Little parametrize of hotend mount

X Carriage/e3d v6.scad

@@ -1,51 +1,57 @@
 include <../lib/common.scad>;
 
 $fn = 100;
+width = 35;
+depth = 30;
 
-part = "cover";
+e3d_width = 22;
+
+part = "mount";
 
 difference() {
+    distance = width / 2;
+
     // part
     if (part == "mount") {
         translate([0, 0, 0])
-            cube([30, 15, 42.5]);
+            cube([width, 15, 42.5]);
     } else if (part == "cover") {
         translate([0, 15, 0])
-            cube([30, 15, 42.5]);
+            cube([width, 15, 42.5]);
-        translate([26, 27, - 6])
-            cube([6, 3, 6]);
 
-        translate([20.2146, 27, 0.895])
+        // mount for part cooling fan shroud
+        translate([distance + 11, 27, - 6])
+            cube([6, 3, 6]);
+        translate([distance + 5 + 0.2146, 27, 0.895])
             rotate([0, 50, 0])
                 cube([9, 3, 6]);
     }
 
     // space for fan mount
-    translate([40, 0, 0])
+    translate([width + 10, 0, 0])
         rotate([0, - 90, 0])
             fan_mount();
 
     // space for extruder
-    translate([4, 4, 0])
+    translate([(width - e3d_width) / 2, 4, 0])
-        translate([11, 11, 0])
         e3d_v6();
 
     screw_mounts();
 
-
     // hole for part cooling fan
-    translate([20, 30, 37])
+    translate([distance + 5, depth, 37])
         rotate([90, 0, 0])
             translate([1.5, 1.5, 0])
                 cylinder(d = 3, h = 5);
 
-    translate([27.5, 30, - 4.5])
+    translate([distance + 12.5, depth, - 4.5])
         rotate([90, 0, 0])
             translate([1.5, 1.5, 0])
                 cylinder(d = 4, h = 5);
 }
 
 module e3d_v6() {
+    translate([11, 11, 0]) {
         h0 = - 14;
         rotate([0, 0, 180])
             translate([- 8, - 3.5, h0])
@@ -75,52 +81,75 @@ module e3d_v6() {
         translate([0, 0, h6])
             cylinder(d = 11.5, h = 6.5, $fn = 6);
     }
+}
 
 module fan_mount() {
-    cube([30, 30, 10]);
+    fan_size = 30;
+    fan_thickness = 10;
+
+    cube([fan_size, fan_size, fan_thickness]);
 
     // screw holes
-    translate([1.5 + 1.5, 1.5 + 1.5, 10])
+    translate([1.5 + 1.5, 1.5 + 1.5, fan_thickness])
         cylinder(d = 3, h = 10);
 
-    translate([30 - (1.5 + 1.5), 1.5 + 1.5, 10])
+    translate([fan_size - (1.5 + 1.5), 1.5 + 1.5, fan_thickness])
         cylinder(d = 3, h = 10);
 
-    translate([1.5 + 1.5, 30 - (1.5 + 1.5), 10])
+    translate([1.5 + 1.5, fan_size - (1.5 + 1.5), fan_thickness])
         cylinder(d = 3, h = 10);
 
     // fan duct
     translate([1, 1, 0])
-        translate([14, 14, 0])
+        translate([(fan_size / 2) - 1, (fan_size / 2) - 1, 0])
-            cylinder(d1 = 28, d2 = 22, h = 25);
+            cylinder(d1 = fan_size - 2, d2 = 22, h = width / 2 + fan_thickness);
 
     translate([1, 1, 0])
-        translate([14, 14, 20])
+        translate([(fan_size / 2) - 1, (fan_size / 2) - 1, width / 2 + fan_thickness])
-            cylinder(d = 22, h = 25);
+            cylinder(d = 22, h = width / 2 + 0.1);
 }
 
 module screw_mounts() {
+    screw_cover_mounts();
+    screw_x_carriage_mount();
+}
+
+module screw_cover_mounts() {
+    screw_distance = 24;
+    screw_size = 3;
+
+    distance_from_edge = (width - screw_distance) / 2;
+
     // cover mount
-    translate([1.5, 24, 29])
+    translate([distance_from_edge, 24, 29])
         rotate([90, 0, 0]) {
-            screw_mount(length = 17, nut_size = 6, screw_size = 3, nut = "square");
+            translate([screw_size, screw_size, 0])
+                rotate([0, 0, 180])
+                    screw_mount(length = 17, nut_size = 6, screw_size = screw_size, nut = "square+");
             translate([1.5, 1.5, - 20])
                 cylinder(d = 6, h = 20);
         }
 
-    translate([25.5, 24, 29])
+    translate([width - distance_from_edge - screw_size, 24, 29])
         rotate([90, 0, 0]) {
-            screw_mount(length = 17, nut_size = 6, screw_size = 3, nut = "square");
+            screw_mount(length = 17, nut_size = 6, screw_size = screw_size, nut = "square+");
             translate([1.5, 1.5, - 20])
                 cylinder(d = 6, h = 20);
         }
+}
+
+module screw_x_carriage_mount() {
+    screw_distance = 23;
+    screw_size = 3;
+
+    distance_from_edge = (width - screw_distance) / 2;
 
     // X carriage mount
-    translate([2, 15, 35])
+    translate([distance_from_edge, 15, 35])
         rotate([90, 0, 0])
             screw_mount(length = 20, nut_size = 6, screw_size = 3, nut = "none");
 
-    translate([25, 15, 35])
+    translate([width - (distance_from_edge + screw_size), 15, 35])
         rotate([90, 0, 0])
             screw_mount(length = 20, nut_size = 6, screw_size = 3, nut = "none");
 }

lib/common.scad

@@ -8,7 +8,11 @@ module screw_mount(length, nut_size, screw_size, nut = "none") {
         } else if (nut == "square") {
             translate([- nut_size / 2, - nut_size / 2, length - 3])
                 cube([nut_size, nut_size, 3]);
+        } if (nut == "square+") {
+            translate([- nut_size / 2, - nut_size / 2, length - 3])
+                cube([nut_size+100, nut_size, 3]);
         }
+        
     }
 }