Updated images and readme.

libtest.scad

@@ -151,13 +151,13 @@ translate([890, 730])
     printed_boxes();
 
 
-translate([850, 1260])
+translate([850, 1300])
     bbox_test();
 
 
 inserts_y = 0;
 nuts_y = inserts_y + 20;
-washers_y = nuts_y + 100;
+washers_y = nuts_y + 120;
 screws_y = washers_y + 120;
 o_rings_y = screws_y + 130;
 springs_y = o_rings_y + 20;

readme.md

@@ -1689,6 +1689,9 @@ If a nut is given a child then it gets placed on its top surface.
 |:--- |:--- |
 | ```nut_radius(type)``` | Radius across the corners |
 | ```nut_size(type)``` | Diameter of the corresponding screw |
+| ```nut_square_size(type)``` | Diameter of the corresponding screw |
+| ```nut_square_thickness(type)``` | Thickness of the square nut |
+| ```nut_square_width(type)``` | Width of the square nut |
 | ```nut_trap_depth(type)``` | Depth of nut trap |
 | ```nut_washer(type)``` | Corresponding washer |
 
@@ -1705,6 +1708,7 @@ If a nut is given a child then it gets placed on its top surface.
 |:--- |:--- |
 | ```nut(type, nyloc = false, brass = false, nylon = false)``` | Draw specified nut |
 | ```nut_and_washer(type, nyloc)``` | Draw nut with corresponding washer |
+| ```nut_square(type, brass = false, nylon = false)``` | Draw specified square nut |
 | ```nut_trap(screw, nut, depth = 0, horizontal = false, supported = false, h = 200)``` | Make a nut trap |
 | ```wingnut(type)``` | Draw a wingnut |
 
@@ -1723,18 +1727,23 @@ If a nut is given a child then it gets placed on its top surface.
 |   1 | ```nut(M3_nut)``` |  Nut M3 x 2.4mm  |
 |   1 | ```nut(M3_nut, brass = true)``` |  Nut M3 x 2.4mm brass |
 |   1 | ```nut(M3_nut, nyloc = true)``` |  Nut M3 x 2.4mm nyloc |
+|   1 | ```nut(M3nS_thin_nut)``` |  Nut M3nS 5.5 x 1.8mm  |
 |   1 | ```sliding_t_nut(M4_hammer_nut)``` |  Nut M4 hammer |
 |   1 | ```sliding_t_nut(M4_sliding_t_nut)``` |  Nut M4 sliding T |
 |   1 | ```nut(M4_nut)``` |  Nut M4 x 3.2mm  |
 |   1 | ```nut(M4_nut, nyloc = true)``` |  Nut M4 x 3.2mm nyloc |
+|   1 | ```nut(M4nS_thin_nut)``` |  Nut M4nS 7 x 2.2mm  |
 |   1 | ```sliding_t_nut(M5_sliding_t_nut)``` |  Nut M5 sliding T |
 |   1 | ```nut(M5_nut)``` |  Nut M5 x 4mm  |
 |   1 | ```nut(M5_nut, nyloc = true)``` |  Nut M5 x 4mm nyloc |
+|   1 | ```nut(M5nS_thin_nut)``` |  Nut M5nS 8 x 2.7mm  |
 |   1 | ```nut(M6_half_nut)``` |  Nut M6 x 3mm  |
 |   1 | ```nut(M6_nut)``` |  Nut M6 x 5mm  |
 |   1 | ```nut(M6_nut, nyloc = true)``` |  Nut M6 x 5mm nyloc |
+|   1 | ```nut(M6nS_thin_nut)``` |  Nut M6nS 10 x 3.2mm  |
 |   1 | ```nut(M8_nut)``` |  Nut M8 x 6.5mm  |
 |   1 | ```nut(M8_nut, nyloc = true)``` |  Nut M8 x 6.5mm nyloc |
+|   1 | ```nut(M8nS_thin_nut)``` |  Nut M8nS 13 x 4mm  |
 |   1 | ```washer(M6_washer)``` |  Washer  M6 x 12.5mm x 1.5mm |
 |   1 | ```wingnut(M4_wingnut)``` |  Wingnut M4 |
 

tests/nuts.scad

@@ -61,6 +61,19 @@ module nuts() {
             if(n == M4_nut)
                 sliding_t_nut(M4_hammer_nut);
        }
+
+       translate([0, 100]) {
+            if(n == M3_nut)
+               nut_square(M3nS_thin_nut);
+            if(n == M4_nut)
+               nut_square(M4nS_thin_nut);
+            if(n == M5_nut)
+               nut_square(M5nS_thin_nut);
+            if(n == M6_nut)
+               nut_square(M6nS_thin_nut);
+            if(n == M8_nut)
+               nut_square(M8nS_thin_nut);
+       }
     }
 }
 

vitamins/nut.scad

@@ -39,6 +39,10 @@ function nut_trap_depth(type) = type[6];        //! Depth of nut trap
 
 function nut_flat_radius(type) = nut_radius(type) * cos(30); //! Radius across the flats
 
+function nut_square_size(type)      = type[1]; //! Diameter of the corresponding screw
+function nut_square_width(type)     = type[2]; //! Width of the square nut
+function nut_square_thickness(type) = type[3]; //! Thickness of the square nut
+
 module nut(type, nyloc = false, brass = false, nylon = false) { //! Draw specified nut
     thread_d = nut_size(type);
     hole_rad  = thread_d / 2;
@@ -189,6 +193,31 @@ module extrusionSlidingNut(size, tabSizeY1, tabSizeY2, tabSizeZ, holeRadius, hol
             }
 }
 
+module nut_square(type, brass = false, nylon = false) { //! Draw specified square nut
+    thread_d = nut_size(type);
+    hole_rad  = thread_d / 2;
+    width = nut_square_width(type);
+    thickness = nut_square_thickness(type);
+    desc = brass ? "brass" : nylon ? "nylon" : "";
+    vitamin(str("nut(", type[0], arg(brass, false, "brass"), arg(nylon, false, "nylon"),
+                   "): Nut M", nut_size(type), "nS ", width, " x ", thickness, "mm ", desc));
+
+    colour = brass ? brass_colour : nylon ? grey30 : grey70;
+    color(colour)
+        difference() {
+            linear_extrude(height = thickness) {
+                difference() {
+                    square([width, width], center = true);
+
+                    circle(hole_rad);
+                }
+            }
+
+        }
+    if(show_threads)
+        female_metric_thread(thread_d, metric_coarse_pitch(thread_d), thickness, center = false, colour = colour);
+}
+
 function nut_trap_radius(nut, horizontal = false) = nut_radius(nut) + (horizontal ? layer_height / 4 : 0); //! Radius across the corners of a nut trap
 function nut_trap_flat_radius(nut, horizontal = false) = nut_trap_radius(nut, horizontal) * cos(30);       //! Radius across the flats of a nut trap
 

vitamins/nuts.scad

@@ -51,6 +51,20 @@ toggle_nut  =      ["toggle_nut",       6.1, 9.2, 1.5, 1.5,  M6_washer,     1.5]
 
 M4_wingnut  =      ["M4_wingnut",       4,  10,   3.75,8,    M4_washer,     0, 22, 10, 6, 3];
 
+// DIN 562 (thin) square nuts
+//                                                s    w    h
+//                                                c    i    e
+//                                                r    d    i
+//                                                e    t    g
+//                                                w    h    h
+//                                                          t
+//
+M3nS_thin_nut    =      ["M3nS_thin_nut",         3, 5.5, 1.8];
+M4nS_thin_nut    =      ["M4nS_thin_nut",         4,   7, 2.2];
+M5nS_thin_nut    =      ["M5nS_thin_nut",         5,   8, 2.7];
+M6nS_thin_nut    =      ["M6nS_thin_nut",         6,  10, 3.2];
+M8nS_thin_nut    =      ["M8nS_thin_nut",         8,  13,   4];
+
 //                                                                              sx  ty1 ty2 hammer
 M3_sliding_t_nut = ["M3_sliding_t_nut", 3,   6,   3.0, 4.0,  false,         0,  10,  10,  6, false];
 M4_sliding_t_nut = ["M4_sliding_t_nut", 4,   6,   3.25,4.5,  false,         0,  11,  10,  6, false];