From 586fcd2f3b7147bf7d8813f84cc2c0cddeb3bb3c Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Fri, 15 Jul 2016 12:23:18 +0000
Subject: e3d chimera mockup

---
diff --git a/e3dchimera.scad b/e3dchimera.scad
new file mode 100644
index 0000000..2cd759d
--- a/dev/null
+++ b/e3dchimera.scad
@@ -0,0 +1,70 @@
+
+chimera_heatsink_size = [30,18,30];
+chimera_fins_h = 6;
+chimera_fin_thickness = 1.75;
+chimera_fins_space = 2.5;
+chimera_fins_n = 8;
+chimera_nozzles_apart = 18;
+chimera_nozzles_from_back = 6;
+chimera_heatsink_to_heater=2.1;
+e3d_heater_size = [16,20,11.5];
+e3d_heater_nozzle_from_front = 4.5;
+chimera_assembly_height = 49.5;
+chimera_mounting_holes_from_top = [
+ [0, 20], [-4.5,10], [4.5,10]
+];
+chimera_heatbreak_screws_h = [ 3, 11 ];
+chimera_heatbreak_screws_d = 3; /* TODO: check */
+
+e3d_nozzle_height = 12.5;
+e3d_nozzle_0_4 = [ 1, 0.8, 1.5, 10.5 ];
+module e3d_nozzle(nozzle = e3d_nozzle_0_4) {
+ h = 12.5;
+ cylinder(d1=nozzle[0],d2=nozzle[0]+2*(h-nozzle[3])/tan(180-125),h=h-nozzle[3]);
+ translate([0,0,h-nozzle[3]])
+ cylinder(r=7/2/cos(3),h=e3d_nozzle_0_4[3]-7.5,$fn=6);
+ translate([0,0,h-7.5]) cylinder(d=5,h=7.5);
+ translate([0,0,h-6]) cylinder(d=6,h=6);
+}
+
+module e3d_heater() {
+ translate([-e3d_heater_size[0]/2,-e3d_heater_nozzle_from_front,0])
+ cube(size=e3d_heater_size);
+}
+
+module chimera_heatsink(grub_show=false) {
+ difference() {
+  translate([-chimera_heatsink_size[0]/2,-chimera_nozzles_from_back,0])
+  cube(size=chimera_heatsink_size);
+  for(h=chimera_mounting_holes_from_top) {
+   translate([h[0],0,chimera_heatsink_size[2]-h[1]])
+   rotate([-90,0,0])
+   translate([0,0,-1-chimera_nozzles_from_back])
+   cylinder(d=3,h=chimera_heatsink_size[1]+2);
+  }
+ }
+ for(s=[-1,1]) // collets
+  translate([s*chimera_nozzles_apart/2,0,chimera_heatsink_size[2]])
+  cylinder(h=1,d=7);
+ if(grub_show) {
+  for(s=[-1,1]) for(z=chimera_heatbreak_screws_h)
+   translate([s*chimera_nozzles_apart/2,0,z])
+   rotate([90,0,0])
+   cylinder(d=chimera_heatbreak_screws_d,h=chimera_heatsink_size[2]*3,center=true);
+ }
+}
+
+module chimera_assembly(nozzle=e3d_nozzle_0_4,heatersinline=false,grub_show=false) {
+ translate([0,0,chimera_assembly_height-chimera_heatsink_size[2]])
+ chimera_heatsink(grub_show=false);
+ for(s=[-1,1]) translate([s*chimera_nozzles_apart/2,0,0]) {
+  e3d_nozzle(nozzle=nozzle);
+  translate([0,0,e3d_nozzle_height])
+  cylinder(d=7,h=chimera_assembly_height-e3d_nozzle_height); // heatbreak
+  rotate([0,0, heatersinline? s*-90 : (s+1)/2*180 ])
+  translate([0,0,6])
+  e3d_heater();
+ }
+}
+
+%chimera_assembly();
--
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