{ "motor_2020_length_mm": 145, "2020_longitudinal_limits_mm": [ -55, 90 ], "fan_envelope_mm": [ 120, 120, 25 ], "fan_mount_pitch_mm": 105, "fan_center_y_mm": 28, "motor_center_y_mm": 10, "fan_offset_from_motor_mm": 18, "rotation_deg": 2.0166030724839743, "fastener_centers": [ { "x": -50.6200576850888, "y": -26.31491286891918, "rail_center_x": -50.6200576850888, "distance_to_end_mm": 28.68508713108082 }, { "x": 50.6200576850888, "y": 82.31491286891918, "rail_center_x": 50.6200576850888, "distance_to_end_mm": 7.68508713108082 } ], "fan_collisions": [], "extension_collisions": [], "original_corners_unchanged": true, "fcstd_reopened": true, "step_valid": true, "assumptions": "Fan solid frame and holes schematic; no blade, hub, wires, real T-slot or nut. Shaft of screw only above extrusion surface." }