| { |
| "schema_version": 1, |
| "parameters_sha256": "b81d1e97cf7d6dd148da841a2f0006420411ad9a7b6430d77ba7f76cbe1c1ffc", |
| "generator_sha256": "260b3aa0bed8b13f4c98f9d2da3f2e78ab5f5174cac2eb15123ecf8451957ed0", |
| "kinds": { |
| "plate": { |
| "rim_diameter_m": { |
| "value": 0.2286, |
| "status": "nominal", |
| "note": "listing: 9 in maximum outer diameter" |
| }, |
| "height_m": { |
| "value": 0.04, |
| "status": "nominal", |
| "note": "listing: 1.6 in overall height, foot plane to rim top" |
| }, |
| "wall_m": { |
| "value": 0.0035, |
| "status": "estimated", |
| "note": "wheat-straw PP mouldings run 2.5-4 mm" |
| }, |
| "floor_m": { |
| "value": 0.004, |
| "status": "estimated", |
| "note": "floor slightly thicker than the wall" |
| }, |
| "foot_diameter_m": { |
| "value": 0.14, |
| "status": "estimated", |
| "note": "about 61 % of the rim; a coupe plate carries a wide foot ring" |
| }, |
| "foot_width_m": { |
| "value": 0.006, |
| "status": "estimated", |
| "note": "moulded ring width" |
| }, |
| "foot_height_m": { |
| "value": 0.004, |
| "status": "estimated", |
| "note": "recess depth under the base centre" |
| }, |
| "side_bulge_m": { |
| "value": 0.006, |
| "status": "estimated", |
| "note": "sagitta of the convex underside arc foot -> rim (0 = straight cone); the flat eating well is DERIVED: where the wall offset rises above the floor" |
| }, |
| "side_rows": { |
| "value": 2, |
| "status": "estimated", |
| "note": "collision rows along the side arc (2 -> 8 bands, 192 pieces): measured cavity intrusion 0.59 mm; 3 rows (216 pieces) would give 0.42 mm" |
| }, |
| "grooves": { |
| "value": { |
| "heights_m": [], |
| "depth_m": 0.0006, |
| "half_width_m": 0.00125 |
| }, |
| "status": "estimated", |
| "note": "no decorative grooves seen on the plate" |
| }, |
| "mass_kg": { |
| "value": 0.094625, |
| "status": "measured", |
| "note": "user override: plate.mass_kg=0.094625" |
| } |
| }, |
| "bowl": { |
| "rim_diameter_m": { |
| "value": 0.14453, |
| "status": "measured", |
| "note": "callipers 2026-10-29: rim outer diameter, the outer rim corner at the top (the listing's 5.8 in / 148 mm was wrong)" |
| }, |
| "height_m": { |
| "value": 0.07312, |
| "status": "measured", |
| "note": "callipers 2026-10-29: foot plane (the ring's base) to the rim top" |
| }, |
| "wall_m": { |
| "value": 0.0028, |
| "status": "measured", |
| "note": "callipers 2026-10-29: body wall; a uniform shell, the outer surface is the inner curve offset by the wall along its outward normal" |
| }, |
| "floor_m": { |
| "value": 0.003, |
| "status": "estimated", |
| "note": "the floor the depth scale assumes: the inner floor top foot_height + floor = 8.57 mm is the first profile point; the uniform 2.8 mm shell puts the underside at the centre at 5.77 mm" |
| }, |
| "profile_points": { |
| "value": [ |
| [ |
| 0.0, |
| 0.00857 |
| ], |
| [ |
| 0.00947, |
| 0.00894 |
| ], |
| [ |
| 0.01947, |
| 0.01036 |
| ], |
| [ |
| 0.02947, |
| 0.01245 |
| ], |
| [ |
| 0.03947, |
| 0.01845 |
| ], |
| [ |
| 0.04947, |
| 0.02623 |
| ], |
| [ |
| 0.05947, |
| 0.04025 |
| ] |
| ], |
| "status": "measured", |
| "note": "inner surface (radius, height above the foot plane) [m]: the user's 7 depth readings, 1 cm steps from the rim's inner edge read off the top of a 1 mm steel rule, scaled by depth_scale (raw readings and conversion: docs/hotec_wheatstraw_asset.md); the generator adds the rim edge (rim_diameter/2 - wall, height) and fits a PCHIP z(r) mirrored about the axis (flat centre)" |
| }, |
| "depth_scale": { |
| "value": 0.959851, |
| "status": "derived", |
| "note": "derived from the three heights: (73.12 - 5.57 - 3.0) / 67.25, so the floor is 3.0 mm over the measured 5.57 mm ring (the raw depths left 0.3 mm); already in profile_points, recorded here and not re-applied" |
| }, |
| "foot_diameter_m": { |
| "value": 0.06572, |
| "status": "measured", |
| "note": "callipers 2026-10-29: the foot ring's outer face diameter" |
| }, |
| "foot_width_m": { |
| "value": 0.00316, |
| "status": "measured", |
| "note": "callipers 2026-10-29: the ring's radial width (inner face at foot_diameter/2 - width = 29.70 mm)" |
| }, |
| "foot_height_m": { |
| "value": 0.00557, |
| "status": "measured", |
| "note": "callipers 2026-10-29: the ring's base to the body's lowest point (73.12 rim to the ring's bottom minus 67.55 rim to the base underside); enters the depth scale and the floor top; the rib runs from z = 0 up into the shell" |
| }, |
| "side_rows": { |
| "value": 4, |
| "status": "estimated", |
| "note": "interior collision rows on the inner curve besides the axis, the ring faces' normals and the rim, each where the curve departs most from its chord (4 -> 7 shell bands + the rib band, 192 pieces): cavity intrusion 0.61 mm by the chord check, 0.94 mm sampled on the hull faces (on the inner side a hull spans its whole 15-degree sector); 5 rows (216 pieces) give the same 0.94 mm" |
| }, |
| "grooves": { |
| "value": { |
| "heights_m": [ |
| 0.054, |
| 0.06, |
| 0.066 |
| ], |
| "depth_m": 0.0006, |
| "half_width_m": 0.00125 |
| }, |
| "status": "estimated", |
| "note": "three horizontal grooves on the upper body, 6 mm pitch; visual only, collision smooth" |
| }, |
| "mass_kg": { |
| "value": 0.067375, |
| "status": "measured", |
| "note": "user override: bowl.mass_kg=0.067375" |
| } |
| }, |
| "cup": { |
| "rim_diameter_m": { |
| "value": 0.0711, |
| "status": "nominal", |
| "note": "listing: 2.8 in maximum width, PROVISIONAL (the listing mixes the 20-pack fluted cup and the 24-pack ringed cup)" |
| }, |
| "height_m": { |
| "value": 0.1049, |
| "status": "nominal", |
| "note": "listing: 4.13 in, PROVISIONAL" |
| }, |
| "wall_m": { |
| "value": 0.0025, |
| "status": "estimated", |
| "note": "cups are moulded thinner than plates" |
| }, |
| "floor_m": { |
| "value": 0.004, |
| "status": "estimated", |
| "note": "" |
| }, |
| "base_diameter_m": { |
| "value": 0.056, |
| "status": "estimated", |
| "note": "about 79 % of the rim: the mild taper seen in the photos" |
| }, |
| "foot_width_m": { |
| "value": 0.004, |
| "status": "estimated", |
| "note": "base ring width" |
| }, |
| "foot_height_m": { |
| "value": 0.002, |
| "status": "estimated", |
| "note": "shallow recess under the base" |
| }, |
| "flutes": { |
| "value": { |
| "count": 12, |
| "shape": "facet", |
| "depth_m": 0.0006, |
| "fade_z_m": [ |
| 0.012, |
| 0.02, |
| 0.09, |
| 0.098 |
| ] |
| }, |
| "status": "estimated", |
| "note": "vertical facets of the original cup; count and depth to be measured; count must divide the 96-vertex ring; outer surface only" |
| }, |
| "rings": { |
| "value": { |
| "heights_m": [], |
| "depth_m": 0.0006, |
| "half_width_m": 0.00125 |
| }, |
| "status": "estimated", |
| "note": "the ringed-cup alternative: set heights_m to e.g. [0.030, 0.050, 0.070] and flutes.count to 0" |
| }, |
| "mass_kg": { |
| "value": 0.0595, |
| "status": "measured", |
| "note": "user override: cup.mass_kg=0.0595" |
| } |
| } |
| }, |
| "measurements_requested": [ |
| "brimful water mass of one bowl and one cup (kitchen scale, +-1 g, water at ~20 C: 1 g ~ 1 mL)", |
| "rim outer diameter, foot/base outer diameter and overall height of each kind (calipers or ruler)", |
| "wall thickness at the rim and floor thickness (calipers)", |
| "cup: number of vertical facets (or rings) and their depth; whether facets reach the rim", |
| "bowl: heights of the three grooves above the foot plane", |
| "which pack the cup belongs to (20-pack fluted or 24-pack ringed)", |
| "mass of each piece (measured 2026-09-22 as 8-piece totals; authored as physics:mass via --set kind.mass_kg)" |
| ], |
| "capacity": { |
| "plate": null, |
| "bowl": { |
| "rim_z_m": 0.07312, |
| "headspace_z_m": 0.06812, |
| "brimful_ml": 649.0372621268237, |
| "brimful_us_floz": 21.946560715898443, |
| "headspace_ml": 574.5386281412352, |
| "mesh_brimful_ml": 648.5739831084022, |
| "mesh_over_polyline": 0.9992862058229086, |
| "polygon_area_factor": 0.9992862058229084, |
| "method": "pi * integral r_in(z)^2 dz of the delivered inner polyline from the cavity floor to the lowest rim point (temporary horizontal closure; asset not capped); mesh cross-check = signed volume of the inner surface closed by a fan at the rim", |
| "advertised_ml": 768.9117686249999, |
| "advertised_us_floz": 25.999999999999996, |
| "difference_ml": -119.87450649817617, |
| "difference_pct": -15.59015109269829 |
| }, |
| "cup": { |
| "rim_z_m": 0.1049, |
| "headspace_z_m": 0.09989999999999999, |
| "brimful_ml": 282.8328549552714, |
| "brimful_us_floz": 9.563716578284614, |
| "headspace_ml": 265.71601078674314, |
| "mesh_brimful_ml": 282.6309705103141, |
| "mesh_over_polyline": 0.9992862058229083, |
| "polygon_area_factor": 0.9992862058229084, |
| "method": "pi * integral r_in(z)^2 dz of the delivered inner polyline from the cavity floor to the lowest rim point (temporary horizontal closure; asset not capped); mesh cross-check = signed volume of the inner surface closed by a fan at the rim", |
| "advertised_ml": 354.88235475, |
| "advertised_us_floz": 12.0, |
| "difference_ml": -72.0494997947286, |
| "difference_pct": -20.302361847628212 |
| } |
| }, |
| "sensitivity": { |
| "plate": [], |
| "bowl": [ |
| { |
| "wall_m": 0.0018, |
| "foot_diameter_m": 0.05572, |
| "brimful_ml": 655.9684542886183 |
| }, |
| { |
| "wall_m": 0.0018, |
| "foot_diameter_m": 0.06572, |
| "brimful_ml": 655.9728471650762 |
| }, |
| { |
| "wall_m": 0.0018, |
| "foot_diameter_m": 0.07572, |
| "brimful_ml": 655.9710881708972 |
| }, |
| { |
| "wall_m": 0.0028, |
| "foot_diameter_m": 0.05572, |
| "brimful_ml": 649.0312175773755 |
| }, |
| { |
| "wall_m": 0.0028, |
| "foot_diameter_m": 0.06572, |
| "brimful_ml": 649.0372621268237 |
| }, |
| { |
| "wall_m": 0.0028, |
| "foot_diameter_m": 0.07572, |
| "brimful_ml": 649.037908326807 |
| }, |
| { |
| "wall_m": 0.0038, |
| "foot_diameter_m": 0.05572, |
| "brimful_ml": 642.0729028367343 |
| }, |
| { |
| "wall_m": 0.0038, |
| "foot_diameter_m": 0.06572, |
| "brimful_ml": 642.0810573154405 |
| }, |
| { |
| "wall_m": 0.0038, |
| "foot_diameter_m": 0.07572, |
| "brimful_ml": 642.0822429456761 |
| } |
| ], |
| "cup": [ |
| { |
| "wall_m": 0.0015, |
| "base_diameter_m": 0.046, |
| "brimful_ml": 258.4388522411851 |
| }, |
| { |
| "wall_m": 0.0015, |
| "base_diameter_m": 0.056, |
| "brimful_ml": 301.5557483699163 |
| }, |
| { |
| "wall_m": 0.0015, |
| "base_diameter_m": 0.066, |
| "brimful_ml": 349.5512678813714 |
| }, |
| { |
| "wall_m": 0.0025, |
| "base_diameter_m": 0.046, |
| "brimful_ml": 241.3722666684001 |
| }, |
| { |
| "wall_m": 0.0025, |
| "base_diameter_m": 0.056, |
| "brimful_ml": 282.8328549552714 |
| }, |
| { |
| "wall_m": 0.0025, |
| "base_diameter_m": 0.066, |
| "brimful_ml": 329.11143925354605 |
| }, |
| { |
| "wall_m": 0.0035, |
| "base_diameter_m": 0.046, |
| "brimful_ml": 224.90949491120722 |
| }, |
| { |
| "wall_m": 0.0035, |
| "base_diameter_m": 0.056, |
| "brimful_ml": 264.7256918412804 |
| }, |
| { |
| "wall_m": 0.0035, |
| "base_diameter_m": 0.066, |
| "brimful_ml": 309.3022513752946 |
| } |
| ] |
| }, |
| "checks": { |
| "plate": { |
| "profile": { |
| "simple_polygon": true, |
| "polygon_crossings": 0, |
| "inner_z_monotone": true, |
| "min_wall_m": 0.003499779115352699, |
| "min_wall_ok": true, |
| "rim_flat_m": 0.0010499999999999954, |
| "rim_flat_ok": true |
| }, |
| "mesh": { |
| "closed_and_oriented": true, |
| "unit_normals": true, |
| "min_face_area_m2": 9.381313778810852e-07, |
| "material_volume_ml": 206.65463718324625, |
| "points": 8642, |
| "triangles": 17280 |
| }, |
| "collision": { |
| "cavity_probes_open": true, |
| "axis_open": true, |
| "mid_radius_open": true, |
| "foot_solid": true, |
| "floor_solid": true, |
| "max_cavity_intrusion_m": 0.00059054604753281, |
| "intrusion_ok": true, |
| "min_piece_volume_m3": 8.144183095406643e-08, |
| "pieces": 192, |
| "max_collider_radius_m": 0.11430000000053404, |
| "crest_radius_m": 0.11430000000000001, |
| "no_protrusion": true |
| }, |
| "dimensions": { |
| "target_size_m": [ |
| 0.2286, |
| 0.2286, |
| 0.04 |
| ], |
| "actual_size_m": [ |
| 0.22860000000000003, |
| 0.22860000000000003, |
| 0.040000000000000015 |
| ], |
| "size_error_m": [ |
| 2.7755575615628914e-17, |
| 2.7755575615628914e-17, |
| 1.3877787807814457e-17 |
| ], |
| "min_z_m": -1.3877787807814457e-17, |
| "ok": true |
| }, |
| "all_ok": true |
| }, |
| "bowl": { |
| "profile": { |
| "simple_polygon": true, |
| "polygon_crossings": 0, |
| "inner_z_monotone": true, |
| "min_wall_m": 0.002222381631723583, |
| "min_wall_ok": true, |
| "rim_flat_m": 0.002799999999999997, |
| "rim_flat_ok": true |
| }, |
| "mesh": { |
| "closed_and_oriented": true, |
| "unit_normals": true, |
| "min_face_area_m2": 3.760278917610129e-07, |
| "material_volume_ml": 89.53893006480381, |
| "points": 11330, |
| "triangles": 22656 |
| }, |
| "collision": { |
| "cavity_probes_open": true, |
| "axis_open": true, |
| "mid_radius_open": true, |
| "foot_solid": true, |
| "floor_solid": true, |
| "max_cavity_intrusion_m": 0.0006117476926037482, |
| "intrusion_ok": true, |
| "min_piece_volume_m3": 5.1841413226429175e-08, |
| "pieces": 192, |
| "max_collider_radius_m": 0.07226500000012662, |
| "crest_radius_m": 0.072265, |
| "no_protrusion": true |
| }, |
| "dimensions": { |
| "target_size_m": [ |
| 0.14453, |
| 0.14453, |
| 0.07312 |
| ], |
| "actual_size_m": [ |
| 0.14453, |
| 0.14453, |
| 0.07312 |
| ], |
| "size_error_m": [ |
| 0.0, |
| 0.0, |
| 0.0 |
| ], |
| "min_z_m": 0.0, |
| "ok": true |
| }, |
| "all_ok": true |
| }, |
| "cup": { |
| "profile": { |
| "simple_polygon": true, |
| "polygon_crossings": 0, |
| "inner_z_monotone": true, |
| "min_wall_m": 0.0024999999999999988, |
| "min_wall_ok": true, |
| "rim_flat_m": 0.0007500000000000007, |
| "rim_flat_ok": true |
| }, |
| "mesh": { |
| "closed_and_oriented": true, |
| "unit_normals": true, |
| "min_face_area_m2": 1.9821347971600218e-07, |
| "material_volume_ml": 54.94290984730846, |
| "points": 9218, |
| "triangles": 18432 |
| }, |
| "collision": { |
| "cavity_probes_open": true, |
| "axis_open": true, |
| "mid_radius_open": true, |
| "foot_solid": true, |
| "floor_solid": true, |
| "max_cavity_intrusion_m": 7.064235046341147e-05, |
| "intrusion_ok": true, |
| "min_piece_volume_m3": 1.8639778006154643e-08, |
| "pieces": 168, |
| "max_collider_radius_m": 0.03555000000040115, |
| "crest_radius_m": 0.03555, |
| "no_protrusion": true |
| }, |
| "dimensions": { |
| "target_size_m": [ |
| 0.0711, |
| 0.0711, |
| 0.1049 |
| ], |
| "actual_size_m": [ |
| 0.0711, |
| 0.0711, |
| 0.1049 |
| ], |
| "size_error_m": [ |
| 0.0, |
| 0.0, |
| 0.0 |
| ], |
| "min_z_m": 0.0, |
| "ok": true |
| }, |
| "all_ok": true |
| } |
| } |
| } |
|
|
