Patch for github.com:abstracthat/dactyl-manuform to let it generate 8 columns. The fixed-angles, fixed-x and fixed-z should have at least that many items as the number of columns.

4x8.patch

diff --git i/src/dactyl_keyboard/dactyl.clj w/src/dactyl_keyboard/dactyl.clj
index f082903..097ae50 100644
--- i/src/dactyl_keyboard/dactyl.clj
+++ w/src/dactyl_keyboard/dactyl.clj
@@ -14,13 +14,13 @@
 ;;;;;;;;;;;;;;;;;;;;;;
 
 (def nrows 4)
-(def ncols 5)
+(def ncols 8)
 
 (def α (/ π 12))                        ; curvature of the columns
 (def β (/ π 36))                        ; curvature of the rows
 (def centerrow (- nrows 3))             ; controls front-back tilt
 (def centercol 4)                       ; controls left-right tilt / tenting (higher number is more tenting)
-(def tenting-angle (/ π 4))            ; or, change this for more precise tenting control
+(def tenting-angle (/ π 12))            ; or, change this for more precise tenting control
 (def column-style
   (if (> nrows 5) :orthographic :standard))  ; options include :standard, :orthographic, and :fixed
 ; (def column-style :fixed)
@@ -46,10 +46,10 @@
 ;;   http://patentimages.storage.googleapis.com/EP0219944A2/imgf0002.png
 ;; Fixed-z overrides the z portion of the column ofsets above.
 ;; NOTE: THIS DOESN'T WORK QUITE LIKE I'D HOPED.
-; (def fixed-angles [(deg2rad 10) (deg2rad 10) 0 0 0 (deg2rad -15) (deg2rad -15)])
-; (def fixed-x [-41.5 -22.5 0 20.3 41.4 65.5 89.6])  ; relative to the middle finger
-; (def fixed-z [12.1    8.3 0  5   10.7 14.5 17.5])
-; (def fixed-tenting (deg2rad 0))
+(def fixed-angles [(deg2rad 10) (deg2rad 10) 0 0 0 (deg2rad -15) (deg2rad -15) 0 0])
+(def fixed-x [-41.5 -22.5 0 20.3 41.4 65.5 89.6 100 120])  ; relative to the middle finger
+(def fixed-z [12.1    8.3 0  5   10.7 14.5 17.5 18 19])
+(def fixed-tenting (deg2rad 0))
 
 ;;;;;;;;;;;;;;;;;;;;;;;
 ;; General variables ;;
@@ -582,7 +582,6 @@