762 lines
33 KiB
Clojure
762 lines
33 KiB
Clojure
(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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(defn deg2rad [degrees]
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(* (/ degrees 180) pi))
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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 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 tenting-angle (/ π 12)) ; or, change this for more precise tenting control
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(def column-style
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(if (> nrows 5) :orthographic :standard)) ; options include :standard, :orthographic, and :fixed
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; (def column-style :fixed)
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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 -12 5.64] ; original [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 9) ; controls overall height; original=9 with centercol=3; use 15 for centercol=2
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(def extra-width 2.5) ; extra space between the base of keys; original= 2
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(def extra-height 1.0) ; original= 0.5
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(def wall-z-offset -15) ; length of the first downward-sloping part of the wall (negative)
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(def wall-xy-offset 5) ; offset in the x and/or y direction for the first downward-sloping part of the wall (negative)
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(def wall-thickness 2) ; wall thickness parameter; originally 5
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;; Settings for column-style == :fixed
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;; The defaults roughly match Maltron settings
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;; http://patentimages.storage.googleapis.com/EP0219944A2/imgf0002.png
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;; Fixed-z overrides the z portion of the column ofsets above.
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;; NOTE: THIS DOESN'T WORK QUITE LIKE I'D HOPED.
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(def fixed-angles [(deg2rad 10) (deg2rad 10) 0 0 0 (deg2rad -15) (deg2rad -15)])
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(def fixed-x [-41.5 -22.5 0 20.3 41.4 65.5 89.6]) ; relative to the middle finger
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(def fixed-z [12.1 8.3 0 5 10.7 14.5 17.5])
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(def fixed-tenting (deg2rad 0))
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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 extra-height) 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 extra-width) 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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(def column-base-angle (* β (- centercol 2)))
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(defn apply-key-geometry [translate-fn rotate-x-fn rotate-y-fn column row shape]
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(let [column-angle (* β (- centercol column))
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placed-shape (->> shape
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(translate-fn [0 0 (- row-radius)])
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(rotate-x-fn (* α (- centerrow row)))
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(translate-fn [0 0 row-radius])
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(translate-fn [0 0 (- column-radius)])
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(rotate-y-fn column-angle)
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(translate-fn [0 0 column-radius])
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(translate-fn (column-offset column)))
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column-z-delta (* column-radius (- 1 (Math/cos column-angle)))
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placed-shape-ortho (->> shape
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(translate-fn [0 0 (- row-radius)])
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(rotate-x-fn (* α (- centerrow row)))
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(translate-fn [0 0 row-radius])
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(rotate-y-fn column-angle)
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(translate-fn [(- (* (- column centercol) column-x-delta)) 0 column-z-delta])
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(translate-fn (column-offset column)))
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placed-shape-fixed (->> shape
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(rotate-y-fn (nth fixed-angles column))
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(translate-fn [(nth fixed-x column) 0 (nth fixed-z column)])
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(translate-fn [0 0 (- (+ row-radius (nth fixed-z column)))])
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(rotate-x-fn (* α (- centerrow row)))
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(translate-fn [0 0 (+ row-radius (nth fixed-z column))])
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(rotate-y-fn fixed-tenting)
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(translate-fn [0 (second (column-offset column)) 0])
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)]
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(->> (case column-style
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:orthographic placed-shape-ortho
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:fixed placed-shape-fixed
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placed-shape)
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(rotate-y-fn tenting-angle)
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(translate-fn [0 0 keyboard-z-offset]))))
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(defn key-place [column row shape]
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(apply-key-geometry translate
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(fn [angle obj] (rotate angle [1 0 0] obj))
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(fn [angle obj] (rotate angle [0 1 0] obj))
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column row shape))
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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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(apply-key-geometry (partial map +) rotate-around-x rotate-around-y column row position))
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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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; (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 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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(rotate (deg2rad 10) [1 0 0])
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(rotate (deg2rad -23) [0 1 0])
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(rotate (deg2rad 10) [0 0 1])
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(translate thumborigin)
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(translate [-12 -16 3])
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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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(rotate (deg2rad 10) [1 0 0])
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(rotate (deg2rad -23) [0 1 0])
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(rotate (deg2rad 10) [0 0 1])
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(translate thumborigin)
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(translate [-32 -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)
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(key-place 0 cornerrow web-post-bl)
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(thumb-tl-place thumb-post-tr)
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(key-place 0 cornerrow web-post-br)
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(thumb-tr-place thumb-post-tl)
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(key-place 1 cornerrow web-post-bl)
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(thumb-tr-place thumb-post-tr)
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(key-place 1 cornerrow web-post-br)
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(key-place 2 lastrow web-post-tl)
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(key-place 2 lastrow web-post-bl)
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(thumb-tr-place thumb-post-tr)
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(key-place 2 lastrow web-post-bl)
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(thumb-tr-place thumb-post-br)
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(key-place 2 lastrow web-post-br)
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(key-place 3 lastrow web-post-bl)
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(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))
|
||
))
|
||
|
||
;;;;;;;;;;
|
||
;; Case ;;
|
||
;;;;;;;;;;
|
||
|
||
(defn bottom [height p]
|
||
(->> (project p)
|
||
(extrude-linear {:height height :twist 0 :convexity 0})
|
||
(translate [0 0 (- (/ height 2) 10)])))
|
||
|
||
(defn bottom-hull [& p]
|
||
(hull p (bottom 0.001 p)))
|
||
|
||
(def left-wall-x-offset 10)
|
||
(def left-wall-z-offset 3)
|
||
|
||
(defn left-key-position [row direction]
|
||
(map - (key-position 0 row [(* mount-width -0.5) (* direction mount-height 0.5) 0]) [left-wall-x-offset 0 left-wall-z-offset]) )
|
||
|
||
(defn left-key-place [row direction shape]
|
||
(translate (left-key-position row direction) shape))
|
||
|
||
|
||
(defn wall-locate1 [dx dy] [(* dx wall-thickness) (* dy wall-thickness) -1])
|
||
(defn wall-locate2 [dx dy] [(* dx wall-xy-offset) (* dy wall-xy-offset) wall-z-offset])
|
||
(defn wall-locate3 [dx dy] [(* dx (+ wall-xy-offset wall-thickness)) (* dy (+ wall-xy-offset wall-thickness)) wall-z-offset])
|
||
|
||
(defn wall-brace [place1 dx1 dy1 post1 place2 dx2 dy2 post2]
|
||
(union
|
||
(hull
|
||
(place1 post1)
|
||
(place1 (translate (wall-locate1 dx1 dy1) post1))
|
||
(place1 (translate (wall-locate2 dx1 dy1) post1))
|
||
(place1 (translate (wall-locate3 dx1 dy1) post1))
|
||
(place2 post2)
|
||
(place2 (translate (wall-locate1 dx2 dy2) post2))
|
||
(place2 (translate (wall-locate2 dx2 dy2) post2))
|
||
(place2 (translate (wall-locate3 dx2 dy2) post2)))
|
||
(bottom-hull
|
||
(place1 (translate (wall-locate2 dx1 dy1) post1))
|
||
(place1 (translate (wall-locate3 dx1 dy1) post1))
|
||
(place2 (translate (wall-locate2 dx2 dy2) post2))
|
||
(place2 (translate (wall-locate3 dx2 dy2) post2)))
|
||
))
|
||
|
||
(defn key-wall-brace [x1 y1 dx1 dy1 post1 x2 y2 dx2 dy2 post2]
|
||
(wall-brace (partial key-place x1 y1) dx1 dy1 post1
|
||
(partial key-place x2 y2) dx2 dy2 post2))
|
||
|
||
(def case-walls
|
||
(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))
|
||
(for [x (range 1 ncols)] (key-wall-brace x 0 0 1 web-post-tl (dec x) 0 0 1 web-post-tr))
|
||
(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)] (union (wall-brace (partial left-key-place y 1) -1 0 web-post (partial left-key-place y -1) -1 0 web-post)
|
||
(hull (key-place 0 y web-post-tl)
|
||
(key-place 0 y web-post-bl)
|
||
(left-key-place y 1 web-post)
|
||
(left-key-place y -1 web-post))))
|
||
(for [y (range 1 lastrow)] (union (wall-brace (partial left-key-place (dec y) -1) -1 0 web-post (partial left-key-place y 1) -1 0 web-post)
|
||
(hull (key-place 0 y web-post-tl)
|
||
(key-place 0 (dec y) web-post-bl)
|
||
(left-key-place y 1 web-post)
|
||
(left-key-place (dec y) -1 web-post))))
|
||
(wall-brace (partial key-place 0 0) 0 1 web-post-tl (partial left-key-place 0 1) 0 1 web-post)
|
||
(wall-brace (partial left-key-place 0 1) 0 1 web-post (partial left-key-place 0 1) -1 0 web-post)
|
||
; front wall
|
||
(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 -0.3 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 (normal connectors don't work well)
|
||
(bottom-hull
|
||
(left-key-place cornerrow -1 (translate (wall-locate2 -1 0) web-post))
|
||
(left-key-place cornerrow -1 (translate (wall-locate3 -1 0) web-post))
|
||
(thumb-ml-place (translate (wall-locate2 -0.3 1) web-post-tr))
|
||
(thumb-ml-place (translate (wall-locate3 -0.3 1) web-post-tr)))
|
||
(hull
|
||
(left-key-place cornerrow -1 (translate (wall-locate2 -1 0) web-post))
|
||
(left-key-place cornerrow -1 (translate (wall-locate3 -1 0) web-post))
|
||
(thumb-ml-place (translate (wall-locate2 -0.3 1) web-post-tr))
|
||
(thumb-ml-place (translate (wall-locate3 -0.3 1) web-post-tr))
|
||
(thumb-tl-place thumb-post-tl))
|
||
(hull
|
||
(left-key-place cornerrow -1 web-post)
|
||
(left-key-place cornerrow -1 (translate (wall-locate1 -1 0) web-post))
|
||
(left-key-place cornerrow -1 (translate (wall-locate2 -1 0) web-post))
|
||
(left-key-place cornerrow -1 (translate (wall-locate3 -1 0) web-post))
|
||
(thumb-tl-place thumb-post-tl))
|
||
(hull
|
||
(left-key-place cornerrow -1 web-post)
|
||
(left-key-place cornerrow -1 (translate (wall-locate1 -1 0) web-post))
|
||
(key-place 0 cornerrow web-post-bl)
|
||
(key-place 0 cornerrow (translate (wall-locate1 -1 0) web-post-bl))
|
||
(thumb-tl-place thumb-post-tl))
|
||
(hull
|
||
(thumb-ml-place web-post-tr)
|
||
(thumb-ml-place (translate (wall-locate1 -0.3 1) web-post-tr))
|
||
(thumb-ml-place (translate (wall-locate2 -0.3 1) web-post-tr))
|
||
(thumb-ml-place (translate (wall-locate3 -0.3 1) web-post-tr))
|
||
(thumb-tl-place thumb-post-tl))
|
||
))
|
||
|
||
|
||
(def rj9-start (map + [0 -3 0] (key-position 0 0 (map + (wall-locate3 0 1) [0 (/ mount-height 2) 0]))))
|
||
(def rj9-position [(first rj9-start) (second rj9-start) 11])
|
||
(def rj9-cube (cube 14.78 13 22.38))
|
||
(def rj9-space (translate rj9-position rj9-cube))
|
||
(def rj9-holder (translate rj9-position
|
||
(difference rj9-cube
|
||
(union (translate [0 2 0] (cube 10.78 9 18.38))
|
||
(translate [0 0 5] (cube 10.78 13 5))))))
|
||
|
||
(def usb-holder-position (key-position 1 0 (map + (wall-locate2 0 1) [0 (/ mount-height 2) 0])))
|
||
(def usb-holder-size [6.5 10.0 13.6])
|
||
(def usb-holder-thickness 4)
|
||
(def usb-holder
|
||
(->> (cube (+ (first usb-holder-size) usb-holder-thickness) (second usb-holder-size) (+ (last usb-holder-size) usb-holder-thickness))
|
||
(translate [(first usb-holder-position) (second usb-holder-position) (/ (+ (last usb-holder-size) usb-holder-thickness) 2)])))
|
||
(def usb-holder-hole
|
||
(->> (apply cube usb-holder-size)
|
||
(translate [(first usb-holder-position) (second usb-holder-position) (/ (+ (last usb-holder-size) usb-holder-thickness) 2)])))
|
||
|
||
(def teensy-width 20)
|
||
(def teensy-height 12)
|
||
(def teensy-length 33)
|
||
(def teensy2-length 53)
|
||
(def teensy-pcb-thickness 2)
|
||
(def teensy-holder-width (+ 7 teensy-pcb-thickness))
|
||
(def teensy-holder-height (+ 6 teensy-width))
|
||
(def teensy-offset-height 5)
|
||
(def teensy-holder-top-length 18)
|
||
(def teensy-top-xy (key-position 0 (- centerrow 1) (wall-locate3 -1 0)))
|
||
(def teensy-bot-xy (key-position 0 (+ centerrow 1) (wall-locate3 -1 0)))
|
||
(def teensy-holder-length (- (second teensy-top-xy) (second teensy-bot-xy)))
|
||
(def teensy-holder-offset (/ teensy-holder-length -2))
|
||
(def teensy-holder-top-offset (- (/ teensy-holder-top-length 2) teensy-holder-length))
|
||
|
||
(def teensy-holder
|
||
(->>
|
||
(union
|
||
(->> (cube 3 teensy-holder-length (+ 6 teensy-width))
|
||
(translate [1.5 teensy-holder-offset 0]))
|
||
(->> (cube teensy-pcb-thickness teensy-holder-length 3)
|
||
(translate [(+ (/ teensy-pcb-thickness 2) 3) teensy-holder-offset (- -1.5 (/ teensy-width 2))]))
|
||
(->> (cube 4 teensy-holder-length 4)
|
||
(translate [(+ teensy-pcb-thickness 5) teensy-holder-offset (- -1 (/ teensy-width 2))]))
|
||
(->> (cube teensy-pcb-thickness teensy-holder-top-length 3)
|
||
(translate [(+ (/ teensy-pcb-thickness 2) 3) teensy-holder-top-offset (+ 1.5 (/ teensy-width 2))]))
|
||
(->> (cube 4 teensy-holder-top-length 4)
|
||
(translate [(+ teensy-pcb-thickness 5) teensy-holder-top-offset (+ 1 (/ teensy-width 2))])))
|
||
(translate [(- teensy-holder-width) 0 0])
|
||
(translate [(- 1) 0 0])
|
||
(translate [(first teensy-top-xy)
|
||
(- (second teensy-top-xy) 1)
|
||
(/ (+ 6 teensy-width) 2)])
|
||
))
|
||
|
||
(defn screw-insert-shape [bottom-radius top-radius height]
|
||
(union (cylinder [bottom-radius top-radius] height)
|
||
(translate [0 0 (/ height 2)] (sphere top-radius))))
|
||
|
||
(defn screw-insert [column row bottom-radius top-radius height]
|
||
(let [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))
|
||
position (if shift-up (key-position column row (map + (wall-locate2 0 1) [0 (/ mount-height 2) 0]))
|
||
(if shift-down (key-position column row (map - (wall-locate2 0 -1) [0 (/ mount-height 2) 0]))
|
||
(if shift-left (map + (left-key-position row 0) (wall-locate3 -1 0))
|
||
(key-position column row (map + (wall-locate2 1 0) [(/ mount-width 2) 0 0])))))
|
||
]
|
||
(->> (screw-insert-shape bottom-radius top-radius height)
|
||
(translate [(first position) (second position) (/ height 2)])
|
||
)))
|
||
|
||
(defn screw-insert-all-shapes [bottom-radius top-radius height]
|
||
(union (screw-insert 0 0 bottom-radius top-radius height)
|
||
(screw-insert 0 lastrow bottom-radius top-radius height)
|
||
(screw-insert 2 (+ lastrow 0.3) bottom-radius top-radius height)
|
||
(screw-insert 3 0 bottom-radius top-radius height)
|
||
(screw-insert lastcol 1 bottom-radius top-radius height)
|
||
))
|
||
(def screw-insert-height 3.8)
|
||
(def screw-insert-bottom-radius (/ 5.31 2))
|
||
(def screw-insert-top-radius (/ 5.1 2))
|
||
(def screw-insert-holes (screw-insert-all-shapes screw-insert-bottom-radius screw-insert-top-radius screw-insert-height))
|
||
(def screw-insert-outers (screw-insert-all-shapes (+ screw-insert-bottom-radius 1.6) (+ screw-insert-top-radius 1.6) (+ screw-insert-height 1.5)))
|
||
(def screw-insert-screw-holes (screw-insert-all-shapes 1.7 1.7 350))
|
||
|
||
(def wire-post-height 7)
|
||
(def wire-post-overhang 3.5)
|
||
(def wire-post-diameter 2.6)
|
||
(defn wire-post [direction offset]
|
||
(->> (union (translate [0 (* wire-post-diameter -0.5 direction) 0] (cube wire-post-diameter wire-post-diameter wire-post-height))
|
||
(translate [0 (* wire-post-overhang -0.5 direction) (/ wire-post-height -2)] (cube wire-post-diameter wire-post-overhang wire-post-diameter)))
|
||
(translate [0 (- offset) (+ (/ wire-post-height -2) 3) ])
|
||
(rotate (/ α -2) [1 0 0])
|
||
(translate [3 (/ mount-height -2) 0])))
|
||
|
||
(def wire-posts
|
||
(union
|
||
(thumb-ml-place (translate [-5 0 -2] (wire-post 1 0)))
|
||
(thumb-ml-place (translate [ 0 0 -2.5] (wire-post -1 6)))
|
||
(thumb-ml-place (translate [ 5 0 -2] (wire-post 1 0)))
|
||
(for [column (range 0 lastcol)
|
||
row (range 0 cornerrow)]
|
||
(union
|
||
(key-place column row (translate [-5 0 0] (wire-post 1 0)))
|
||
(key-place column row (translate [0 0 0] (wire-post -1 6)))
|
||
(key-place column row (translate [5 0 0] (wire-post 1 0)))))))
|
||
|
||
|
||
(def model-right (difference
|
||
(union
|
||
key-holes
|
||
connectors
|
||
thumb
|
||
thumb-connectors
|
||
(difference (union case-walls
|
||
screw-insert-outers
|
||
teensy-holder
|
||
usb-holder)
|
||
rj9-space
|
||
usb-holder-hole
|
||
screw-insert-holes)
|
||
rj9-holder
|
||
wire-posts
|
||
; thumbcaps
|
||
; caps
|
||
)
|
||
(translate [0 0 -20] (cube 350 350 40))
|
||
))
|
||
|
||
(spit "things/right.scad"
|
||
(write-scad model-right))
|
||
|
||
(spit "things/left.scad"
|
||
(write-scad (mirror [-1 0 0] model-right)))
|
||
|
||
(spit "things/right-test.scad"
|
||
(write-scad
|
||
(union
|
||
key-holes
|
||
connectors
|
||
thumb
|
||
thumb-connectors
|
||
case-walls
|
||
thumbcaps
|
||
caps
|
||
teensy-holder
|
||
rj9-holder
|
||
usb-holder-hole
|
||
; usb-holder-hole
|
||
; ; teensy-holder-hole
|
||
; screw-insert-outers
|
||
; teensy-screw-insert-holes
|
||
; teensy-screw-insert-outers
|
||
; usb-cutout
|
||
; rj9-space
|
||
; wire-posts
|
||
)))
|
||
|
||
(spit "things/right-plate.scad"
|
||
(write-scad
|
||
(cut
|
||
(translate [0 0 -0.1]
|
||
(difference (union case-walls
|
||
teensy-holder
|
||
; rj9-holder
|
||
screw-insert-outers)
|
||
(translate [0 0 -10] screw-insert-screw-holes))
|
||
))))
|
||
|
||
(spit "things/test.scad"
|
||
(write-scad
|
||
(difference usb-holder usb-holder-hole)))
|
||
|
||
|
||
|
||
(defn -main [] 1) ; dummy to make it easier to batch |