oops

notebook_nueva/keyboard.py

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+import cadquery as cq
+import math
+
+# Size of the kbd board
+kbd_height = 95.5
+kbd_width = 305
+back_thickness = 17
+front_thickness = 10
+
+# Pythagoras
+actual_height = (kbd_height**2 - (back_thickness - front_thickness) ** 2) ** 0.5
+kbd_angle = math.acos(actual_height / kbd_height) * 180 / math.pi
+
+kbd_pillar_positions = [
+    (18.25, 16),
+    (142.5, 25.5),
+    (kbd_width - 20, 16),
+    (23.5, 79.5),
+    (145.5, 82.5),
+    (kbd_width - 19, 79.5),
+]
+
+elements = [
+    # Shorter pillars
+    {
+        "x": 0,
+        "y": 0,
+        "z": 5.5,
+        "shape": cq.Sketch().push(kbd_pillar_positions).circle(4, mode="a"),
+    },
+    # Taller pillars with holes for self-tapping screws
+    {
+        "x": 0,
+        "y": 0,
+        "z": 2.5,
+        "shape": (
+            cq.Sketch()
+            .push(kbd_pillar_positions)
+            .circle(2.2, mode="a")
+            .circle(1.1, mode="s")
+        ),
+    },
+]
+
+
+def add(
+    *,
+    model,
+    width,
+    height,
+    thickness,
+    offset_x,
+    offset_y,
+    bottom_face,
+    back_face,
+    shell_t
+):
+
+    # This one is special, it creates angled things and cuts off the
+    # case, so ... it's going to do weird stuff
+
+    if bottom_face:
+        model = (
+            model.faces(bottom_face)
+            .workplane(centerOption="CenterOfBoundBox", offset=-front_thickness)
+            .center(
+                -width / 2,
+                height / 2,
+            )
+            .transformed(rotate=cq.Vector(kbd_angle, 0, 0))
+            .tag("kbd_sloped")
+        )
+        for element in elements:
+            model = (
+                model.workplaneFromTagged("kbd_sloped")
+                .center(offset_x + element["x"], -offset_y - element["y"])
+                .workplane(offset=element["z"])
+                .placeSketch(element["shape"])
+                .extrude(100)
+            )
+
+        model = (
+            model.workplaneFromTagged("mid_height")
+            .transformed(offset=cq.Vector(0, 0, -thickness / 2))
+            .split(keepTop=True)
+            .faces(">X")
+            .workplane(centerOption="CenterOfBoundBox")
+            .center(-height / 2, -thickness / 2)
+            .placeSketch(
+                cq.Sketch().polygon(
+                    [
+                        [0, front_thickness],
+                        [actual_height, back_thickness],
+                        [actual_height, 1000],
+                        [0, 1000],
+                        [0, front_thickness],
+                    ]
+                )
+            )
+            .cutBlind(-1000)
+        )
+
+    return model