X-Git-Url: http://challenge-bot.com/repos/?p=challenge-bot;a=blobdiff_plain;f=motor-mount-drill-jig.scad;h=9e9673f6cb8fe7956c7dea6e5b054f3599bc444e;hp=198d218053662aef21e4d85acf4265343ddbd34f;hb=ac757602dfe7948c40c38a501386d13a93db7dd6;hpb=d2b2f016b0693f771b0e7f0c7cc885aa1f8ed552

diff --git a/motor-mount-drill-jig.scad b/motor-mount-drill-jig.scad
index 198d218..9e9673f 100644
--- a/motor-mount-drill-jig.scad
+++ b/motor-mount-drill-jig.scad
@@ -4,76 +4,81 @@
 // https://gitorious.org/ozzloy/challenge-bot
 // https://github.com/waynegramlich/challenge-bot
 
+// use this drill jig for putting holes in a motor mount for screws
+//  and motor shaft.  the four tabs at the bottom are for clamping
+//  the jig down.
+
 mm_per_inch = 25.4;
 
-material_width = (1/8) * mm_per_inch;
+material_width = (1 / 8) * mm_per_inch;
 
 board_length = 1.75 * mm_per_inch;
 board_width = 1.5 * mm_per_inch;
-board_depth = (3/16) * mm_per_inch;
+board_depth = (3 / 16) * mm_per_inch;
 tab_length = 3 * mm_per_inch;
-tab_width = (1/4) * mm_per_inch;
+tab_width = (1 / 4) * mm_per_inch;
 
 union(){
   rotate(a = 90, v = [1, 0, 0]) {
     cube([board_length + material_width,
           1.75 * mm_per_inch + material_width,
-          material_width ]);}
+          material_width]);}
 
   translate(v = [0, -material_width, 0]){
     rotate(a = -90, v = [0, 1, 0]) {
       cube( [1.75 * mm_per_inch + material_width,
              1.5 * mm_per_inch + 2 * material_width,
-             material_width ]);}}
+             material_width]);}}
 
-  translate(v = [(1.75*mm_per_inch + material_width)/2 + tab_width,
-                 -tab_length, 0]){
+  translate(v = [(1.75 * mm_per_inch + material_width) / 2 + tab_width,
+                 -tab_length,
+                 0]){
     rotate(a = 90, v = [0 ,0 ,1 ]){
-      cube([3*mm_per_inch, 0.5*mm_per_inch , material_width]);}}
+      cube([3 * mm_per_inch, 0.5 * mm_per_inch , material_width]);}}
 
   translate(v = [-tab_length,
-                 (1.5*mm_per_inch + material_width)/2 - tab_width,
+                 (1.5 * mm_per_inch + material_width) / 2 - tab_width,
                  0]){
-    cube([3*mm_per_inch, 0.5*mm_per_inch , material_width]);}
+    cube([3 * mm_per_inch, 0.5 * mm_per_inch , material_width]);}
 
-  translate(v = [(1.75*mm_per_inch + material_width)/2 + tab_width,
-                 (1.5*mm_per_inch),
+  translate(v = [(1.75 * mm_per_inch + material_width) / 2 + tab_width,
+                 (1.5 * mm_per_inch),
                  0]){
     rotate(a = 90, v = [0, 0, 1]){
-      cube([3*mm_per_inch, 0.5*mm_per_inch , material_width]);}}
+      cube([3 * mm_per_inch, 0.5 * mm_per_inch , material_width]);}}
 
-  translate(v = [(1.75*mm_per_inch),
-                 (1.5*mm_per_inch+material_width)/2 - tab_width,
+  translate(v = [(1.75 * mm_per_inch),
+                 (1.5 * mm_per_inch + material_width) / 2 - tab_width,
                  0]){
-    cube([3*mm_per_inch, 0.5*mm_per_inch , material_width]);}}
+    cube([3 * mm_per_inch, 0.5 * mm_per_inch , material_width]);}}
 
-_4_40 = 0.1285*mm_per_inch/2; // size of hole for 4x40
-_6_32 = 0.1495*mm_per_inch/2; // size of hole for 6x32
+_4_40 = 0.1285 * mm_per_inch / 2; // size of hole for 4x40
+_6_32 = 0.1495 * mm_per_inch / 2; // size of hole for 6x32
 
 module collar_hole(){
-  cylinder(h = board_depth, r = 2*_6_32, $fn=20);}
+  cylinder(h = board_depth, r = 2 * _6_32, $fn = 20);}
 
 module nubbin_hole(){
-  cylinder(h = board_depth, r = _6_32, $fn=20);}
+  cylinder(h = board_depth, r = _6_32, $fn = 20);}
 
 module mounting_screw_hole(){
-  cylinder(h = board_depth, r = _6_32, $fn=20);}
+  cylinder(h = board_depth, r = _6_32, $fn = 20);}
 
 module bracket_screw_hole(){
-  cylinder(h = board_depth, r = _6_32, $fn=20);}
+  cylinder(h = board_depth, r = _6_32, $fn = 20);}
 
 module wheel_motor_holes(scale){
-  translate([ 51-26.78,38-10.8, 0] * scale) {
+  translate([51 - 26.78, 38 - 10.8, 0] * scale) {
     collar_hole();}
-  translate([ 51-26.78,38-22.23, 0] * scale){
+  translate([51 - 26.78, 38 - 22.23, 0] * scale){
     nubbin_hole();}
-  translate([51-18.05-17.45,38-30.81,  0] * scale){
+  translate([51 - 18.05 - 17.45, 38 - 30.81,  0] * scale){
     mounting_screw_hole();}
-  translate([51-18.05,38-30.81, 0] * scale){
+  translate([51 - 18.05, 38 - 30.81, 0] * scale){
     mounting_screw_hole();}
-  translate([7.5,8.5, 0] * scale){
+  translate([7.5, 8.5, 0] * scale){
     bracket_screw_hole();}
-  translate([7.5,21+8.5,   0] * scale){
+  translate([7.5, 21 + 8.5,   0] * scale){
     bracket_screw_hole();}}
 
 module wheel_mount(scale){