{ "id": "MH02", "version": 1, "ms01_letter": "I", "spec": { "id": "MH02", "letter": "I", "slug": "6mm-round", "kind": "round", "diameter": 6.0, "clearance": 0.15, "seats": 4, "cells": 7, "handle_radius": 15.0, "handle_length": 105.0, "modules_requested": 2 }, "width_mm": 175.79999999999998, "cells": 7, "seats": 4, "seat_pitch_mm": 44.449999999999996, "seam_continuous_pitch": true, "peg_columns_x_mm": [ -76.19999999999999, 76.19999999999999 ], "projection_mm": 47.16879986478107, "seat_records": [ { "seat": 1, "x": 66.675, "seated_y": 39.370000000000005, "back_y": 36.35, "opening_diameter": 6.3 }, { "seat": 2, "x": 22.224999999999998, "seated_y": 39.370000000000005, "back_y": 36.35, "opening_diameter": 6.3 }, { "seat": 3, "x": -22.224999999999998, "seated_y": 39.370000000000005, "back_y": 36.35, "opening_diameter": 6.3 }, { "seat": 4, "x": -66.675, "seated_y": 39.370000000000005, "back_y": 36.35, "opening_diameter": 6.3 } ], "checks": [ { "seat": 1, "magnet_to_shaft_gap_mm": 1.019999999999999, "bearing_overlap_at_0p1_mm_mm3": 44.415468194385696, "lift_forward_overlap_mm3": 0.0, "loading_overlap_mm3": 0.0, "nominal_handle_gap_mm": 14.450000000000003, "thinnest_pocket_side_wall_mm": 16.024999999999995 }, { "seat": 2, "magnet_to_shaft_gap_mm": 1.019999999999999, "bearing_overlap_at_0p1_mm_mm3": 44.415468194386236, "lift_forward_overlap_mm3": 0.0, "loading_overlap_mm3": 0.0, "nominal_handle_gap_mm": 14.449999999999996, "thinnest_pocket_side_wall_mm": 34.05 }, { "seat": 3, "magnet_to_shaft_gap_mm": 1.019999999999999, "bearing_overlap_at_0p1_mm_mm3": 44.41546819438573, "lift_forward_overlap_mm3": 0.0, "loading_overlap_mm3": 0.0, "nominal_handle_gap_mm": 14.449999999999996, "thinnest_pocket_side_wall_mm": 34.05 }, { "seat": 4, "magnet_to_shaft_gap_mm": 1.019999999999999, "bearing_overlap_at_0p1_mm_mm3": 44.41546819438624, "lift_forward_overlap_mm3": 0.0, "loading_overlap_mm3": 0.0, "nominal_handle_gap_mm": 14.45000000000001, "thinnest_pocket_side_wall_mm": 16.024999999999995 } ], "mounts": [ { "board_side_difference_mm3": 0.0, "buried_overlap_mm": 1.25, "single_valid_solid": true, "peg_profile": { "config_sha256": "e586ab4ff6173c76e10c960ca707da94b01c615a629480d4bceeae71c80e2438", "canonical_source": "reference/peg-fit.scad", "variant": "rear-tongue-3p80-interference0p05", "board_grip_assumption_mm": 3.8, "source_board_assumption_mm": 3.94, "clearance_at_assumed_board_mm": -0.05, "predicted_clearance_at_3p94_board_mm": -0.1900000000000001, "tongue_run_mm": 5.0, "tongue_rise_mm": 3.3, "tongue_angle_deg": 33.4248111826038, "previous_tongue_angle_deg": 30.96375653207352, "elbow_center_y_mm": -2.578176717793985, "lower_locator": "Exact baseline lower locator, unchanged; designed for 3.94 mm board", "construction": "Canonical cylinder/sphere upper core and exact 120-degree cylindrical lower bearing segment. User-authorized parameter revision.", "scope": "Top-cap subtraction only. Seated assumed board band unchanged; same prescribed insertion poses cannot gain peg collisions. Removal path, hold force and adhesion remain unmeasured.", "baseline_sha256": "f030d59fc8130b57cfcb4367202cdd0e03a1c335850f33fa41d28e85eb623d96", "print_variant": "inverted-slope5-flat-v1", "print_variant_source": "reference/peg-print-variants.json", "print_variant_sha256": "6f2bef88debec1ce02f540f9319f86400b3335fee58705b0c671a5ddb1b22da7", "cap_removal_mm": 0.8, "cut_plane_z_mm": 5.314116293072424, "cut_plane_normal": [ 0.0, -0.08715574274765817, 0.9961946980917455 ], "cut_plane_normal_distance_mm": 5.29389447620171, "seat_slope_deg": 5.0, "bed_flat_area_mm2": 10.133539999805787, "bed_flat_width_mm": 3.5777087639996616, "removed_volume_mm3": 4.295987672381327, "removed_nearest_y_mm": -5.879843411056621, "assumed_board_back_y_mm": -3.8, "seated_board_band_change_mm3": 0.0, "peg_subset_of_canonical": true } }, { "board_side_difference_mm3": 0.0, "buried_overlap_mm": 1.25, "single_valid_solid": true, "peg_profile": { "config_sha256": "e586ab4ff6173c76e10c960ca707da94b01c615a629480d4bceeae71c80e2438", "canonical_source": "reference/peg-fit.scad", "variant": "rear-tongue-3p80-interference0p05", "board_grip_assumption_mm": 3.8, "source_board_assumption_mm": 3.94, "clearance_at_assumed_board_mm": -0.05, "predicted_clearance_at_3p94_board_mm": -0.1900000000000001, "tongue_run_mm": 5.0, "tongue_rise_mm": 3.3, "tongue_angle_deg": 33.4248111826038, "previous_tongue_angle_deg": 30.96375653207352, "elbow_center_y_mm": -2.578176717793985, "lower_locator": "Exact baseline lower locator, unchanged; designed for 3.94 mm board", "construction": "Canonical cylinder/sphere upper core and exact 120-degree cylindrical lower bearing segment. User-authorized parameter revision.", "scope": "Top-cap subtraction only. Seated assumed board band unchanged; same prescribed insertion poses cannot gain peg collisions. Removal path, hold force and adhesion remain unmeasured.", "baseline_sha256": "f030d59fc8130b57cfcb4367202cdd0e03a1c335850f33fa41d28e85eb623d96", "print_variant": "inverted-slope5-flat-v1", "print_variant_source": "reference/peg-print-variants.json", "print_variant_sha256": "6f2bef88debec1ce02f540f9319f86400b3335fee58705b0c671a5ddb1b22da7", "cap_removal_mm": 0.8, "cut_plane_z_mm": 5.314116293072424, "cut_plane_normal": [ 0.0, -0.08715574274765817, 0.9961946980917455 ], "cut_plane_normal_distance_mm": 5.29389447620171, "seat_slope_deg": 5.0, "bed_flat_area_mm2": 10.133539999805787, "bed_flat_width_mm": 3.5777087639996616, "removed_volume_mm3": 4.295987672381327, "removed_nearest_y_mm": -5.879843411056621, "assumed_board_back_y_mm": -3.8, "seated_board_band_change_mm3": 0.0, "peg_subset_of_canonical": true } } ], "files": { "installed": "part-mh02-magnetic-shaft-holder-6mm-round__v1__4-seats-7-cells__installed__fit-e586ab4ff6", "print-flat-top": "part-mh02-magnetic-shaft-holder-6mm-round__v1__4-seats-7-cells__print-flat-top__fit-e586ab4ff6", "pause-reference": "part-mh02-magnetic-shaft-holder-6mm-round__v1__4-seats-7-cells__pause-reference__fit-e586ab4ff6", "plug": "part-mh02-magnetic-shaft-holder-6mm-round__v1__4-seats-7-cells__plug-print-broad-face-quantity-4__fit-e586ab4ff6", "handles-reference": "part-mh02-magnetic-shaft-holder-6mm-round__v1__4-seats-7-cells__handles-reference__fit-e586ab4ff6", "shafts-reference": "part-mh02-magnetic-shaft-holder-6mm-round__v1__4-seats-7-cells__shafts-reference__fit-e586ab4ff6", "magnets-reference": "part-mh02-magnetic-shaft-holder-6mm-round__v1__4-seats-7-cells__magnets-reference__fit-e586ab4ff6", "plugs-installed-reference": "part-mh02-magnetic-shaft-holder-6mm-round__v1__4-seats-7-cells__plugs-installed-reference__fit-e586ab4ff6" }, "print_bounds_mm": [ 175.8, 54.147105983372214, 40.000000100000015 ], "bed_contact_area_mm2": 7536.499379485557, "magnet_mm": [ 20, 10, 3 ], "magnets": 4, "pause_height_mm": 38.0, "plug_mm": [ 10, 2.95, 14.0 ], "plug_recess_mm": 1.0, "local_to_print_offset_y_mm": -0.46315575257015906, "instructions": "Print the plugs first on their broad faces. Holder prints flat top down. Pause at geometric Z=38 mm, insert each magnet then its plug, resume to cap. Verify the pause layer in the slicer before use.", "qualification": "User-selected MS01 seat, unchanged sealed v2 pocket and canonical tight pegs. CAD solids, STEP round trips, lift/forward withdrawal with neighbours seated and pause loading checked. Handle envelopes are nominal. Not sliced, not printed; magnetic feel in this spacing untested." }