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-rw-r--r--src/dactyl_keyboard/dactyl.clj204
1 files changed, 122 insertions, 82 deletions
diff --git a/src/dactyl_keyboard/dactyl.clj b/src/dactyl_keyboard/dactyl.clj
index c1287fa..358ee24 100644
--- a/src/dactyl_keyboard/dactyl.clj
+++ b/src/dactyl_keyboard/dactyl.clj
@@ -6,6 +6,9 @@
[unicode-math.core :refer :all]))
+(defn deg2rad [degrees]
+ (* (/ degrees 180) pi))
+
;;;;;;;;;;;;;;;;;;;;;;
;; Shape parameters ;;
;;;;;;;;;;;;;;;;;;;;;;
@@ -14,20 +17,26 @@
(def ncols 5)
(def α (/ π 12)) ; curvature of the columns
-(def β (/ π (if (= nrows 4) 26 36))) ; curvature of the rows
+(def β (/ π 36)) ; curvature of the rows
(def centerrow (- nrows 3)) ; controls front-back tilt
(def centercol 3) ; controls left-right tilt / tenting (higher number is more tenting)
(def orthographic-x (> nrows 5)) ; for larger number of rows don't curve them in as much
-; (def orthographic-x true) ; controls curvature of rowS
+; (def orthographic-x true) ; controls curvature of rows
+(def maltron-style false) ; use fixed angles for columns
+(def maltron-angles [(deg2rad 10) (deg2rad 10) 0 0 0 (deg2rad -15) (deg2rad -15)]) ; starting point: http://patentimages.storage.googleapis.com/EP0219944A2/imgf0002.png
(defn column-offset [column] (cond
(= column 2) [0 2.82 -4.5]
- (>= column 4) [0 -5.8 5.64]
+ (>= column 4) [0 -12 5.64] ; original [0 -5.8 5.64]
:else [0 0 0]))
(def thumb-offsets [6 -3 7])
-(def keyboard-z-offset 24) ; controls height
+(def keyboard-z-offset 9) ; controls height; original=24
+
+(def extra-width 2.5) ; extra space between the base of keys; original= 2
+(def extra-height 1.0) ; origin= 1/2
+
;;;;;;;;;;;;;;;;;;;;;;;
;; General variables ;;
@@ -123,13 +132,14 @@
(def rows (range 0 nrows))
(def cap-top-height (+ plate-thickness sa-profile-key-height))
-(def row-radius (+ (/ (/ (+ mount-height 1/2) 2)
+(def row-radius (+ (/ (/ (+ mount-height extra-height) 2)
(Math/sin (/ α 2)))
cap-top-height))
-(def column-radius (+ (/ (/ (+ mount-width 2.0) 2)
+(def column-radius (+ (/ (/ (+ mount-width extra-width) 2)
(Math/sin (/ β 2)))
cap-top-height))
(def column-x-delta (+ -1 (- (* column-radius (Math/sin β)))))
+(def column-base-angle (* β (- centercol 2)))
(defn key-place [column row shape]
(let [row-placed-shape (->> shape
@@ -144,10 +154,10 @@
(translate (column-offset column)))
column-z-delta (* column-radius (- 1 (Math/cos column-angle)))
placed-shape-ortho (->> row-placed-shape
- (rotate column-angle [0 1 0])
+ (rotate (if maltron-style (+ column-base-angle (nth maltron-angles column)) column-angle) [0 1 0])
(translate [(- (* (- column centercol) column-x-delta)) 0 column-z-delta])
(translate (column-offset column)))]
- (->> (if orthographic-x placed-shape-ortho placed-shape)
+ (->> (if (or maltron-style orthographic-x) placed-shape-ortho placed-shape)
(rotate (/ π 12) [0 1 0])
(translate [0 0 keyboard-z-offset]))))
@@ -196,15 +206,15 @@
(map + (column-offset column)))
column-z-delta (* column-radius (- 1 (Math/cos column-angle)))
placed-position-ortho (->> row-position
- (rotate-around-y column-angle)
+ (rotate-around-y (if maltron-style (+ column-base-angle (nth maltron-angles column)) column-angle))
(map + [(- (* (- column centercol) column-x-delta)) 0 column-z-delta])
(map + (column-offset column)))]
- (->> (if orthographic-x placed-position-ortho placed-position)
+ (->> (if (or maltron-style orthographic-x) placed-position-ortho placed-position)
(rotate-around-y (/ π 12))
- (map + [0 0 24]))))
+ (map + [0 0 keyboard-z-offset]))))
; (pr (rotate-around-y π [10 0 1]))
-; (pr (key-position 1 cornerrow [(/ mount-width 2) (- (/ mount-height 2)) 0]))
+(pr (key-position 1 cornerrow [(/ mount-width 2) (- (/ mount-height 2)) 0]))
;;;;;;;;;;;;;;;;;;;;
;; Web Connectors ;;
@@ -266,24 +276,27 @@
thumb-offsets))
; (pr thumborigin)
-(defn deg2rad [degrees]
- (* (/ degrees 180) pi))
-
(defn thumb-tr-place [shape]
(->> shape
+ ; (rotate (deg2rad 10) [1 0 0])
+ ; (rotate (deg2rad -23) [0 1 0])
+ ; (rotate (deg2rad -3) [0 0 1])
(rotate (deg2rad 10) [1 0 0])
(rotate (deg2rad -23) [0 1 0])
- (rotate (deg2rad -3) [0 0 1])
+ (rotate (deg2rad 10) [0 0 1])
(translate thumborigin)
- (translate [-10 -16 0])
+ (translate [-12 -16 3])
))
(defn thumb-tl-place [shape]
(->> shape
+ ; (rotate (deg2rad 10) [1 0 0])
+ ; (rotate (deg2rad -23) [0 1 0])
+ ; (rotate (deg2rad -3) [0 0 1])
(rotate (deg2rad 10) [1 0 0])
(rotate (deg2rad -23) [0 1 0])
- (rotate (deg2rad -3) [0 0 1])
+ (rotate (deg2rad 10) [0 0 1])
(translate thumborigin)
- (translate [-30 -15 -2])))
+ (translate [-32 -15 -2])))
(defn thumb-mr-place [shape]
(->> shape
(rotate (deg2rad -6) [1 0 0])
@@ -434,30 +447,31 @@
(defn bottom [height p]
(->> (project p)
(extrude-linear {:height height :twist 0 :convexity 0})
- (translate [0 0 (/ height 2)])))
+ (translate [0 0 (- (/ height 2) 10)])))
(defn bottom-hull [& p]
- (hull p (bottom 10.001 p)))
+ (hull p (bottom 0.001 p)))
(def wall-offset -15)
+(def wall-thickness 2) ; originally 5
(defn wall-brace [place1 dx1 dy1 post1 place2 dx2 dy2 post2]
(union
(hull
(place1 post1)
(place1 (translate [0 0 wall-offset] post1))
- (place1 (translate [(* dx1 5) (* dy1 5) -4] post1))
- (place1 (translate [(* dx1 5) (* dy1 5) wall-offset] post1))
+ (place1 (translate [(* dx1 wall-thickness) (* dy1 wall-thickness) -4] post1))
+ (place1 (translate [(* dx1 wall-thickness) (* dy1 wall-thickness) wall-offset] post1))
(place2 post2)
(place2 (translate [0 0 wall-offset] post2))
- (place2 (translate [(* dx2 5) (* dy2 5) -4] post2))
- (place2 (translate [(* dx2 5) (* dy2 5) wall-offset] post2)))
+ (place2 (translate [(* dx2 wall-thickness) (* dy2 wall-thickness) -4] post2))
+ (place2 (translate [(* dx2 wall-thickness) (* dy2 wall-thickness) wall-offset] post2)))
(bottom-hull
- (place1 (translate [(* dx1 5) (* dy1 5) wall-offset] post1))
+ (place1 (translate [(* dx1 wall-thickness) (* dy1 wall-thickness) wall-offset] post1))
(place1 (translate [0 0 wall-offset] post1))
- (place1 (translate [(* dx1 5) (* dy1 5) wall-offset] post1))
+ (place1 (translate [(* dx1 wall-thickness) (* dy1 wall-thickness) wall-offset] post1))
(place2 (translate [0 0 wall-offset] post2))
- (place2 (translate [(* dx2 5) (* dy2 5) wall-offset] post2)))))
+ (place2 (translate [(* dx2 wall-thickness) (* dy2 wall-thickness) wall-offset] 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
@@ -519,7 +533,7 @@
(translate [0 (/ mount-height 2) wall-offset])
))))
-(def rj9-vertical-offset (- (last (key-position 0 0 [0 (/ mount-height 2) 0])) 40))
+(def rj9-vertical-offset (- (last (key-position 0 0 [0 (/ mount-height 2) 0])) 35))
(def rj9-cube (cube 14.78 13 22.38))
(def rj9-space (on-wall-place 1 rj9-vertical-offset rj9-cube))
(def rj9-holder (on-wall-place 1 rj9-vertical-offset
@@ -527,34 +541,38 @@
(union (translate [0 2 0] (cube 10.78 9 18.38))
(translate [0 0 5] (cube 10.78 13 5))))))
+(def teensy-vertical-offset (+ rj9-vertical-offset 10))
(def teensy-width 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-vertical-offset )
+(def teensy-holder-length 68)
+(def teensy-holder-offset (- 0 (/ teensy-holder-length 2)))
+(def teensy-holder-top-length 14)
+(def teensy-holder-top-offset (- 1 (/ teensy-holder-top-length 2)))
(def teensy-holder
- (on-wall-place 0 rj9-vertical-offset
+ (on-wall-place 0 teensy-vertical-offset
(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))]))
+ (->> (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) teensy-holder-offset (- -1.5 (/ teensy-width 2))]))
+ (->> (cube 4 teensy-holder-length 4)
+ (translate [(+ 2 teensy-pcb-thickness) teensy-holder-offset (- -1 (/ teensy-width 2))]))
+ (->> (cube teensy-pcb-thickness teensy-holder-top-length 3)
+ (translate [(/ teensy-pcb-thickness 2) teensy-holder-top-offset (+ 1.5 (/ teensy-width 2))]))
+ (->> (cube 4 teensy-holder-top-length 4)
+ (translate [(+ 2 teensy-pcb-thickness) teensy-holder-top-offset (+ 1 (/ teensy-width 2))]))
))))
(def usb-cutout
- (let [hole-height 6.2
+ (let [hole-height 7.5
side-radius (/ hole-height 2)
- hole-width 10.75
+ hole-width 12
side-cylinder (->> (cylinder side-radius teensy-length)
(with-fn 20)
(translate [(/ (- hole-width hole-height) 2) 0 0]))]
@@ -562,10 +580,13 @@
(mirror [-1 0 0] side-cylinder))
(rotate (/ π 2) [1 0 0])
(rotate (/ π 2) [0 1 0])
- (on-wall-place 0 rj9-vertical-offset))))
+ (on-wall-place 0 teensy-vertical-offset))))
+(def usb-cutout
+ (on-wall-place 0 teensy-vertical-offset (->> (cube 9 30 12)
+ (translate [-1 10 0]))))
-(defn hex-spacer [column row radius height]
+(defn screw-insert [column row bottom-radius top-radius height]
(let [position (key-position column row [0 0 0])
column-offset (/ mount-width 2)
row-offset (/ mount-height 2)
@@ -576,55 +597,74 @@
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])
+ (->> (union (cylinder [bottom-radius top-radius] height)
+ (translate [0 0 (/ height 2)] (sphere top-radius)))
(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 3 0 radius height)
- (hex-spacer lastcol (dec cornerrow) radius height)
+ 0]))))
+
+(defn screw-insert-shapes [bottom-radius top-radius height]
+ (union (screw-insert 0 0 bottom-radius top-radius height)
+ (screw-insert 0 cornerrow bottom-radius top-radius height)
+ (screw-insert 3 lastrow bottom-radius top-radius height)
+ (screw-insert 3 0 bottom-radius top-radius height)
+ ; (screw-insert 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)))
-
+(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-shapes screw-insert-bottom-radius screw-insert-top-radius screw-insert-height))
+(def screw-insert-outers (screw-insert-shapes (+ screw-insert-bottom-radius 1.6) (+ screw-insert-top-radius 1.6) (+ screw-insert-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 (union case-walls hex-spacer-outers)
- rj9-space
- usb-cutout
- hex-spacer-holes)
- rj9-holder
- (if (= nrows 4) teensy-holder)
-
- ; thumbcaps
- ; caps
- )))
+ (write-scad (difference
+ (union
+ key-holes
+ connectors
+ thumb
+ thumb-connectors
+ (difference (union case-walls
+ screw-insert-outers
+ (if (= nrows 4) teensy-holder))
+ rj9-space
+ usb-cutout
+ screw-insert-holes)
+ rj9-holder
+ ; thumbcaps
+ ; caps
+ )
+ (translate [0 0 -20] (cube 350 350 40))
+ ; (translate [0 0 -50] (cube 5 5 20))
+ )))
(spit "things/test.scad"
(write-scad (intersection (translate [29 -5 0] (cube 30 30 30))
- (difference (union case-walls hex-spacer-outers)
- hex-spacer-holes)
+ (difference (union case-walls screw-insert-outers)
+ screw-insert-holes)
)))
+
+; (spit "things/test.scad"
+; (write-scad screw-insert-holes))
+
+; (spit "things/test-half.scad"
+; (write-scad (difference
+; (union
+; key-holes
+; connectors
+; thumb
+; thumb-connectors
+; (difference (union case-walls screw-insert-outers)
+; ; rj9-space
+; usb-cutout
+; screw-insert-holes)
+; ; rj9-holder
+; ; (if (= nrows 4) teensy-holder)
+; )
+; (translate [0 0 -5] (cube 350 350 40))
+; ))) \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 13:51:16 +0000