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(ns dactyl-keyboard.dactyl
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(:refer-clojure :exclude [use import])
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(:require [clojure.core.matrix :refer [array matrix mmul]]
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[scad-clj.scad :refer :all]
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[scad-clj.model :refer :all]
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[unicode-math.core :refer :all]))
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;;;;;;;;;;;;;;;;;;;;;;
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;; Shape parameters ;;
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;;;;;;;;;;;;;;;;;;;;;;
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(def nrows 4)
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(def ncols 5)
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(def α (/ π 12)) ; curvature of the columns
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(def β (/ π (if (= nrows 4) 26 36))) ; curvature of the rows
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(def centerrow (- nrows 3)) ; controls front-back tilt
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(def centercol 3) ; controls left-right tilt / tenting (higher number is more tenting)
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(def orthographic-x (> nrows 5)) ; for larger number of rows don't curve them in as much
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; (def orthographic-x true) ; controls curvature of rowS
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(defn column-offset [column] (cond
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(= column 2) [0 2.82 -4.5]
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(>= column 4) [0 -5.8 5.64]
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:else [0 0 0]))
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(def thumb-offsets [6 -3 7])
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(def keyboard-z-offset 24) ; controls height
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;;;;;;;;;;;;;;;;;;;;;;;
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;; General variables ;;
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;;;;;;;;;;;;;;;;;;;;;;;
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(def lastrow (dec nrows))
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(def cornerrow (dec lastrow))
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(def lastcol (dec ncols))
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;;;;;;;;;;;;;;;;;
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;; Switch Hole ;;
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;;;;;;;;;;;;;;;;;
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(def keyswitch-height 14.4) ;; Was 14.1, then 14.25
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(def keyswitch-width 14.4)
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(def sa-profile-key-height 12.7)
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(def plate-thickness 4)
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(def mount-width (+ keyswitch-width 3))
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(def mount-height (+ keyswitch-height 3))
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(def single-plate
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(let [top-wall (->> (cube (+ keyswitch-width 3) 1.5 plate-thickness)
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(translate [0
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(+ (/ 1.5 2) (/ keyswitch-height 2))
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(/ plate-thickness 2)]))
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left-wall (->> (cube 1.5 (+ keyswitch-height 3) plate-thickness)
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(translate [(+ (/ 1.5 2) (/ keyswitch-width 2))
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0
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(/ plate-thickness 2)]))
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side-nub (->> (binding [*fn* 30] (cylinder 1 2.75))
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(rotate (/ π 2) [1 0 0])
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(translate [(+ (/ keyswitch-width 2)) 0 1])
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(hull (->> (cube 1.5 2.75 plate-thickness)
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(translate [(+ (/ 1.5 2) (/ keyswitch-width 2))
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0
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(/ plate-thickness 2)]))))
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plate-half (union top-wall left-wall (with-fn 100 side-nub))]
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(union plate-half
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(->> plate-half
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(mirror [1 0 0])
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(mirror [0 1 0])))))
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;;;;;;;;;;;;;;;;
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;; SA Keycaps ;;
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;;;;;;;;;;;;;;;;
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(def sa-length 18.25)
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(def sa-double-length 37.5)
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(def sa-cap {1 (let [bl2 (/ 18.5 2)
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m (/ 17 2)
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key-cap (hull (->> (polygon [[bl2 bl2] [bl2 (- bl2)] [(- bl2) (- bl2)] [(- bl2) bl2]])
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(extrude-linear {:height 0.1 :twist 0 :convexity 0})
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(translate [0 0 0.05]))
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(->> (polygon [[m m] [m (- m)] [(- m) (- m)] [(- m) m]])
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(extrude-linear {:height 0.1 :twist 0 :convexity 0})
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(translate [0 0 6]))
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(->> (polygon [[6 6] [6 -6] [-6 -6] [-6 6]])
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(extrude-linear {:height 0.1 :twist 0 :convexity 0})
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(translate [0 0 12])))]
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(->> key-cap
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(translate [0 0 (+ 5 plate-thickness)])
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(color [220/255 163/255 163/255 1])))
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2 (let [bl2 (/ sa-double-length 2)
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bw2 (/ 18.25 2)
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key-cap (hull (->> (polygon [[bw2 bl2] [bw2 (- bl2)] [(- bw2) (- bl2)] [(- bw2) bl2]])
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(extrude-linear {:height 0.1 :twist 0 :convexity 0})
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(translate [0 0 0.05]))
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(->> (polygon [[6 16] [6 -16] [-6 -16] [-6 16]])
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(extrude-linear {:height 0.1 :twist 0 :convexity 0})
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(translate [0 0 12])))]
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(->> key-cap
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(translate [0 0 (+ 5 plate-thickness)])
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(color [127/255 159/255 127/255 1])))
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1.5 (let [bl2 (/ 18.25 2)
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bw2 (/ 28 2)
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key-cap (hull (->> (polygon [[bw2 bl2] [bw2 (- bl2)] [(- bw2) (- bl2)] [(- bw2) bl2]])
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(extrude-linear {:height 0.1 :twist 0 :convexity 0})
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(translate [0 0 0.05]))
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(->> (polygon [[11 6] [-11 6] [-11 -6] [11 -6]])
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(extrude-linear {:height 0.1 :twist 0 :convexity 0})
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(translate [0 0 12])))]
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(->> key-cap
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(translate [0 0 (+ 5 plate-thickness)])
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(color [240/255 223/255 175/255 1])))})
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;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Placement Functions ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;
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(def columns (range 0 ncols))
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(def rows (range 0 nrows))
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(def cap-top-height (+ plate-thickness sa-profile-key-height))
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(def row-radius (+ (/ (/ (+ mount-height 1/2) 2)
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(Math/sin (/ α 2)))
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cap-top-height))
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(def column-radius (+ (/ (/ (+ mount-width 2.0) 2)
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(Math/sin (/ β 2)))
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cap-top-height))
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(def column-x-delta (+ -1 (- (* column-radius (Math/sin β)))))
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(defn key-place [column row shape]
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(let [row-placed-shape (->> shape
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(translate [0 0 (- row-radius)])
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(rotate (* α (- centerrow row)) [1 0 0])
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(translate [0 0 row-radius]))
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column-angle (* β (- centercol column))
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placed-shape (->> row-placed-shape
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(translate [0 0 (- column-radius)])
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(rotate column-angle [0 1 0])
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(translate [0 0 column-radius])
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(translate (column-offset column)))
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column-z-delta (* column-radius (- 1 (Math/cos column-angle)))
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placed-shape-ortho (->> row-placed-shape
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(rotate column-angle [0 1 0])
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(translate [(- (* (- column centercol) column-x-delta)) 0 column-z-delta])
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(translate (column-offset column)))]
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(->> (if orthographic-x placed-shape-ortho placed-shape)
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(rotate (/ π 12) [0 1 0])
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(translate [0 0 keyboard-z-offset]))))
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(def key-holes
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(apply union
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(for [column columns
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row rows
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:when (or (.contains [2 3] column)
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(not= row lastrow))]
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(->> single-plate
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(key-place column row)))))
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(def caps
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(apply union
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(for [column columns
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row rows
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:when (or (.contains [2 3] column)
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(not= row lastrow))]
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(->> (sa-cap (if (= column 5) 1 1))
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(key-place column row)))))
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(defn rotate-around-x [angle position]
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(mmul
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[[1 0 0]
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[0 (Math/cos angle) (- (Math/sin angle))]
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[0 (Math/sin angle) (Math/cos angle)]]
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position))
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(defn rotate-around-y [angle position]
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(mmul
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[[(Math/cos angle) 0 (Math/sin angle)]
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[0 1 0]
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[(- (Math/sin angle)) 0 (Math/cos angle)]]
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position))
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(defn key-position [column row position]
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(let [row-position (->> position
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(map + [0 0 (- row-radius)])
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(rotate-around-x (* α (- centerrow row)))
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(map + [0 0 row-radius]))
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column-angle (* β (- centercol column))
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placed-position (->> row-position
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(map + [0 0 (- column-radius)])
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(rotate-around-y column-angle)
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(map + [0 0 column-radius])
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(map + (column-offset column)))
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column-z-delta (* column-radius (- 1 (Math/cos column-angle)))
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placed-position-ortho (->> row-position
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(rotate-around-y column-angle)
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(map + [(- (* (- column centercol) column-x-delta)) 0 column-z-delta])
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(map + (column-offset column)))]
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(->> (if orthographic-x placed-position-ortho placed-position)
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(rotate-around-y (/ π 12))
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(map + [0 0 24]))))
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; (pr (rotate-around-y π [10 0 1]))
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; (pr (key-position 1 cornerrow [(/ mount-width 2) (- (/ mount-height 2)) 0]))
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;;;;;;;;;;;;;;;;;;;;
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;; Web Connectors ;;
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;;;;;;;;;;;;;;;;;;;;
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(def web-thickness 3.5)
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(def post-size 0.1)
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(def web-post (->> (cube post-size post-size web-thickness)
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(translate [0 0 (+ (/ web-thickness -2)
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plate-thickness)])))
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(def post-adj (/ post-size 2))
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(def web-post-tr (translate [(- (/ mount-width 2) post-adj) (- (/ mount-height 2) post-adj) 0] web-post))
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(def web-post-tl (translate [(+ (/ mount-width -2) post-adj) (- (/ mount-height 2) post-adj) 0] web-post))
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(def web-post-bl (translate [(+ (/ mount-width -2) post-adj) (+ (/ mount-height -2) post-adj) 0] web-post))
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(def web-post-br (translate [(- (/ mount-width 2) post-adj) (+ (/ mount-height -2) post-adj) 0] web-post))
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(defn triangle-hulls [& shapes]
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(apply union
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(map (partial apply hull)
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(partition 3 1 shapes))))
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(def connectors
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(apply union
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(concat
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;; Row connections
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(for [column (range 0 (dec ncols))
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row (range 0 lastrow)]
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(triangle-hulls
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(key-place (inc column) row web-post-tl)
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(key-place column row web-post-tr)
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(key-place (inc column) row web-post-bl)
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(key-place column row web-post-br)))
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;; Column connections
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(for [column columns
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row (range 0 cornerrow)]
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(triangle-hulls
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(key-place column row web-post-bl)
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(key-place column row web-post-br)
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(key-place column (inc row) web-post-tl)
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(key-place column (inc row) web-post-tr)))
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;; Diagonal connections
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(for [column (range 0 (dec ncols))
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row (range 0 cornerrow)]
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(triangle-hulls
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(key-place column row web-post-br)
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(key-place column (inc row) web-post-tr)
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(key-place (inc column) row web-post-bl)
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(key-place (inc column) (inc row) web-post-tl))))))
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;;;;;;;;;;;;
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;; Thumbs ;;
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;;;;;;;;;;;;
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(def thumborigin
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(map + (key-position 1 cornerrow [(/ mount-width 2) (- (/ mount-height 2)) 0])
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thumb-offsets))
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; (pr thumborigin)
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(defn deg2rad [degrees]
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(* (/ degrees 180) pi))
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(defn thumb-tr-place [shape]
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(->> shape
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(rotate (deg2rad 10) [1 0 0])
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(rotate (deg2rad -23) [0 1 0])
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(rotate (deg2rad -3) [0 0 1])
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(translate thumborigin)
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(translate [-10 -16 0])
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))
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(defn thumb-tl-place [shape]
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(->> shape
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(rotate (deg2rad 10) [1 0 0])
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(rotate (deg2rad -23) [0 1 0])
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(rotate (deg2rad -3) [0 0 1])
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(translate thumborigin)
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(translate [-30 -15 -2])))
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(defn thumb-mr-place [shape]
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(->> shape
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(rotate (deg2rad -6) [1 0 0])
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(rotate (deg2rad -34) [0 1 0])
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(rotate (deg2rad 48) [0 0 1])
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(translate thumborigin)
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(translate [-29 -40 -13])
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))
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(defn thumb-ml-place [shape]
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(->> shape
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(rotate (deg2rad 6) [1 0 0])
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(rotate (deg2rad -34) [0 1 0])
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(rotate (deg2rad 40) [0 0 1])
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(translate thumborigin)
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(translate [-51 -25 -12])))
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(defn thumb-br-place [shape]
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(->> shape
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(rotate (deg2rad -16) [1 0 0])
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(rotate (deg2rad -33) [0 1 0])
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(rotate (deg2rad 54) [0 0 1])
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(translate thumborigin)
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(translate [-37.8 -55.3 -25.3])
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))
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(defn thumb-bl-place [shape]
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(->> shape
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(rotate (deg2rad -4) [1 0 0])
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(rotate (deg2rad -35) [0 1 0])
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(rotate (deg2rad 52) [0 0 1])
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(translate thumborigin)
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(translate [-56.3 -43.3 -23.5])
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))
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(defn thumb-1x-layout [shape]
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(union
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(thumb-mr-place shape)
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(thumb-ml-place shape)
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(thumb-br-place shape)
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(thumb-bl-place shape)))
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(defn thumb-15x-layout [shape]
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(union
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(thumb-tr-place shape)
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(thumb-tl-place shape)))
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(def larger-plate
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(let [plate-height (/ (- sa-double-length mount-height) 3)
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top-plate (->> (cube mount-width plate-height web-thickness)
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(translate [0 (/ (+ plate-height mount-height) 2)
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(- plate-thickness (/ web-thickness 2))]))
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]
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(union top-plate (mirror [0 1 0] top-plate))))
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(def thumbcaps
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(union
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(thumb-1x-layout (sa-cap 1))
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(thumb-15x-layout (rotate (/ π 2) [0 0 1] (sa-cap 1.5)))))
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(def thumb
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(union
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(thumb-1x-layout single-plate)
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(thumb-15x-layout single-plate)
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(thumb-15x-layout larger-plate)
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))
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(def thumb-post-tr (translate [(- (/ mount-width 2) post-adj) (- (/ mount-height 1.15) post-adj) 0] web-post))
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(def thumb-post-tl (translate [(+ (/ mount-width -2) post-adj) (- (/ mount-height 1.15) post-adj) 0] web-post))
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(def thumb-post-bl (translate [(+ (/ mount-width -2) post-adj) (+ (/ mount-height -1.15) post-adj) 0] web-post))
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(def thumb-post-br (translate [(- (/ mount-width 2) post-adj) (+ (/ mount-height -1.15) post-adj) 0] web-post))
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(def thumb-connectors
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(union
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(triangle-hulls ; top two
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(thumb-tl-place thumb-post-tr)
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(thumb-tl-place thumb-post-br)
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(thumb-tr-place thumb-post-tl)
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(thumb-tr-place thumb-post-bl))
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(triangle-hulls ; bottom two on the right
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(thumb-br-place web-post-tr)
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(thumb-br-place web-post-br)
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(thumb-mr-place web-post-tl)
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(thumb-mr-place web-post-bl))
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(triangle-hulls ; bottom two on the left
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(thumb-bl-place web-post-tr)
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(thumb-bl-place web-post-br)
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(thumb-ml-place web-post-tl)
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(thumb-ml-place web-post-bl))
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(triangle-hulls ; centers of the bottom four
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(thumb-br-place web-post-tl)
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(thumb-bl-place web-post-bl)
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(thumb-br-place web-post-tr)
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(thumb-bl-place web-post-br)
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(thumb-mr-place web-post-tl)
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(thumb-ml-place web-post-bl)
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(thumb-mr-place web-post-tr)
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(thumb-ml-place web-post-br))
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(triangle-hulls ; top two to the middle two, starting on the left
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(thumb-tl-place thumb-post-tl)
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(thumb-ml-place web-post-tr)
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(thumb-tl-place thumb-post-bl)
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(thumb-ml-place web-post-br)
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(thumb-tl-place thumb-post-br)
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(thumb-mr-place web-post-tr)
|
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(thumb-tr-place thumb-post-bl)
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(thumb-mr-place web-post-br)
|
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|
(thumb-tr-place thumb-post-br))
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|
|
(triangle-hulls ; top two to the main keyboard, starting on the left
|
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|
(thumb-tl-place thumb-post-tl)
|
|
|
(key-place 0 cornerrow web-post-bl)
|
|
|
(thumb-tl-place thumb-post-tr)
|
|
|
(key-place 0 cornerrow web-post-br)
|
|
|
(thumb-tr-place thumb-post-tl)
|
|
|
(key-place 1 cornerrow web-post-bl)
|
|
|
(thumb-tr-place thumb-post-tr)
|
|
|
(key-place 1 cornerrow web-post-br)
|
|
|
(key-place 2 lastrow web-post-tl)
|
|
|
(key-place 2 lastrow web-post-bl)
|
|
|
(thumb-tr-place thumb-post-tr)
|
|
|
(key-place 2 lastrow web-post-bl)
|
|
|
(thumb-tr-place thumb-post-br)
|
|
|
(key-place 2 lastrow web-post-br)
|
|
|
(key-place 3 lastrow web-post-bl)
|
|
|
(key-place 2 lastrow web-post-tr)
|
|
|
(key-place 3 lastrow web-post-tl)
|
|
|
(key-place 3 cornerrow web-post-bl)
|
|
|
(key-place 3 lastrow web-post-tr)
|
|
|
(key-place 3 cornerrow web-post-br)
|
|
|
(key-place 4 cornerrow web-post-bl))
|
|
|
(triangle-hulls
|
|
|
(key-place 1 cornerrow web-post-br)
|
|
|
(key-place 2 lastrow web-post-tl)
|
|
|
(key-place 2 cornerrow web-post-bl)
|
|
|
(key-place 2 lastrow web-post-tr)
|
|
|
(key-place 2 cornerrow web-post-br)
|
|
|
(key-place 3 cornerrow web-post-bl)
|
|
|
)
|
|
|
(triangle-hulls
|
|
|
(key-place 3 lastrow web-post-tr)
|
|
|
(key-place 3 lastrow web-post-br)
|
|
|
(key-place 3 lastrow web-post-tr)
|
|
|
(key-place 4 cornerrow web-post-bl))
|
|
|
))
|
|
|
|
|
|
;;;;;;;;;;
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|
;; Case ;;
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|
;;;;;;;;;;
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|
|
|
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|
(defn bottom [height p]
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|
(->> (project p)
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|
(extrude-linear {:height height :twist 0 :convexity 0})
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|
(translate [0 0 (/ height 2)])))
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(defn bottom-hull [& p]
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|
(hull p (bottom 10.001 p)))
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|
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(def wall-offset -15)
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|
|
|
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(defn wall-brace [place1 dx1 dy1 post1 place2 dx2 dy2 post2]
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(union
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|
(hull
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|
(place1 post1)
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|
(place1 (translate [0 0 wall-offset] post1))
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|
(place1 (translate [(* dx1 5) (* dy1 5) -4] post1))
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|
(place1 (translate [(* dx1 5) (* dy1 5) wall-offset] post1))
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|
(place2 post2)
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|
(place2 (translate [0 0 wall-offset] post2))
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|
(place2 (translate [(* dx2 5) (* dy2 5) -4] post2))
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|
(place2 (translate [(* dx2 5) (* dy2 5) wall-offset] post2)))
|
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|
(bottom-hull
|
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|
(place1 (translate [(* dx1 5) (* dy1 5) wall-offset] post1))
|
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|
(place1 (translate [0 0 wall-offset] post1))
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|
(place1 (translate [(* dx1 5) (* dy1 5) wall-offset] post1))
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|
(place2 (translate [0 0 wall-offset] post2))
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|
(place2 (translate [(* dx2 5) (* dy2 5) wall-offset] post2)))))
|
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|
|
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|
(defn key-wall-brace [x1 y1 dx1 dy1 post1 x2 y2 dx2 dy2 post2]
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|
(wall-brace (partial key-place x1 y1) dx1 dy1 post1
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|
(partial key-place x2 y2) dx2 dy2 post2))
|
|
|
|
|
|
(def case-walls
|
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|
(union
|
|
|
; back wall
|
|
|
(for [x (range 0 ncols)] (key-wall-brace x 0 0 1 web-post-tl x 0 0 1 web-post-tr))
|
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|
(for [x (range 1 ncols)] (key-wall-brace x 0 0 1 web-post-tl (dec x) 0 0 1 web-post-tr))
|
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|
(key-wall-brace 0 0 0 1 web-post-tl 0 0 -1 0 web-post-tl)
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|
(key-wall-brace lastcol 0 0 1 web-post-tr lastcol 0 1 0 web-post-tr)
|
|
|
; right wall
|
|
|
(for [y (range 0 lastrow)] (key-wall-brace lastcol y 1 0 web-post-tr lastcol y 1 0 web-post-br))
|
|
|
(for [y (range 1 lastrow)] (key-wall-brace lastcol (dec y) 1 0 web-post-br lastcol y 1 0 web-post-tr))
|
|
|
(key-wall-brace lastcol cornerrow 0 -1 web-post-br lastcol cornerrow 1 0 web-post-br)
|
|
|
; left wall
|
|
|
(for [y (range 0 lastrow)] (key-wall-brace 0 y -1 0 web-post-tl 0 y -1 0 web-post-bl))
|
|
|
(for [y (range 1 lastrow)] (key-wall-brace 0 (dec y) -1 0 web-post-bl 0 y -1 0 web-post-tl))
|
|
|
; front wall
|
|
|
(key-wall-brace 0 0 0 1 web-post-tl 0 0 -1 0 web-post-tl)
|
|
|
(key-wall-brace lastcol 0 0 1 web-post-tr lastcol 0 1 0 web-post-tr)
|
|
|
(key-wall-brace 3 lastrow 0 -1 web-post-bl 3 lastrow 0.5 -1 web-post-br)
|
|
|
(key-wall-brace 3 lastrow 0.5 -1 web-post-br 4 cornerrow 1 -1 web-post-bl)
|
|
|
(for [x (range 4 ncols)] (key-wall-brace x cornerrow 0 -1 web-post-bl x cornerrow 0 -1 web-post-br))
|
|
|
(for [x (range 5 ncols)] (key-wall-brace x cornerrow 0 -1 web-post-bl (dec x) cornerrow 0 -1 web-post-br))
|
|
|
; thumb walls
|
|
|
(wall-brace thumb-mr-place 0 -1 web-post-br thumb-tr-place 0 -1 thumb-post-br)
|
|
|
(wall-brace thumb-mr-place 0 -1 web-post-br thumb-mr-place 0 -1 web-post-bl)
|
|
|
(wall-brace thumb-br-place 0 -1 web-post-br thumb-br-place 0 -1 web-post-bl)
|
|
|
(wall-brace thumb-ml-place 0 1 web-post-tr thumb-ml-place 0 1 web-post-tl)
|
|
|
(wall-brace thumb-bl-place 0 1 web-post-tr thumb-bl-place 0 1 web-post-tl)
|
|
|
(wall-brace thumb-br-place -1 0 web-post-tl thumb-br-place -1 0 web-post-bl)
|
|
|
(wall-brace thumb-bl-place -1 0 web-post-tl thumb-bl-place -1 0 web-post-bl)
|
|
|
; thumb corners
|
|
|
(wall-brace thumb-br-place -1 0 web-post-bl thumb-br-place 0 -1 web-post-bl)
|
|
|
(wall-brace thumb-bl-place -1 0 web-post-tl thumb-bl-place 0 1 web-post-tl)
|
|
|
; thumb tweeners
|
|
|
(wall-brace thumb-mr-place 0 -1 web-post-bl thumb-br-place 0 -1 web-post-br)
|
|
|
(wall-brace thumb-ml-place 0 1 web-post-tl thumb-bl-place 0 1 web-post-tr)
|
|
|
(wall-brace thumb-bl-place -1 0 web-post-bl thumb-br-place -1 0 web-post-tl)
|
|
|
(wall-brace thumb-tr-place 0 -1 thumb-post-br (partial key-place 3 lastrow) 0 -1 web-post-bl)
|
|
|
; clunky bit on the top left thumb connection
|
|
|
(wall-brace thumb-ml-place 0 1 web-post-tr thumb-tl-place -2.5 0 thumb-post-tl)
|
|
|
(wall-brace thumb-tl-place -1 0 thumb-post-tl (partial key-place 0 cornerrow) -1 0 web-post-bl)
|
|
|
;; another incomplete try to fix this
|
|
|
; (bottom-hull (thumb-tl-place thumb-post-tl)
|
|
|
; (thumb-tl-place (translate [-7 0 0] thumb-post-tl))
|
|
|
; (thumb-ml-place web-post-tr)
|
|
|
; (thumb-ml-place (translate [0 5 -4] web-post-tr)))
|
|
|
))
|
|
|
|
|
|
(defn on-wall-place [column depth shape]
|
|
|
(translate [0 0 (- depth)]
|
|
|
(key-place column 0
|
|
|
(->> shape
|
|
|
(rotate (+ (* β (- centercol column)) (/ π 12)) [0 -1 0])
|
|
|
(rotate (* α centerrow) [-1 0 0])
|
|
|
(translate [0 (/ mount-height 2) wall-offset])
|
|
|
))))
|
|
|
|
|
|
(def rj9-cube (cube 14.78 13 22.38))
|
|
|
(def rj9-space (on-wall-place 1 20 rj9-cube))
|
|
|
(def rj9-holder (on-wall-place 1 20
|
|
|
(difference rj9-cube
|
|
|
(union (translate [0 2 0] (cube 10.78 9 18.38))
|
|
|
(translate [0 0 5] (cube 10.78 13 5))))))
|
|
|
|
|
|
(def teensy-width 20) ; was 20
|
|
|
(def teensy-height 12)
|
|
|
(def teensy-length 33)
|
|
|
(def teensy2-length 53)
|
|
|
(def teensy-pcb-thickness 1.6)
|
|
|
(def teensy-offset-height 5)
|
|
|
|
|
|
(def teensy-holder
|
|
|
(on-wall-place 0 20
|
|
|
(translate [-5 0 0]
|
|
|
(union
|
|
|
(->> (cube 3 (* 1.2 teensy2-length) (+ 6 teensy-width))
|
|
|
(translate [-1.5 -30 0]))
|
|
|
(->> (cube teensy-pcb-thickness (* 1.2 teensy2-length) 3)
|
|
|
(translate [(/ teensy-pcb-thickness 2) -30 (- -1.5 (/ teensy-width 2))]))
|
|
|
(->> (cube 4 (* 1.2 teensy2-length) 4)
|
|
|
(translate [(+ 2 teensy-pcb-thickness) -30 (- -1 (/ teensy-width 2))]))
|
|
|
(->> (cube teensy-pcb-thickness (* 0.2 teensy2-length) 3)
|
|
|
(translate [(/ teensy-pcb-thickness 2) (+ (* 0.5 teensy2-length) -30) (+ 1.5 (/ teensy-width 2))]))
|
|
|
(->> (cube 4 (* 0.2 teensy2-length) 4)
|
|
|
(translate [(+ 2 teensy-pcb-thickness) (+ (* 0.5 teensy2-length) -30) (+ 1 (/ teensy-width 2))]))
|
|
|
))))
|
|
|
|
|
|
(def usb-cutout
|
|
|
(let [hole-height 6.2
|
|
|
side-radius (/ hole-height 2)
|
|
|
hole-width 10.75
|
|
|
side-cylinder (->> (cylinder side-radius teensy-length)
|
|
|
(with-fn 20)
|
|
|
(translate [(/ (- hole-width hole-height) 2) 0 0]))]
|
|
|
(->> (hull side-cylinder
|
|
|
(mirror [-1 0 0] side-cylinder))
|
|
|
(rotate (/ π 2) [1 0 0])
|
|
|
(rotate (/ π 2) [0 1 0])
|
|
|
(on-wall-place 0 20))))
|
|
|
|
|
|
|
|
|
(defn hex-spacer [column row radius height]
|
|
|
(let [position (key-position column row [0 0 0])
|
|
|
column-offset (/ mount-width 2)
|
|
|
row-offset (/ mount-height 2)
|
|
|
shift-right (= column lastcol)
|
|
|
shift-left (= column 0)
|
|
|
shift-up (and (not (or shift-right shift-left)) (= row 0))
|
|
|
shift-down (and (not (or shift-right shift-left)) (= row lastrow))
|
|
|
is-vertical (or shift-left shift-right)
|
|
|
col-angle (+ (* β (- centercol column)) (/ π 12))
|
|
|
row-angle (* α (- row centerrow))]
|
|
|
(->> (cylinder radius height)
|
|
|
(rotate (if is-vertical (/ π 6) 0) [0 0 1])
|
|
|
(translate [(first position) (second position) (/ height 2)])
|
|
|
(translate [(* (if shift-right 1 (if shift-left -1 0)) column-offset)
|
|
|
(* (if shift-up 1 (if shift-down -1 0)) row-offset)
|
|
|
0])
|
|
|
(translate [(* wall-offset (Math/sin col-angle))
|
|
|
(* wall-offset (Math/sin row-angle))
|
|
|
0])
|
|
|
(with-fn 6))))
|
|
|
|
|
|
(defn hex-spacer-shapes [radius height]
|
|
|
(union (hex-spacer 0 0 radius height)
|
|
|
(hex-spacer 0 cornerrow radius height)
|
|
|
(hex-spacer 3 lastrow radius height)
|
|
|
(hex-spacer 2 0 radius height)
|
|
|
(hex-spacer lastcol (dec cornerrow) radius height)
|
|
|
))
|
|
|
(def hex-spacer-height 10)
|
|
|
(def hex-spacer-radius (/ 5.42 2))
|
|
|
(def hex-spacer-holes (hex-spacer-shapes hex-spacer-radius hex-spacer-height))
|
|
|
(def hex-spacer-outers (hex-spacer-shapes (+ hex-spacer-radius 1.6) (+ hex-spacer-height 1.6)))
|
|
|
|
|
|
|
|
|
;; teensy info
|
|
|
; base width - 18
|
|
|
; height - 1.45
|
|
|
;
|
|
|
|
|
|
(spit "things/right.scad"
|
|
|
(write-scad (union
|
|
|
key-holes
|
|
|
connectors
|
|
|
thumb
|
|
|
thumb-connectors
|
|
|
(difference case-walls rj9-space usb-cutout hex-spacer-holes)
|
|
|
rj9-holder
|
|
|
(if (= nrows 4) teensy-holder)
|
|
|
hex-spacer-outers
|
|
|
; thumbcaps
|
|
|
; caps
|
|
|
)))
|
|
|
|
|
|
|