Replaced platform locking with screws

src/platform.scad

@@ -1,6 +1,6 @@
 include <export.scad>
 //export=MODEL_PLATFORM_HARNESS;
-export=MODEL_PLATFORM_STRAP;
+//export=MODEL_PLATFORM_STRAP;
 
 // dependency: https://github.com/revarbat/BOSL
 include <BOSL/constants.scad>
@@ -36,73 +36,6 @@ module model_prop_arm() {
 // <<<
 
 // Blocks:
-module lock_pin(groove) {
-    slack=groove
-        ?[1, 0.5, 0.3]
-        :[0, 0, 0];
-    pin_size=get_platform_lock_pin_size();
-    size=vec_sum(pin_size, slack);
-    down(size.z/2)
-    translate([slack.x/2, slack.y/2, slack.z/2])
-    xrot(-4) zrot(-90) right_triangle([size.y, size.x, size.z]);
-}
-module lock_arm() {
-    size=get_platform_lock_arm_size();
-    down(get_platform_top_size().z) back(size.y/2) right(size.x/2) cube(size, center=true);
-    joiner_size=[get_platform_lock_pin_size().x, size.y, get_platform_top_size().z];
-    translate([joiner_size.x/2, joiner_size.y/2, -joiner_size.z/2 + size.z/2]) cube(joiner_size, center=true);
-}
-module lock_mechanism_button(groove=false) {
-    button_size=get_platform_lock_button_profile(groove);
-    size=get_platform_lock_button_size(groove);
-    translate(get_platform_lock_button_pos())
-    left(groove?1:0)
-    difference() {
-        cube(size, center=true);
-        up(size.z/2 + (groove?0.5:0)) back(3) cube(size, center=true);
-    }
-}
-module lock_buttons_cutout() {
-    module cutout_side(groove) {
-        translate(get_platform_lock_pin_pos()) lock_mechanism_button(groove=true);
-    }
-    cutout_side();
-    scale([1, -1, 1]) cutout_side();
-}
-module lock_mechanism() {
-    lock_pin(groove=false);
-    lock_arm();
-    lock_mechanism_button();
-}
-module lock_socket() {
-    pin_size=get_platform_lock_pin_size();
-    size=[pin_size.x, pin_size.y, pin_size.z];
-    module socket_connector() {
-        conn_size=[pin_size.x+4, get_platform_wall()*3, get_platform_top_size().z];
-        up(pin_size.z/2) fwd(pin_size.y+conn_size.y/2) right(pin_size.x/2) {
-            prismoid(size1=[conn_size.x, conn_size.y], size2=[conn_size.x, conn_size.y-2], shift=[0, -1], h=conn_size.z/2);
-            down(conn_size.z/4) cube([conn_size.x, conn_size.y, conn_size.z/2], center=true);
-        }
-    }
-    down(pin_size.z)
-    translate(get_platform_lock_pin_pos()) {
-        fwd(pin_size.y) scale([1, -1, -1]) lock_pin();
-        socket_connector();
-    }
-}
-module platform_locks_pins() {
-    platform_size=get_platform_size();
-    lock_pin_size=get_platform_lock_pin_size();
-    module lock_side(groove) {
-        translate(get_platform_lock_pin_pos()) lock_mechanism();
-    }
-    lock_side();
-    scale([1, -1, 1]) lock_side();
-}
-module platform_locks_sockets() {
-    lock_socket();
-    scale([1, -1, 1]) lock_socket();
-}
 module platform(base) {
     size=get_platform_size();
     base_size=size;
@@ -110,11 +43,29 @@ module platform(base) {
     top_size=get_platform_top_size();
     top=!base;
     
+    module platform_screwholes() {
+        module screwhole_one() {
+            fwd(base_size.y/2) xrot(90) down(get_platform_screwhole_h()) screwhole(d=get_platform_screwhole_d(), h=get_platform_screwhole_h());
+        }
+        module screwhole_sided() {
+            offset=16;
+            left(offset) screwhole_one();
+            right(offset) screwhole_one();
+        }
+        up(top_size.z/5) {
+            screwhole_sided();
+            scale([1,-1,1]) screwhole_sided();
+        }
+    }
     module base_platform_cutout_for_top() {
         base_top_diff=[base_size.x-top_size.x, base_size.y-top_size.y];
-        guiding=0.4;
-        translate(get_platform_top_pos()) down(top_size.z/2) prismoid(size1=[top_size.x,top_size.y], size2=[top_size.x+base_top_diff.x*guiding,top_size.y+base_top_diff.y*guiding], h=top_size.z);
-            lock_buttons_cutout();
+        guiding=1;
+        top_slack=[0.2, 0.2, 0];
+        translate(get_platform_top_pos()) {
+            cube(vec_sum(top_size, top_slack), center=true);
+            down(top_size.z/2 - 2)
+            prismoid(size1=[top_size.x,top_size.y], size2=[top_size.x+base_top_diff.x*guiding,top_size.y+base_top_diff.y*guiding], h=top_size.z);
+        }
     }
     module base_platform() {
         module base_platform_core() {
@@ -124,11 +75,18 @@ module platform(base) {
         difference() {
             base_platform_core();
             base_platform_cutout_for_top();
+            platform_screwholes();
         }
     }
     module top_platform() {
-        up((base_size.z-top_size.z)/2)
-        braced_thinning_wall(h=top_size.y, l=top_size.x, thick=top_size.z, wall=0, strut=wall/4, orient=ORIENT_X_90);
+        difference() {
+            up((base_size.z-top_size.z)/2)       
+            up(top_size.z/2) intersection() {
+                scale([1,1,4]) braced_thinning_wall(h=top_size.y, l=top_size.x, thick=top_size.z, wall=0, strut=wall/4, orient=ORIENT_X_90);
+                down(top_size.z/2) scale([2,2,1]) cube(top_size, center=true);
+            }
+            platform_screwholes();
+        }
     }
         
     module strap_connectors() {
@@ -144,11 +102,9 @@ module platform(base) {
     color(top?"Olive":"YellowGreen")
     if (base) {
         base_platform();
-        platform_locks_pins();
         strap_connectors();
     } else {
         top_platform();
-        platform_locks_sockets();
     }
 }
 

src/specs_platform.scad

@@ -17,19 +17,6 @@ function get_platform_strap_connector_offset() = [
     get_platform_size().y/2 + 4,
     -get_link_segment_size().z/2 + 0.5
     ];
-
-function get_platform_lock_pin_size() = [20, 4, 3];
-function get_platform_lock_arm_size() = [46, 2, 3];
-function get_platform_lock_pin_pos() = [-get_platform_lock_pin_size().x/2, -get_platform_top_size().y/2 + get_platform_wall()*4 + 1, get_platform_top_size().z/2];
-function get_platform_lock_button_profile(groove) = groove ? [10, 5] : [7, 4.5];
-function get_platform_lock_button_size(groove) = [
-    get_platform_lock_button_profile(groove).x,
-    get_platform_size().y * 0.25 + get_platform_lock_pin_size().y + 2,
-    get_platform_lock_button_profile(groove).y
-    ];
-function get_platform_lock_button_pos() = [
-    get_platform_lock_pin_size().x/2 + 5,
-    -get_platform_lock_button_size(false).y/2,
-    -get_platform_size().z/2
-    ];
+function get_platform_screwhole_d() = 3.2;
+function get_platform_screwhole_h() = 10;
 

src/strap.scad

@@ -1,12 +1,15 @@
-links_count=3; // [1..20]
+links_count=2; // [1..20]
 include_terminal=true; // [true,false]
 include_screwhole=true; // [true,false]
 clip_screwhole=2;
 
-//export=302;//MODEL_CLIP_A;
-//export=303;//MODEL_CLIP_B;
-
 include <export.scad>
+//export=MODEL_LINKS;
+//export=MODEL_CLIP_A;
+//export=MODEL_CLIP_B;
+//export=MODEL_CLIP_RATCHETING_A;
+//export=MODEL_CLIP_RATCHETING_B;
+
 use <BOSL/transforms.scad>
 use <BOSL/shapes.scad>
 include <BOSL/constants.scad>