From: Lukáš Jiřiště <redacted>
Date: Sat, 12 Sep 2026 12:05:50 +0000 (+0200)
Subject: Add first prototype
X-Git-Url: https://git.ljiriste.work/?a=commitdiff_plain;h=87ae377116f00990c0bfe9342f14c5b4a565e837;p=organizer.git

Add first prototype

This is just the basic shape without modularity (yet).
---

87ae377116f00990c0bfe9342f14c5b4a565e837
diff --git a/skeleton_cell.scad b/skeleton_cell.scad
new file mode 100644
index 0000000..0aaa82a
--- /dev/null
+++ b/skeleton_cell.scad
@@ -0,0 +1,80 @@
+fit_clearance = 0.5;
+
+width = 50;
+height = 50;
+depth = 100;
+
+thickness = 2;
+
+ring_height = thickness;
+ring_pos = thickness;
+
+ring_clearance = ring_height + ring_pos;
+ring_thickness = thickness / 2;
+
+module face(width, height, thickness, ring_clearance)
+{
+	linear_extrude(thickness)
+		difference()
+		{
+			square([width, height], center = true);
+			square([width - 2 * thickness, height - 2 * thickness], center = true);
+			translate([0, - (height / 2 - ring_clearance / 2)])
+				square([width, ring_clearance], center = true);
+		};
+	translate([0, - (height / 2 - (ring_clearance + thickness) / 2), ring_thickness])
+		linear_extrude(thickness - ring_thickness)
+			difference()
+			{
+				square([width - 2 * ring_thickness, ring_clearance + thickness], center = true);
+				translate([0, thickness / 2])
+					square([width - 2 * thickness, ring_clearance], center = true);
+			};
+}
+
+module ring(width, depth, ring_thickness, ring_height)
+{
+	linear_extrude(ring_height)
+		difference()
+		{
+			square([width, depth], center=true);
+			square([width - 2 * ring_thickness, depth - 2 * ring_thickness], center = true);
+		};
+}
+
+module rail(depth, thickness)
+{
+	linear_extrude(depth)
+		polygon([[0, 0], [0, thickness], [thickness, 0]]);
+}
+
+module rails(dims, thickness, fit_clearance)
+{
+	translate([dims.x / 2, dims.y / 2])
+		mirror([1, 1, 0])
+		rail(dims.z - thickness, thickness - fit_clearance);
+	translate([- (dims.x / 2 - thickness), - (dims.y / 2 - thickness)])
+		mirror([1, 1, 0])
+		rail(dims.z - thickness, thickness - fit_clearance);
+	translate([dims.x / 2, - dims.y / 2])
+		mirror([1, 0, 0])
+		rail(dims.z - thickness, thickness - fit_clearance);
+	translate([- (dims.x / 2 - thickness), dims.y / 2 - thickness])
+		mirror([1, 0, 0])
+		rail(dims.z - thickness, thickness - fit_clearance);
+}
+
+module half_cage()
+{
+	face(width, height, thickness, ring_clearance);
+	translate([0, ring_clearance / 2, thickness])
+		rails([width, height - ring_clearance, depth - thickness], thickness, fit_clearance);
+}
+
+half_cage();
+translate([0, 0, depth])
+	rotate(180, [0, 1, 0])
+		half_cage();
+translate([0, - (height / 2 - ring_clearance + fit_clearance / 2), depth / 2])
+	rotate(90, [1, 0, 0])
+		ring(width, depth, ring_thickness - fit_clearance, ring_height - fit_clearance);