Init repo with first model and README

README.md

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+# CAD Models
+
+This repo contains a collection of random CAD models I've created mainly using build123d.
+
+## How to run 
+
+
+```
+uv run <model.py file>
+```
+
+## Model descriptions
+
+### Laptop Holder
+
+![Vertical Laptop holder with 4 slots](./img/laptop_holder.png)
+
+I needed a laptop holder that could hold 4 laptops (work, personal macbook, personal linux laptop, wife's laptop when she didn't need it). 
+This is my first real model created with build123d.
+

laptop_holder.py

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+# /// script
+# requires-python = ">=3.14"
+# dependencies = ["ocp_vscode", "build123d"]
+# ///
+
+from build123d import *
+from ocp_vscode import *
+
+### USER INPUTS ###
+base_thickness = 25.4 * MM
+wall_thickness = 9 * MM
+slots = [i * MM for i in [22, 22, 20, 20]]
+slot_height = 60 * MM
+width = 355.7 / 3 * MM  # width of macbook pro
+###################
+
+with BuildPart() as holder:  # noqa: SIM117
+    with BuildSketch() as sketch:
+        length = wall_thickness * (len(slots) + 1) + sum(slots)
+        height = slot_height + base_thickness
+        Rectangle(length, height)
+
+        offset = wall_thickness
+        for slot in slots:
+            with Locations((offset - length / 2, base_thickness - height / 2)):
+                Rectangle(
+                    slot, slot_height, mode=Mode.SUBTRACT, align=(Align.MIN, Align.MIN)
+                )
+                Circle(slot / 2, mode=Mode.SUBTRACT, align=(Align.MIN, Align.CENTER))
+            offset += wall_thickness + slot
+    extrude(amount=width)
+    fillet(
+        holder.edges().group_by(Axis.Y)[-1].filter_by(Axis.Z),
+        radius=wall_thickness / 2.5,
+    )
+    show(holder)
+export_stl(holder.part, "laptop_holder.stl")