Laptop key caps

src/features/legends.scad

@@ -2,8 +2,9 @@ module keytext(text, position, font_size, font_face, depth) {
   woffset = (top_total_key_width()/3.5) * position[0];
   hoffset = (top_total_key_height()/3.5) * -position[1];
   translate([woffset, hoffset, -depth]){
-    color($tertiary_color) linear_extrude(height=$dish_depth + depth){
-      text(text=text, font=font_face, size=font_size, halign="center", valign="center");
+    height = $dish_depth + depth + ($rounded_key ? $minkowski_radius : 0);
+    color($tertiary_color) linear_extrude(height=height){
+      text(text=text, font=font_face, size=font_size, halign=$label_valign, valign=$label_halign);
     }
   }
 }

src/key.scad

@@ -213,7 +213,7 @@ module inside_features() {
 module stems_and_stabilizers() {
   translate([0, 0, $stem_inset]) {
     if ($stabilizer_type != "disable") stems_for($stabilizers, $stabilizer_type);
-    if ($stem_type != "disable") stems_for($stem_positions, $stem_type);
+    if ($stem_type != "disable" && $stem_type != "scissors_clip") stems_for($stem_positions, $stem_type);
   }
 }
 
@@ -235,20 +235,23 @@ module outer_total_shape(inset=false) {
 // The final, penultimate key generation function.
 // takes all the bits and glues them together. requires configuration with special variables.
 module key(inset=false) {
-  difference(){
-    outer_total_shape(inset) {
-      children();
-    };
+  union() {
+    difference() {
+      outer_total_shape(inset) {
+        children();
+      };
 
-    if ($inner_shape_type != "disable") {
-      translate([0,0,-SMALLEST_POSSIBLE]) { // avoids moire
-        inner_total_shape();
+      if ($inner_shape_type != "disable") {
+        translate([0,0,-SMALLEST_POSSIBLE]) { // avoids moire
+          inner_total_shape();
+        }
       }
-    }
 
-    subtractive_features(inset) {
-      children();
-    };
+      subtractive_features(inset) {
+        children();
+      };
+    }
+    if ($stem_type == "scissors_clip") stems_for($stem_positions, $stem_type);
   }
 
   // semi-hack to make sure negative inset stems don't poke through the top of the keycap

src/settings.scad

@@ -4,7 +4,7 @@
 $key_length = 1.0; // Range not working in thingiverse customizer atm [1:0.25:16]
 
 // What type of stem you want. Most people want Cherry.
-$stem_type = "cherry";  // [cherry, alps, rounded_cherry, box_cherry, filled, disable]
+$stem_type = "cherry";  // [cherry, alps, rounded_cherry, box_cherry, filled, scissors_clip, disable]
 
 // The stem is the hardest part to print, so this variable controls how much 'slop' there is in the stem
 // if your keycaps stick in the switch raise this value
@@ -84,7 +84,7 @@ $keycap_rotation = 0;
 /* [Shape] */
 
 // Key shape type, determines the shape of the key. default is 'rounded square'
-$key_shape_type = "rounded_square";
+$key_shape_type = "rounded_square"; // [rounded_square, iso_enter, sculpted_square, flat_sided_square, square, oblong, hexagon, octagon, circular, rounded_bottom_square, rounded_bottom_rouned_square]
 // ISO enter needs to be linear extruded NOT from the center when not using skin. this tells the program how far up 'not from the center' is
 $linear_extrude_height_adjustment = 0;
 // How many slices will be made, to approximate curves on corners. Leave at 1 if you are not curving corners
@@ -248,4 +248,40 @@ $corner_smoothing_surface_function = function(x,y) 1;
 /* $
 // y=x revolved around the y axis
 /* $surface_function =  */
-/* $surface_function =  */
+/* $surface_function =  */
+
+/* [Label alignment] */
+
+// label text vertical alignment
+$label_valign = "center";
+// label text horizontal allignment
+$label_halign = "center";
+
+/* [Bottom radius shape] */
+
+// bottom arc height for rounded_bottom_rouned_square and rounded_bottom_square $key_shape
+$bottom_radius_heght = 1;
+// disables rounding at right of the button
+$rounded_square_sharp_right = false;
+
+/* [Scissors clip] */
+
+$clip_width = 0.8;
+$clip_height = 2.1;
+$clip_depth = 1.4;
+// distance between center of clips
+$clip_horizontal_distance = 7;
+$clip_hole_diameter = 0.9;
+$clip_hole_click_diameter = 0.6;
+
+// distance between clips and pockets center
+$clip_to_pocket = 11;
+
+// inner distance between clip pockets
+$clip_pocket_inner_distance = 11.5;
+$clip_pocket_width = 1.7;
+$clip_pocket_height= 2;
+$clip_pocket_depth = 1.7;
+
+// Offset of the clip
+$clip_offset = [0,0,0];

src/shapes.scad

@@ -5,6 +5,7 @@ include <shapes/rounded_square.scad>
 include <shapes/square.scad>
 include <shapes/oblong.scad>
 include <shapes/regular_polygon.scad>
+include <shapes/rounded_bottom.scad>
 
 // size: at progress 0, the shape is supposed to be this size
 // delta: at progress 1, the keycap is supposed to be size - delta
@@ -30,6 +31,10 @@ module key_shape(size, delta, progress = 0) {
     regular_polygon_shape(size, delta, progress, sides=8);
   } else if ($key_shape_type == "circular") {
     regular_polygon_shape(size, delta, progress, sides=36);
+  } else if ($key_shape_type == "rounded_bottom_square"){
+    rounded_bottom_square_shape(size, delta, progress);
+  } else if ($key_shape_type == "rounded_bottom_rouned_square"){
+    rounded_bottom_rouned_square_shape(size, delta, progress);
   } else {
     echo("Warning: unsupported $key_shape_type");
   }

src/shapes/rounded_bottom.scad

@@ -0,0 +1,22 @@
+use <../functions.scad>
+
+module rounded_bottom_square_shape_by_radius(section_size, bottom_radius) {
+  intersection() {
+    square(section_size, center = true);
+    translate(v = [0, -section_size.y/2+ bottom_radius])  circle(r = bottom_radius, $fn=120);
+  }
+}
+
+module rounded_bottom_square_shape(size, delta, progress) {
+  section_size = size-delta * progress;
+  bottom_radius = $bottom_radius_heght/2 + section_size[1]^2/8/$bottom_radius_heght;
+  rounded_bottom_square_shape_by_radius(section_size, bottom_radius);
+}
+
+module rounded_bottom_rouned_square_shape(size, delta, progress) {
+  offset(r=$corner_radius, $fa=360/$shape_facets) {
+    section_size = size-delta * progress - [1,1]*$corner_radius*2;
+    bottom_radius = $bottom_radius_heght/2 + section_size.y^2/8/$bottom_radius_heght;
+    rounded_bottom_square_shape_by_radius(section_size, bottom_radius);
+  }
+}

src/shapes/rounded_square.scad

@@ -5,6 +5,9 @@ module rounded_square_shape(size, delta, progress, center = true) {
   offset(r=$corner_radius, $fa=360/$shape_facets){
     square_shape([size.x - $corner_radius*2, size.y - $corner_radius*2], delta, progress);
   }
+  if($rounded_square_sharp_right) {
+    translate(v = [size.x/4, 0]) square_shape([size.x/2, size.y], delta, progress);
+  }
 }
 
 // for skin

src/stems.scad

@@ -5,6 +5,7 @@ include <stems/alps.scad>
 include <stems/filled.scad>
 include <stems/cherry_stabilizer.scad>
 include <stems/choc.scad>
+include <stems/scissors_clip.scad>
 
 
 //whole stem, alps or cherry, trimmed to fit
@@ -25,6 +26,8 @@ module stem(stem_type, depth, slop, throw){
       choc_stem(depth, slop, throw);
     } else if (stem_type == "disable") {
       children();
+    } else if(stem_type == "scissors_clip") {
+      scissors_clip_steam();
     } else {
       echo("Warning: unsupported $stem_type: ");
       echo(stem_type);

src/stems/scissors_clip.scad

@@ -0,0 +1,34 @@
+module scissors_clip_steam() {
+    translate(v = [0, ($bottom_key_height-$clip_height-0.7)/2, $total_depth-$keytop_thickness-$dish_depth]+$clip_offset) {
+        translate(v = [0, 0, -$clip_depth/2]) {
+            translate(v = [$clip_horizontal_distance/2, 0]) scissors_clip();
+            translate(v = [-$clip_horizontal_distance/2, 0]) scissors_clip();
+        }
+
+        translate(v = [0, -$clip_to_pocket, -$clip_pocket_depth/2]) {
+           translate(v = [$clip_pocket_inner_distance/2+$clip_pocket_width/2,0,0])  scissors_clip_pocket();
+           translate(v = [-$clip_pocket_inner_distance/2-$clip_pocket_width/2,0,0]) mirror(v = [1,0,0])  scissors_clip_pocket();
+        }
+    }
+}
+
+module scissors_clip() {
+    eps = 0.1;
+    rotate(a = [0,90,0]) 
+    linear_extrude(height=$clip_width, center=true) 
+    difference() { 
+        translate(v = [-eps/2, 0]) square(size = [$clip_depth+eps, $clip_height], center=true);
+        translate(v = [($clip_hole_diameter-$clip_depth)/2+0.1, 0]) circle(r = $clip_hole_diameter/2);
+        //translate(v = [$clip_depth/2, 0]) circle(r = $clip_hole_diameter/2);
+        square(size = [$clip_depth, $clip_hole_click_diameter],  center=true);
+    }
+}
+
+module scissors_clip_pocket() {
+    size = [$clip_pocket_width, $clip_pocket_height, $clip_pocket_depth];
+    difference() {
+        cube(size = size, center=true);
+        translate([-0.5, -0.5, 0.6]) cube(size = size, center=true);
+        translate(-size/2) rotate(a = 45, v = [0,0,1]) cube(size=[1,1,1]*1.5, center=true);
+    }
+}