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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)))))
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