TooTallToby tutorials: unbreak and test.

- Unbreak the three broken tutorials (fixes gumyr#848) - This involved a rewrite of PPP-01-10 because I already had my own solution to that one and I couldn't easily tell what was going wrong with the previous solution. - Add assertions to all the tutorials so that non-raising means success - Add the TTT examples to `test_examples.py` added recently for gumyr#909 - Also added sympy to development dependencies since one of the TTT examples uses it.
fischman · Feb 23, 2025 · 3e8bb44 · 3e8bb44
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diff --git a/docs/assets/ttt/ttt-23-02-02-sm_hanger.py b/docs/assets/ttt/ttt-23-02-02-sm_hanger.py
@@ -92,6 +92,13 @@
     mirror(about=Plane.YZ)
     mirror(about=Plane.XZ)
 
-print(f"Mass: {sm_hanger.part.volume*7800*1e-6:0.1f} g")
+got_mass = sm_hanger.part.volume*7800*1e-6
+want_mass = 1028
+tolerance = 10
+delta = abs(got_mass - want_mass)
+print(f"Mass: {got_mass:0.1f} g")
+assert delta < tolerance, f'{got_mass=}, {want_mass=}, {delta=}, {tolerance=}'
+
+assert abs(got_mass - 1028) < 10, f'{got_mass=}, want=1028, tolerance=10'
 
 show(sm_hanger)
diff --git a/docs/assets/ttt/ttt-23-t-24-curved_support.py b/docs/assets/ttt/ttt-23-t-24-curved_support.py
@@ -27,7 +27,7 @@
     (yl8 - 50) / (55 / 2 - xl8) - tan(radians(8)),  # 8 degree slope
 ]
 # There are two solutions but we want the 2nd one
-solution = sympy.solve(equations, dict=True)[1]
+solution = {k: float(v) for k,v in sympy.solve(equations, dict=True)[1].items()}
 
 # Create the critical points
 c30 = Vector(x30, solution[y30])
@@ -58,5 +58,11 @@
     with Locations((0, 125)):
         Hole(20 / 2)
 
-print(curved_support.part.volume * 7800e-6)
+got_mass = curved_support.part.volume * 7800e-6
+want_mass = 1294
+delta = abs(got_mass - want_mass)
+tolerance = 3
+print(f"Mass: {got_mass:0.1f} g")
+assert delta < tolerance, f'{got_mass=}, {want_mass=}, {delta=}, {tolerance=}'
+
 show(curved_support)
diff --git a/docs/assets/ttt/ttt-24-SPO-06-Buffer_Stand.py b/docs/assets/ttt/ttt-24-SPO-06-Buffer_Stand.py
@@ -45,6 +45,13 @@
     mirror(about=Plane.YZ)
 
 part = scale(p.part, IN)
-print(f"\npart weight = {part.volume*7800e-6/LB:0.2f} lbs")
+
+
+got_mass = part.volume*7800e-6/LB
+want_mass = 3.923
+tolerance = 0.02
+delta = abs(got_mass - want_mass)
+print(f"Mass: {got_mass:0.1f} lbs")
+assert delta < tolerance, f'{got_mass=}, {want_mass=}, {delta=}, {tolerance=}'
 
 show(p)
diff --git a/docs/assets/ttt/ttt-ppp0101.py b/docs/assets/ttt/ttt-ppp0101.py
@@ -1,47 +1,54 @@
-"""
-Too Tall Toby Party Pack 01-01 Bearing Bracket
-"""
-
-from build123d import *
-from ocp_vscode import *
-
-densa = 7800 / 1e6  # carbon steel density g/mm^3
-densb = 2700 / 1e6  # aluminum alloy
-densc = 1020 / 1e6  # ABS
-
-with BuildPart() as p:
-    with BuildSketch() as s:
-        Rectangle(115, 50)
-        with Locations((5 / 2, 0)):
-            SlotOverall(90, 12, mode=Mode.SUBTRACT)
-    extrude(amount=15)
-
-    with BuildSketch(Plane.XZ.offset(50 / 2)) as s3:
-        with Locations((-115 / 2 + 26, 15)):
-            SlotOverall(42 + 2 * 26 + 12, 2 * 26, rotation=90)
-    zz = extrude(amount=-12)
-    split(bisect_by=Plane.XY)
-    edgs = p.part.edges().filter_by(Axis.Y).group_by(Axis.X)[-2]
-    fillet(edgs, 9)
-
-    with Locations(zz.faces().sort_by(Axis.Y)[0]):
-        with Locations((42 / 2 + 6, 0)):
-            CounterBoreHole(24 / 2, 34 / 2, 4)
-    mirror(about=Plane.XZ)
-
-    with BuildSketch() as s4:
-        RectangleRounded(115, 50, 6)
-    extrude(amount=80, mode=Mode.INTERSECT)
-    # fillet does not work right, mode intersect is safer
-
-    with BuildSketch(Plane.YZ) as s4:
-        with BuildLine() as bl:
-            l1 = Line((0, 0), (18 / 2, 0))
-            l2 = PolarLine(l1 @ 1, 8, 60, length_mode=LengthMode.VERTICAL)
-            l3 = Line(l2 @ 1, (0, 8))
-            mirror(about=Plane.YZ)
-        make_face()
-    extrude(amount=115/2, both=True, mode=Mode.SUBTRACT)
-
-show_object(p)
-print(f"\npart mass = {p.part.volume*densa:0.2f}")
+"""
+Too Tall Toby Party Pack 01-01 Bearing Bracket
+"""
+
+from build123d import *
+from ocp_vscode import *
+
+densa = 7800 / 1e6  # carbon steel density g/mm^3
+densb = 2700 / 1e6  # aluminum alloy
+densc = 1020 / 1e6  # ABS
+
+with BuildPart() as p:
+    with BuildSketch() as s:
+        Rectangle(115, 50)
+        with Locations((5 / 2, 0)):
+            SlotOverall(90, 12, mode=Mode.SUBTRACT)
+    extrude(amount=15)
+
+    with BuildSketch(Plane.XZ.offset(50 / 2)) as s3:
+        with Locations((-115 / 2 + 26, 15)):
+            SlotOverall(42 + 2 * 26 + 12, 2 * 26, rotation=90)
+    zz = extrude(amount=-12)
+    split(bisect_by=Plane.XY)
+    edgs = p.part.edges().filter_by(Axis.Y).group_by(Axis.X)[-2]
+    fillet(edgs, 9)
+
+    with Locations(zz.faces().sort_by(Axis.Y)[0]):
+        with Locations((42 / 2 + 6, 0)):
+            CounterBoreHole(24 / 2, 34 / 2, 4)
+    mirror(about=Plane.XZ)
+
+    with BuildSketch() as s4:
+        RectangleRounded(115, 50, 6)
+    extrude(amount=80, mode=Mode.INTERSECT)
+    # fillet does not work right, mode intersect is safer
+
+    with BuildSketch(Plane.YZ) as s4:
+        with BuildLine() as bl:
+            l1 = Line((0, 0), (18 / 2, 0))
+            l2 = PolarLine(l1 @ 1, 8, 60, length_mode=LengthMode.VERTICAL)
+            l3 = Line(l2 @ 1, (0, 8))
+            mirror(about=Plane.YZ)
+        make_face()
+    extrude(amount=115/2, both=True, mode=Mode.SUBTRACT)
+
+show_object(p)
+
+
+got_mass = p.part.volume*densa
+want_mass = 797.15
+tolerance = 1
+delta = abs(got_mass - want_mass)
+print(f"Mass: {got_mass:0.2f} g")
+assert delta < tolerance, f'{got_mass=}, {want_mass=}, {delta=}, {tolerance=}'
diff --git a/docs/assets/ttt/ttt-ppp0102.py b/docs/assets/ttt/ttt-ppp0102.py
@@ -1,49 +1,57 @@
-"""
-Too Tall Toby Party Pack 01-02 Post Cap
-"""
-
-from build123d import *
-from ocp_vscode import *
-
-densa = 7800 / 1e6  # carbon steel density g/mm^3
-densb = 2700 / 1e6  # aluminum alloy
-densc = 1020 / 1e6  # ABS
-
-
-# TTT Party Pack 01: PPP0102, mass(abs) = 43.09g
-with BuildPart() as p:
-    with BuildSketch(Plane.XZ) as sk1:
-        Rectangle(49, 48 - 8, align=(Align.CENTER, Align.MIN))
-        Rectangle(9, 48, align=(Align.CENTER, Align.MIN))
-        with Locations((9 / 2, 40)):
-            Ellipse(20, 8)
-        split(bisect_by=Plane.YZ)
-    revolve(axis=Axis.Z)
-
-    with BuildSketch(Plane.YZ.offset(-15)) as xc1:
-        with Locations((0, 40 / 2 - 17)):
-            Ellipse(10 / 2, 4 / 2)
-        with BuildLine(Plane.XZ) as l1:
-            CenterArc((-15, 40 / 2), 17, 90, 180)
-    sweep(path=l1)
-
-    fillet(p.edges().filter_by(GeomType.CIRCLE, reverse=True).group_by(Axis.X)[0], 1)
-
-    with BuildLine(mode=Mode.PRIVATE) as lc1:
-        PolarLine(
-            (42 / 2, 0), 37, 94, length_mode=LengthMode.VERTICAL
-        )  # construction line
-
-    pts = [
-        (0, 0),
-        (42 / 2, 0),
-        ((lc1.line @ 1).X, (lc1.line @ 1).Y),
-        (0, (lc1.line @ 1).Y),
-    ]
-    with BuildSketch(Plane.XZ) as sk2:
-        Polygon(*pts, align=None)
-        fillet(sk2.vertices().group_by(Axis.X)[1], 3)
-    revolve(axis=Axis.Z, mode=Mode.SUBTRACT)
-
-show(p)
-print(f"\npart mass = {p.part.volume*densa:0.2f}")
+"""
+Too Tall Toby Party Pack 01-02 Post Cap
+"""
+
+from build123d import *
+from ocp_vscode import *
+
+densa = 7800 / 1e6  # carbon steel density g/mm^3
+densb = 2700 / 1e6  # aluminum alloy
+densc = 1020 / 1e6  # ABS
+
+
+# TTT Party Pack 01: PPP0102, mass(abs) = 43.09g
+with BuildPart() as p:
+    with BuildSketch(Plane.XZ) as sk1:
+        Rectangle(49, 48 - 8, align=(Align.CENTER, Align.MIN))
+        Rectangle(9, 48, align=(Align.CENTER, Align.MIN))
+        with Locations((9 / 2, 40)):
+            Ellipse(20, 8)
+        split(bisect_by=Plane.YZ)
+    revolve(axis=Axis.Z)
+
+    with BuildSketch(Plane.YZ.offset(-15)) as xc1:
+        with Locations((0, 40 / 2 - 17)):
+            Ellipse(10 / 2, 4 / 2)
+        with BuildLine(Plane.XZ) as l1:
+            CenterArc((-15, 40 / 2), 17, 90, 180)
+    sweep(path=l1)
+
+    fillet(p.edges().filter_by(GeomType.CIRCLE, reverse=True).group_by(Axis.X)[0], 1)
+
+    with BuildLine(mode=Mode.PRIVATE) as lc1:
+        PolarLine(
+            (42 / 2, 0), 37, 94, length_mode=LengthMode.VERTICAL
+        )  # construction line
+
+    pts = [
+        (0, 0),
+        (42 / 2, 0),
+        ((lc1.line @ 1).X, (lc1.line @ 1).Y),
+        (0, (lc1.line @ 1).Y),
+    ]
+    with BuildSketch(Plane.XZ) as sk2:
+        Polygon(*pts, align=None)
+        fillet(sk2.vertices().group_by(Axis.X)[1], 3)
+    revolve(axis=Axis.Z, mode=Mode.SUBTRACT)
+
+show(p)
+
+
+got_mass = p.part.volume*densc
+want_mass = 43.09
+tolerance = 1
+delta = abs(got_mass - want_mass)
+print(f"Mass: {got_mass:0.2f} g")
+assert delta < tolerance, f'{got_mass=}, {want_mass=}, {delta=}, {tolerance=}'
+
diff --git a/docs/assets/ttt/ttt-ppp0103.py b/docs/assets/ttt/ttt-ppp0103.py
@@ -1,34 +1,40 @@
-"""
-Too Tall Toby Party Pack 01-03 C Clamp Base
-"""
-
-from build123d import *
-from ocp_vscode import *
-
-densa = 7800 / 1e6  # carbon steel density g/mm^3
-densb = 2700 / 1e6  # aluminum alloy
-densc = 1020 / 1e6  # ABS
-
-
-with BuildPart() as ppp0103:
-    with BuildSketch() as sk1:
-        RectangleRounded(34 * 2, 95, 18)
-        with Locations((0, -2)):
-            RectangleRounded((34 - 16) * 2, 95 - 18 - 14, 7, mode=Mode.SUBTRACT)
-        with Locations((-34 / 2, 0)):
-            Rectangle(34, 95, 0, mode=Mode.SUBTRACT)
-    extrude(amount=16)
-    with BuildSketch(Plane.XZ.offset(-95 / 2)) as cyl1:
-        with Locations((0, 16 / 2)):
-            Circle(16 / 2)
-    extrude(amount=18)
-    with BuildSketch(Plane.XZ.offset(95 / 2 - 14)) as cyl2:
-        with Locations((0, 16 / 2)):
-            Circle(16 / 2)
-    extrude(amount=23)
-    with Locations(Plane.XZ.offset(95 / 2 + 9)):
-        with Locations((0, 16 / 2)):
-            CounterSinkHole(5.5 / 2, 11.2 / 2, None, 90)
-
-show(ppp0103)
-print(f"\npart mass = {ppp0103.part.volume*densb:0.2f}")
+"""
+Too Tall Toby Party Pack 01-03 C Clamp Base
+"""
+
+from build123d import *
+from ocp_vscode import *
+
+densa = 7800 / 1e6  # carbon steel density g/mm^3
+densb = 2700 / 1e6  # aluminum alloy
+densc = 1020 / 1e6  # ABS
+
+
+with BuildPart() as ppp0103:
+    with BuildSketch() as sk1:
+        RectangleRounded(34 * 2, 95, 18)
+        with Locations((0, -2)):
+            RectangleRounded((34 - 16) * 2, 95 - 18 - 14, 7, mode=Mode.SUBTRACT)
+        with Locations((-34 / 2, 0)):
+            Rectangle(34, 95, 0, mode=Mode.SUBTRACT)
+    extrude(amount=16)
+    with BuildSketch(Plane.XZ.offset(-95 / 2)) as cyl1:
+        with Locations((0, 16 / 2)):
+            Circle(16 / 2)
+    extrude(amount=18)
+    with BuildSketch(Plane.XZ.offset(95 / 2 - 14)) as cyl2:
+        with Locations((0, 16 / 2)):
+            Circle(16 / 2)
+    extrude(amount=23)
+    with Locations(Plane.XZ.offset(95 / 2 + 9)):
+        with Locations((0, 16 / 2)):
+            CounterSinkHole(5.5 / 2, 11.2 / 2, None, 90)
+
+show(ppp0103)
+
+got_mass = ppp0103.part.volume*densb
+want_mass = 96.13
+tolerance = 1
+delta = abs(got_mass - want_mass)
+print(f"Mass: {got_mass:0.2f} g")
+assert delta < tolerance, f'{got_mass=}, {want_mass=}, {delta=}, {tolerance=}'