Merge branch 'jeroenrnl-threaded_inserts'

libtest.scad

@@ -228,7 +228,8 @@ inserts_y = 0;
 nuts_y = inserts_y + 20;
 washers_y = nuts_y + 140;
 screws_y = washers_y + 120;
-circlips_y = screws_y + 180;
+threaded_inserts_y = screws_y + 180;
+circlips_y = threaded_inserts_y + 30;
 springs_y = circlips_y + 20;
 o_rings_y = springs_y;
 sealing_strip_y = springs_y + 20;
@@ -258,6 +259,9 @@ translate([x0, nuts_y])
 translate([x0, washers_y])
     washers();
 
+translate([x0, threaded_inserts_y])
+    threaded_inserts();
+
 translate([x0, screws_y])
     screws();
 

readme.md

@@ -1703,6 +1703,8 @@ Heatfit threaded inserts. Can be pushed into thermoplastics using a soldering ir
 | `insert_ring2_d(type)` | Diameter of the middle ring |
 | `insert_ring3_d(type)` | Diameter of the bottom ring |
 | `insert_screw_diameter(type)` | Screw size |
+| `threaded_insert_chamfer(type)` | Size of the chamfer for threaded inserts |
+| `threaded_insert_pitch(type)` | Pitch of the outer thread for threaded inserts |
 
 ### Functions
 | Function | Description |
@@ -1718,6 +1720,7 @@ Heatfit threaded inserts. Can be pushed into thermoplastics using a soldering ir
 | `insert_boss(type, z, wall = 2 * extrusion_width)` | Make a boss to take an insert |
 | `insert_hole(type, counterbore = 0, horizontal = false)` | Make a hole to take an insert, `counterbore` is the extra length for the screw |
 | `insert_lug(insert, wall, counter_bore = 0, extension = 0, corner_r = 0, flying = true)` | Make a flying insert lug, see [ssr_shroud](#Ssr_shroud) |
+| `threaded_insert(type)` | Draw specified threaded insert, for use in wood |
 
 ![inserts](tests/png/inserts.png)
 
@@ -1732,6 +1735,14 @@ Heatfit threaded inserts. Can be pushed into thermoplastics using a soldering ir
 |   1 | `insert(CNCKM4)` |  Heatfit insert M4 x 4mm |
 |   1 | `insert(F1BM4)` |  Heatfit insert M4 x 8.2mm |
 |   2 | `insert(CNCKM5)` |  Heatfit insert M5 x 5.8mm |
+|   1 | `threaded_insert(M10x25)` |  Threaded insert M10 x 25mm |
+|   1 | `threaded_insert(M12x30)` |  Threaded insert M12 x 30mm |
+|   1 | `threaded_insert(M16x30)` |  Threaded insert M16 x 30mm |
+|   1 | `threaded_insert(M3x8)` |  Threaded insert M3 x 8mm |
+|   1 | `threaded_insert(M4x10)` |  Threaded insert M4 x 10mm |
+|   1 | `threaded_insert(M5x12)` |  Threaded insert M5 x 12mm |
+|   1 | `threaded_insert(M6x15)` |  Threaded insert M6 x 15mm |
+|   1 | `threaded_insert(M8x18)` |  Threaded insert M8 x 18mm |
 
 
 <a href="#top">Top</a>

tests/inserts.scad

@@ -22,7 +22,6 @@ use <../utils/layout.scad>
 include <../vitamins/inserts.scad>
 
 module inserts() {
-
     for(i = [0: len(inserts) -1])
         translate([10 * i, 5])
             insert(inserts[i]);
@@ -32,7 +31,6 @@ module inserts() {
             insert(short_inserts[i]);
 
 
-
     stl_colour(pp1_colour)
         translate([len(inserts) * 10, 0]) {
             insert_lug(inserts[0], 2, 1);
@@ -42,6 +40,17 @@ module inserts() {
         }
 }
 
+module threaded_inserts()
+    for(i = [0: len(threaded_inserts) -1]) {
+        d = insert_hole_radius(threaded_inserts[i]);
+        translate([(10 + d) * i, 0])
+            threaded_insert(threaded_inserts[i]);
+    }
+
 if($preview)
-    let($show_threads = true)
+    let($show_threads = true) {
         inserts();
+
+        translate([0, 20])
+            threaded_inserts();
+    }

vitamins/insert.scad

@@ -32,6 +32,9 @@ function insert_barrel_d(type)       = type[5];     //! Diameter of the main bar
 function insert_ring1_h(type)        = type[6];     //! Height of the top and middle rings
 function insert_ring2_d(type)        = type[7];     //! Diameter of the middle ring
 function insert_ring3_d(type)        = type[8];     //! Diameter of the bottom ring
+function threaded_insert_pitch(type) = type[9];     //! Pitch of the outer thread for threaded inserts
+function threaded_insert_chamfer(type) = type[10];  //! Size of the chamfer for threaded inserts
+
 
 function insert_hole_length(type) = round_to_layer(insert_length(type)); //! Length of the insert rounded to layer height
 
@@ -46,6 +49,14 @@ function insert_nose_length(type, d) = let( //! The length before the second rin
 
 module insert(type) { //! Draw specified insert
     length = insert_length(type);
+
+    vitamin(str("insert(", type[0], "): Heatfit insert M", insert_screw_diameter(type), " x ", length, "mm"));
+
+    base_insert(type);
+}
+
+module base_insert(type) {
+    length = insert_length(type);
     ring1_h = insert_ring1_h(type);
 
     chamfer1 = (insert_ring2_d(type) - insert_barrel_d(type)) / 2;
@@ -53,7 +64,6 @@ module insert(type) { //! Draw specified insert
     ring2_h = ring1_h + chamfer1;
     gap = (length - ring1_h - ring2_h - chamfer2) / 3;
 
-    vitamin(str("insert(", type[0], "): Heatfit insert M", insert_screw_diameter(type), " x ", length, "mm"));
     $fn = 64;
     thread_d = insert_screw_diameter(type);
     explode(20, offset = [0, 0, -length]) translate_z(eps) vflip() {
@@ -186,3 +196,54 @@ module insert_lug(insert, wall, counter_bore = 0, extension = 0, corner_r = 0, f
             }
     }
 }
+
+
+module threaded_insert(type) { //! Draw specified threaded insert, for use in wood
+    d2 = insert_outer_d(type);
+    d3 = insert_barrel_d(type);
+    pitch = threaded_insert_pitch(type);
+
+    profile = thread_profile((d2 - d3) /2 , 0, 60);
+    socket = insert_screw_diameter(type) / cos(30) / 2;
+    length = insert_length(type);
+
+    r=insert_barrel_d(type) / 2;
+    z=threaded_insert_chamfer(type);
+
+    thread_l = insert_length(type) - z; // - insert_ring1_h(type);
+
+
+
+
+    vitamin(str("threaded_insert(", type[0], "): Threaded insert M", insert_screw_diameter(type), " x ", length, "mm"));
+    union() {
+        color(silver)
+            difference() {
+                base_insert(type);
+                translate_z(-socket/2 + 0.01)
+                    cylinder(r=socket, $fn = 6, h=socket/2);
+
+                // chamfer the end
+                rotate_extrude(convexity = 3)
+                    polygon([
+                        [r - z, -length],
+                        [r + 0.1, - length],
+                        [r + 0.1, - length + z + 0.1]
+                    ]);
+            }
+
+        translate_z(-thread_l/2)
+            thread(insert_barrel_d(type),
+                pitch,
+                thread_l,
+                profile,
+                center = true,
+                top = 1,
+                bot = -1,
+                starts = 1,
+                solid = false,
+                female = false,
+                colour = silver);
+    }
+
+}

vitamins/inserts.scad

@@ -39,8 +39,23 @@ CNCKM3 =  [ "CNCKM3",  3.0, 4.6, 4.0, 3,   3.65, 0.7, 4.4, 3.9 ];
 CNCKM4 =  [ "CNCKM4",  4.0, 6.3, 5.6, 4,   5.15, 1.0, 6.0, 5.55];
 CNCKM5 =  [ "CNCKM5",  5.8, 7.1, 6.4, 5,   6.0,  1.6, 6.8, 6.33];
 
+// Measurements according to DIN 7965
+//
+// If you want to add an additional length, it should be sufficient copy one with the same
+// M size and change the name (2x) and the first number column (l), all others are dependent
+// on the M size.
+//                        l,   d2,   d5,  d,   d3,   h,     d3,   d3, P1 (h),    z
+M3x8    = [  "M3x8",      8,    6,    5,  3,   4.5,  0.5,  4.5,  4.5,      2,  0.6];
+M4x10   = [  "M4x10",    10,    8,  6.5,  4,   5.5,  0.5,  5.5,  5.5,    2.5,  0.6];
+M5x12   = [  "M5x12",    12,   10,  8.5,  5,   7.5,  0.5,  7.5,  7.5,    3.5,  0.8];
+M6x15   = [  "M6x15",    15,   12, 10.5,  6,   9.5,  0.5,  9.5,  9.5,      4,    1];
+M8x18   = [  "M8x18",    18,   16, 14.5,  8,  12.5,  0.5, 12.5, 12.5,      5,    1];
+M10x25  = [ "M10x25",    25, 18.5,   17, 10,    15,  0.5,   15,   15,      5,  1.6];
+M12x30  = [ "M12x30",    30,   22,   20, 12,    18,  0.5,   18,   18,      5,  1.6];
+M16x30  = [ "M16x30",    30,   25, 22.5, 16,  20.5,  0.5, 20.5, 20.5,      5,  1.6];
 
 inserts =       [ F1BM2, F1BM2p5,  F1BM3,  F1BM4,  CNCKM5 ];
 short_inserts = [ F1BM2, CNCKM2p5, CNCKM3, CNCKM4, CNCKM5 ];
+threaded_inserts = [ M3x8, M4x10, M5x12, M6x15, M8x18, M10x25, M12x30, M16x30 ];
 
 use <insert.scad>