-iterator->segments path-iter)
(partition-by #(= (first %) :close))
(take-nth 2)
(map segments->lines)
(map flatten)
(map (partial partition 2)))
split-paths (split-intersecting paths)]
(difference
(apply union (map polygon (:union split-paths)))
(apply union (map polygon (:difference split-paths))))))
(spit "/Users/madereth/text.scad"
(write-scad
(->> "Anonymous Pro" #_(str (java.util.Date.))
(text-polygon "Anonymous Pro" 12)
(extrude-linear {:height 50 :twist 0 :convexity 0}))))
(spit "/Users/madereth/text.scad"
(write-scad
(->> "Anonymous Pro" #_(str (java.util.Date.))
(text-polygon "Anonymous Pro" 12)
(extrude-linear {:height 12 :twist 0 :convexity 0}))))

173
src/dactyl_cave/thumb.clj 100644
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(ns dactyl-cave.thumb
(:use [scad-clj.scad])
(:use [scad-clj.model])
(:use [unicode-math.core])
(:require [dactyl-cave.key :as key])
(:require [dactyl-cave.cave :as cave]))
(defn thumb-place [column row shape]
(let [α (/ π 12)
row-radius (+ (/ (/ key/pillar-depth 2)
(Math/sin (/ α 2)))
key/full-height)
β (/ π 36)
column-radius (+ (/ (/ (+ key/pillar-width 5) 2)
(Math/sin (/ β 2)))
key/full-height)]
(->> shape
(translate [0 0 (- row-radius)])
(rotate (* α row) [1 0 0])
(translate [0 0 row-radius])
(translate [0 0 (- column-radius)])
(rotate (* column β) [0 1 0])
(translate [0 0 column-radius])
(translate [key/pillar-width 0 0])
(rotate (/ π 12) [0 1 0])
(rotate (* π (- 1/4 1/16)) [0 0 1])
(rotate (/ π 12) [1 1 0])
(translate [254/45 127/15 1778/45]))))
(defn thumb-2x-column [shape]
(thumb-place 0 -1/2 shape))
(defn thumb-2x+1-column [shape]
(union (thumb-place 1 -1/2 shape)
(thumb-place 1 1 shape)))
(defn thumb-1x-column [shape]
(union (thumb-place 2 -1 shape)
(thumb-place 2 0 shape)
(thumb-place 2 1 shape)))
(defn thumb-layout [shape]
(union
(thumb-2x-column shape)
(thumb-2x+1-column shape)
(thumb-1x-column shape)))
(defn support [shape]
(hull
shape
(extrude-linear {:height 127/45 :twist 0 :convexity 0}
(project (hull shape)))))
(defn thumb-support [shape]
(let [column-supports
(union
(support (thumb-2x-column shape))
(support (thumb-2x+1-column shape))
(support (thumb-1x-column shape)))]
(union column-supports
(support column-supports))))
(fn [])
(def bottom
(translate [0 0 -254/9] (cube 5080/9 5080/9 508/9)))
(def thumb-base
(thumb-support (scale [1 1 1/10] key/full-pillar)))
#_(defn move-to-corner [shape]
(translate [-6731/90 -5461/90 0] shape))
(defn move-to-corner [shape]
(translate [(+ -6731/90 10) (- -5461/90 10) 0] shape))
(/ -6731 90.0) -74.78888888888889
(double -5461/90) -60.67777777777778
(def thumb-cluster
(difference
(translate [0 0 -254/45]
(difference
(union
(thumb-layout key/pillar)
thumb-base)
(thumb-layout key/keyswitch-full-hole)))
bottom))
(def connection-stems
(difference
(hull (union
(->> (cylinder 127/90 508/9)
(translate [-0 -2413/45 0]))
(->> (cylinder 127/90 508/9)
(translate [-127/3 -0 0]))
(->> (cylinder 127/90 508/9)
(translate [-2159/30 -127/5 0]))
(->> (cylinder 127/90 508/9)
(translate [-508/9 -381/5 0]))))
bottom
cave/main-sphere
(translate [0 0 -254/45]
(thumb-layout key/keyswitch-full-hole))))
(def wire-network
(apply union
(for [[column row] [[0 -1/2]
[1 -1/2]
[1 1]
[2 -1]
[2 0]
[2 1]]]
(let [middle-hole (->> (thumb-place column row (cube 6 6 6))
(translate [0 0 -127/9])
move-to-corner)]
#_(thumb-place column row (sphere 127/9))
(union (hull (->> (cube 254/45 254/45 key/keyswitch-height)
(thumb-place column row)
move-to-corner)
middle-hole)
(hull middle-hole (cave/bottom-cube 0 4))
(hull (cave/bottom-cube 0 4) cave/hole-destination))))))
(spit "thumb.scad"
(write-scad (difference
(union
(move-to-corner thumb-cluster)
connection-stems
#_cave/base
#_cave/fingers)
cave/base
wire-network)))
#_(spit "thumb.scad"
(write-scad (scale [(/ 25.4 90) (/ 25.4 90) (/ 25.4 90)]
(mirror [-1 0 0]
(difference
(union
(move-to-corner thumb-cluster)
connection-stems
#_cave/base
#_cave/fingers)
cave/base
wire-network)))))
#_(spit "thumb.scad"
(write-scad (scale [(/ 25.4 90) (/ 25.4 90) (/ 25.4 90)]
(mirror [-1 0 0]
(difference
(union
(move-to-corner thumb-cluster)
connection-stems
#_cave/base
#_cave/fingers)
cave/base
wire-network)))))
(spit "one-piece.scad"
(write-scad
(mirror [-1 0 0]
(union (difference cave/fingers cave/wire-network)
(difference
(union
(move-to-corner thumb-cluster)
connection-stems)
cave/base
wire-network)))))

11
src/scad_demo/core.clj 100644
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(ns scad-demo.core
(:use [scad-clj.scad])
(:use [scad-clj.model]))
(def primitives
(union
(union)
(->> (sphere 50))))
(spit "post-demo.scad"
(write-scad primitives))

6
target/classes/META-INF/maven/dactyl-cave/dactyl-cave/pom.properties 100644
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@ -0,0 +1,6 @@
#Leiningen
#Wed Mar 04 17:30:05 PST 2015
version=0.1.0-SNAPSHOT
revision=9e72dea9b02c89fb782537b8e1af7cda4f11c995\n
groupId=dactyl-cave
artifactId=dactyl-cave

1
target/repl-port 100644
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@ -0,0 +1 @@
52476

1
target/stale/extract-native.dependencies 100644
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@ -0,0 +1 @@
([:dependencies ([cider/cider-nrepl "0.8.0"] [org.clojure/clojure "1.5.1"] [unicode-math/unicode-math "0.2.0"] [scad-clj/scad-clj "0.1.0"] [org.clojure/tools.nrepl "0.2.6" :exclusions ([org.clojure/clojure]) :scope "test"] [clojure-complete/clojure-complete "0.2.3" :exclusions ([org.clojure/clojure]) :scope "test"])])

7
test/dactyl_cave/core_test.clj 100644
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(ns dactyl-cave.core-test
(:require [clojure.test :refer :all]
[dactyl-cave.core :refer :all]))
(deftest a-test
(testing "FIXME, I fail."
(is (= 0 1))))