From f4d5ff2192c1b21aaa3a85c2ee120a4bb1b8b28d Mon Sep 17 00:00:00 2001
From: Thomas Schwery <thomas@inf3.ch>
Date: Sat, 12 Mar 2016 09:55:37 +0100
Subject: [PATCH] Battery holder for 5500mAh Swaytronic battery

---
 battery_holder.scad | 63 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 battery_holder.scad

diff --git a/battery_holder.scad b/battery_holder.scad
new file mode 100644
index 0000000..0cf5750
--- /dev/null
+++ b/battery_holder.scad
@@ -0,0 +1,63 @@
+use <fonts/CasualStencil.ttf>
+
+module arm_preview(angle) {
+    rotate([180, 0, 90 + angle])
+        translate([-735, -186.4, 0]) {
+            import("Crossfire_2/ArmTall4H.stl");
+        }
+}
+
+
+module bumper_hole() {
+    rotate([0, 180, 0]) translate([0, 0, -1]) union() {
+        cylinder(d =  8.5, center = true, h = 3.1);
+        translate([0, 0, 0.76])
+            cylinder(d = 14.5, center = true, h = 1.5);
+    }
+}
+
+module band_hole() {
+    translate([0, 0, 1.5]) union() {
+        translate([  9, 0, 0]) cylinder(d =  4, center = true, h = 5);
+        translate([- 9, 0, 0]) cylinder(d =  4, center = true, h = 5);
+        cube([18, 4, 5], center = true);
+    }
+}
+
+$fn=30;
+
+/*
+color("DarkViolet") {
+    translate([ 24,  24, 29]) arm_preview(- 45 + 180);
+    translate([-24,  24, 29]) arm_preview(  45 + 180);
+    translate([ 24, -24, 29]) arm_preview(  45);
+    translate([-24, -24, 29]) arm_preview(- 45);
+}
+*/
+
+intersection() {
+    difference() {
+        union() {
+            translate([0, 0, -8]) cube(size=[150, 55, 20], center = true);
+        }
+        union() {
+            translate([   0,   0,- 10.5]) cube(size=[147, 52, 20], center = true);
+            
+            translate([   0,  21, -1.5]) cylinder(d = 3, center = true, h = 7.2);
+            translate([   0,- 21, -1.5]) cylinder(d = 3, center = true, h = 7.2);
+            translate([  21,   0, -1.5]) cylinder(d = 3, center = true, h = 7.2);
+            translate([- 21,   0, -1.5]) cylinder(d = 3, center = true, h = 7.2);
+            
+            translate([74, 25, -15.5]) cube(size=[25, 20, 30], center = true);
+            
+            // bumper holes are removed
+            translate([ 32,   0, 0]) bumper_hole();
+            translate([-32,   0, 0]) bumper_hole();
+            
+            translate([ 20,  26, -1.5]) band_hole();
+            translate([ 20,- 26, -1.5]) band_hole();
+            translate([-20,  26, -1.5]) band_hole();
+            translate([-20,- 26, -1.5]) band_hole();
+        }
+    }
+}
\ No newline at end of file