Added Spool Holder

Spool Holder/Spool Holder.scad

+/*
+ * Based on the "Fabrikator mini Esun Spool holder" by "Rlw":
+ * http://www.thingiverse.com/thing:1324831
+ *
+ * Recreated and parameterized by:
+ * Thomas Buck <xythobuz@xythobuz.de> in March 2016
+ *
+ * Licensed under the Creative Commons - Attribution license.
+ *
+ * Settings suggested by the original author:
+ *   Rafts: No
+ *   Supports: No
+ *   Resolution: 0.2mm
+ *   Infill: 15%
+ */
+
+// Modify the overall length (moving the top part)
+size_modifier = -25;
+
+// Spool width
+spool_width = 35;
+
+// Distance of spool rollers from border
+balls_distance = 7.5;
+
+// width of outer spool border
+outer_border_width = 6;
+
+// set if the inner spool border should be rounded
+// to save some more material
+round_top = true;
+
+// -----------------------------------------------------------
+
+inner_border_width = round_top ? 10 : 5;
+body_height_modifier = round_top ? -19 : 0;
+
+// -----------------------------------------------------------
+
+// a cylinder cut in half in the middle
+module half_cylinder(h, r) {
+    difference() {
+        cylinder(h, r, r);
+        translate([0, -r, 0]) cube([r, 2 * r, h]);
+    }
+}
+
+// -----------------------------------------------------------
+
+//import("fabrikator_mini_gsun_5kg_175mm__spool_holder.stl");
+
+// upper body
+translate([5, -19, 0])
+    cube([5, 51 + size_modifier + body_height_modifier, 40]);
+
+// lower body
+translate([5, -43, 0])
+    cube([4, 24, 40]);
+
+// upper border
+translate([10, -19, 0])
+    cube([9, 5, 40]);
+
+// upper lip
+translate([14, -24, 0])
+    cube([5, 5, 40]);
+
+// lower border
+translate([9, -43, 0])
+    cube([3, 3, 40]);
+
+// stabilization
+translate([0,  size_modifier, 0]) difference() {
+    rotate([0, 0, 45]) translate([2.5, -5, 0]) cube([4, 21, 40]);
+
+    translate([5, -5, 0]) cube([10, 10, 40]);
+    translate([-10, 13, 0]) cube([10, 10, 40]);
+}
+
+// inner border
+translate([0,  size_modifier, 0])
+    scale([1, 0.85, 1])
+    translate([0, 15.5, 20])
+    rotate([-90, 0, 0])
+    rotate([0, 90, 0])
+    half_cylinder(inner_border_width, 20);
+
+// outer border
+translate([0,  size_modifier, 0])
+    scale([1, 0.85, 1])
+    translate([-(spool_width + outer_border_width), 15.5, 20])
+    rotate([-90, 0, 0])
+    rotate([0, 90, 0])
+    half_cylinder(outer_border_width, 20);
+
+// roll plane
+translate([0,  size_modifier, 0])
+    translate([-(spool_width + outer_border_width), 13, 0])
+    cube([spool_width + outer_border_width + inner_border_width, 1, 40]);
+
+// roll
+translate([0,  size_modifier, 0])
+    scale([1, 0.4, 1])
+    translate([-spool_width, 33, 20])
+    rotate([-90, 0, 0])
+    rotate([0, 90, 0])
+    half_cylinder(spool_width, 20);
+
+// rolling balls
+translate([0,  size_modifier, 0])
+    translate([-(spool_width - balls_distance), 19, 20])
+    sphere(r = 3);
+translate([0,  size_modifier, 0])
+    translate([-balls_distance, 19, 20])
+    sphere(r = 3);