Thin Extrude builds walls of a set thickness along sketch curves, open chains and closed loops, with the wall centred, inside, outside or on both sides at two thicknesses. Saved under format 20 (thin on an Extrude); an extrude without thin saves as before. Closes #721.
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@@ -9,7 +9,7 @@ Where the expected values come from (the **Source** column):
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No expected value comes from a commercial CAD product.
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**81 / 81 cases pass**; sources: 60 analytic, 21 freecad. 0 known failure(s) tracked in issues; 0 case(s) without expected values yet.
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**82 / 82 cases pass**; sources: 61 analytic, 21 freecad. 0 known failure(s) tracked in issues; 0 case(s) without expected values yet.
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| Case | Source | Result | Surface distance mm (max / mean) | Method | Notes |
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|---|---|---|---|---|---|
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@@ -54,7 +54,7 @@ No expected value comes from a commercial CAD product.
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| 39-tee-pipe | freecad 1.1.4 | pass | 0.008 / 0.0014 (worst at -9.7, 2.4, 40.0) | FreeCAD (OpenCASCADE) build of recipe.json by tools/freecad-oracle/build.py: Part extrude, Part extrude join, Part extrude cut | |
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| 40-box-sphere-torus | analytic | pass | | box 60x60x10 (z -10..0) + upper hemisphere r12 + spherical cap h2 below z=-10 (V = pi h^2(3R-h)/3, A = 2 pi R h) - lower half torus R22 r4 (Pappus: V = pi r^2/2 * 2 pi R, centroid -4r/3pi, A = pi r * 2 pi R); top loses disc r12 and annulus 18..26, bottom loses disc r sqrt(44) | faces: bottom, 4 sides, top split by the groove into an annulus (r 12..18) and the outer part, upper sphere, lower cap, torus |
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| 41-tube-radial-holes | freecad 1.1.4 | pass | 0.010 / 0.0012 (worst at 1.9, 19.9, 24.8) | FreeCAD (OpenCASCADE) build of recipe.json by tools/freecad-oracle/build.py: Part extrude, Part extrude cut, pattern (tools transformed and re-applied) | |
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| 42-overlapping-patterns | freecad 1.1.4 | pass | 0.030 / 0.0010 (worst at -20.0, -0.0, 5.0) | FreeCAD (OpenCASCADE) build of recipe.json by tools/freecad-oracle/build.py: Part extrude, Part extrude cut, pattern (tools transformed and re-applied), Part extrude cut, pattern (tools transformed and re-applied) | |
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| 42-overlapping-patterns | freecad 1.1.4 | pass | 0.009 / 0.0010 (worst at -1.0, -10.1, 2.2) | FreeCAD (OpenCASCADE) build of recipe.json by tools/freecad-oracle/build.py: Part extrude, Part extrude cut, pattern (tools transformed and re-applied), Part extrude cut, pattern (tools transformed and re-applied) | |
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| 43-cut-splits-body | analytic | pass | | two boxes 35x20x20 (x 0..35 and 45..80): V = 2abc, A = 2*2(ab+bc+ca) | |
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| 44-shell-l-bracket | analytic | pass | | L prism (area 736, perimeter 200) x 20 minus cavity = L shrunk by 2 (SolidCraft's intersection-join shell convention: inner faces offset by 2 and extended to meet, sharp inner corner at (6,6); area 352) from z=2 to 20. A rounded (arc) join would give V 8368.5487, A 8768.5487, 16 faces | |
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| 45-shell-boss-plate | analytic | pass | | plate 60x60x10 + boss r12 h20 minus cavity (box 56x56x8 + cylinder r10 z8..28) under SolidCraft's intersection-join shell convention (offset faces extended to meet: sharp circular inner edge at r10, z8). A rounded (arc) join would give V 13620.2567, A 14104.4455, 16 faces (torus round r2) | |
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@@ -71,13 +71,13 @@ No expected value comes from a commercial CAD product.
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| 56-holes-on-curved-face | freecad 1.1.4 | pass | 0.009 / 0.0018 (worst at -16.9, 18.5, 0.0) | FreeCAD (OpenCASCADE) build of recipe.json by tools/freecad-oracle/build.py: Part extrude, hole tool (cylinder/cone) cut | |
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| 57-hole-pattern-sketch-points | analytic | pass | | plate 80x50x10 minus 6 counterbored through holes (cb d10 x 5.5, hole d5.5) at x 15/40/65, y 15/35 | |
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| 58-phone-stand | freecad 1.1.4 | pass | 0.007 / 0.0010 (worst at 82.5, 11.7, 6.1) | FreeCAD (OpenCASCADE) build of recipe.json by tools/freecad-oracle/build.py: Part extrude, Part makeFillet, Part extrude cut | |
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| 59-enclosure-base | freecad 1.1.4 | pass | 0.008 / 0.0017 (worst at 90.9, 51.0, 6.0) | FreeCAD (OpenCASCADE) build of recipe.json by tools/freecad-oracle/build.py: Part extrude, Part makeFillet, makeThickness shell, Part extrude join, Part extrude cut | |
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| 59-enclosure-base | freecad 1.1.4 | pass | 0.008 / 0.0017 (worst at 90.9, 53.0, 6.0) | FreeCAD (OpenCASCADE) build of recipe.json by tools/freecad-oracle/build.py: Part extrude, Part makeFillet, makeThickness shell, Part extrude join, Part extrude cut | |
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| 60-pipe-flange | freecad 1.1.4 | pass | | FreeCAD (OpenCASCADE) build of recipe.json by tools/freecad-oracle/build.py: Part revolve, Part extrude cut, pattern (tools transformed and re-applied), Part makeChamfer, Part makeFillet | No reference.stl: over 409600 bytes even at 0.02 mm deflection (11380 facets). |
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| 61-shaft-keyway | freecad 1.1.4 | pass | 0.008 / 0.0019 (worst at 11.9, 3.9, 45.8) | FreeCAD (OpenCASCADE) build of recipe.json by tools/freecad-oracle/build.py: Part revolve, Part makeChamfer, Part extrude cut | |
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| 61-shaft-keyway | freecad 1.1.4 | pass | 0.008 / 0.0019 (worst at 12.2, 2.8, 72.1) | FreeCAD (OpenCASCADE) build of recipe.json by tools/freecad-oracle/build.py: Part revolve, Part makeChamfer, Part extrude cut | |
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| 62-heat-sink | analytic | pass | | base 60x50x5 + 15 fins 1.5x50x25 at x = 2 + 4k: sums of boxes; fin ends coplanar with the base ends | faces: bottom, x=0, x=60, y=0 and y=50 (each merged with the fin ends), 16 base-top strips, 15x3 fin faces |
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| 63-hinge-knuckle | freecad 1.1.4 | pass | 0.008 / 0.0016 (worst at 28.0, 36.9, 4.7) | FreeCAD (OpenCASCADE) build of recipe.json by tools/freecad-oracle/build.py: Part extrude, Part extrude join, Part extrude cut | |
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| 64-sketch-tangent-arc-chain | analytic | pass | | solved sketch: 80x20 rectangle whose top is 4 tangent R12 arcs on 20 mm chords alternating up/down (net area 1600); prism h3: V = A h, area = 2A + perimeter*h, Green's theorem for centroid | |
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| 65-sketch-gear-tooth | freecad 1.1.4 | pass | 0.008 / 0.0017 (worst at 6.5, 39.5, 8.0) | FreeCAD (OpenCASCADE) build of recipe.json by tools/freecad-oracle/build.py: Sketcher-solved sketch, Part extrude | |
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| 65-sketch-gear-tooth | freecad 1.1.4 | pass | 0.008 / 0.0017 (worst at -6.5, 39.5, 0.0) | FreeCAD (OpenCASCADE) build of recipe.json by tools/freecad-oracle/build.py: Sketcher-solved sketch, Part extrude | |
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| 66-sketch-linkage | analytic | pass | | solved sketch: hull of circles R12 at (0,0) and R8 at (60,0) (outer tangent lines, cos a = 4/60) minus holes d12, d8 (concentric) and d4 at (30,+-4) (symmetry keeps radii equal); prism h6 | |
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| 67-sm-base-flange | analytic | pass | | plate 100 x 60 x t, t = 2.5 (Steel (mm) rule), thickness along +Z: V = 100*60*t, A = 2(ab+bc+ca) | |
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| 68-sm-edge-flange | analytic | pass | | extrusion along x (100) of the YZ section: base y 5..60 x t; 90 deg bend annulus R 2.5..5 about (y 5, z 5); flange y 0..2.5, z 5..20. Setback (R+t)tan45 = 5 (inside bend position, outer-face height datum: outer face of flange reaches z = 20); V = L*A_sec, A = 2 A_sec + L P_sec | trim/setback and height datum are SolidCraft's documented edge-flange conventions (sheet.rs add_flanges) |
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@@ -94,6 +94,7 @@ No expected value comes from a commercial CAD product.
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| 79-fillet-chord-length | analytic | pass | | box 40x30x20, top front edge rounded 4 wide across (chord c): r = c / (2 cos 45 deg) = 2 sqrt 2; V = abc - (1 - pi/4) r^2 L, A = 2(ab + bc + ca) - 2 r L + (pi/2) r L - 2 (1 - pi/4) r^2 | |
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| 80-fillet-taper-to-fit | analytic | pass | | plate (top 20 -> 2 wide over x 0..40, 15 high) with its top front edge filleted at 3, fit: taper. The radius is the taper law: a clamped cubic B-spline in u = x/40 on 8 equal spans, control radii min(3, 0.9 room) at the Greville abscissae, room = min(20 - 18u, 15) tan 45 deg (top face width, front face height): 3.0000, 3.0000, 3.0000, 3.0000, 3.0000, 3.0000, 3.0000, 3.0000, 3.0000, 2.4750, 1.8000. Sections are quarter rounds; V, moments and areas integrated along the edge | |
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| 81-fillet-spline-radius | analytic | pass | | box 40x30x20 with its top front edge (y=0, z=20) rounded at a radius that is a clamped cubic B-spline in u = x/40, knots 0,0,0,0,0.25,0.6,1,1,1,1, control radii 2, 5, 1.5, 4, 1, 3 (r(0) = 2, r(40) = 3). Sections are quarter rounds; V, moments and areas integrated along the edge, exactly per knot span | |
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| 82-thin-extrude-frame | analytic | pass | | square frame: the lines' 40 mm square walled 3 mm inside and 1 mm outside (mitred corners) is 42 x 42 less 34 x 34, 10 mm tall: V = (42^2 - 34^2) * 10, A = 2 (42^2 - 34^2) + 4 * 42 * 10 + 4 * 34 * 10 | |
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## Not covered by a reference case
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