{"commands": [
 {"command": "sheet.manage_rules", "params": {"name": "Steel 2mm", "thickness": "2 mm", "bend_radius": "2 mm", "k_factor": "0.4", "active": true}},
 {"command": "solid.box", "params": {"length": 120, "width": 80, "height": 30, "body_name": "Tray"}},
 {"command": "solid.shell", "params": {"faces": [[60, 40, 30]], "thickness": 2}},
 {"command": "sheet.convert", "params": {"body": "Tray", "face": [60, 40, 2], "bends": [[60, 2, 2], [118, 40, 2], [60, 78, 2], [2, 40, 2]]}}
]}