{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.saw","code":"thing-q125356","url":"https://ver.cy/models/thing/q125356/","name":"saw","alternateNames":["wood mill","mechanical saw","electric saw","treadle saw","wood saw","brushcutter","hand saw","sternal saw","ripsaw","miter saw","sawsaw","band saw"],"kind":"thing","status":"published","version":"0.2.0-wave.2","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.OBJ"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A cutting tool with a hard blade, disc or wire bearing teeth or an abrasive cutting surface, used to cut wood, metal, stone and other materials by moving the cutting element back and forth or continuously, in hand forms such as handsaws, hacksaws, coping saws and bow saws, and in powered forms such as circular saws, chainsaws, band saws, jigsaws, reciprocating saws, abrasive saws and sawmill machinery; saws are among the oldest tools and are subject to safety rules because of their hazards.","purpose":"Let an agent explain saws and their types and cutting principles, support choosing and using saws safely for tasks, describe sawmills and industrial sawing, and support tool history questions.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Toothed edge","Kerf","Hand or powered","Material-specific teeth"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What a saw is.","layers":[{"id":"types","name":"Types","description":"Types and principles.","findings":[{"id":"types-finding","name":"Types","description":"Types.","questions":[{"text":"What types of saws exist, and how do tooth shape, set and kerf determine cutting?","kind":"definition"},{"text":"Which entry fits a specific saw type?","kind":"action"}]}]},{"id":"materials","name":"Materials","description":"Saws by material.","findings":[{"id":"materials-finding","name":"Materials","description":"Materials.","questions":[{"text":"Which saws suit wood, metal, stone, plastics and other materials?","kind":"provenance"},{"text":"Which material is being cut?","kind":"boundary"}]}]}]},{"id":"use","name":"Use","description":"Using saws safely.","layers":[{"id":"choose","name":"Choose","description":"Choosing a saw.","findings":[{"id":"choose-finding","name":"Choose","description":"Choice.","questions":[{"text":"Which saw is appropriate for this task, and what technique gives a clean cut?","kind":"action"},{"text":"Which entry fits woodworking?","kind":"action"}]}]},{"id":"safety","name":"Safety","description":"Safety.","findings":[{"id":"safety-finding","name":"Safety","description":"Safety.","questions":[{"text":"What safety rules and protective equipment apply to powered saws, especially chainsaws and table saws?","kind":"provenance"},{"text":"Is an injury present now that needs medical care?","kind":"boundary"}]}]}]},{"id":"industry","name":"Industry","description":"Industrial sawing.","layers":[{"id":"sawmills","name":"Sawmills","description":"Sawmills.","findings":[{"id":"sawmills-finding","name":"Sawmills","description":"Sawmills.","questions":[{"text":"How do sawmills convert logs to timber, and how have they developed?","kind":"provenance"},{"text":"Which entry fits sawmills?","kind":"action"}]}]},{"id":"maintenance","name":"Maintenance","description":"Maintenance.","findings":[{"id":"maintenance-finding","name":"Maintenance","description":"Maintenance.","questions":[{"text":"How are saw blades sharpened, set and maintained?","kind":"action"},{"text":"Which entry fits tool maintenance?","kind":"action"}]}]}]},{"id":"learn","name":"Learn","description":"History and teaching.","layers":[{"id":"history","name":"History","description":"History.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How did saws develop from ancient flint and copper saws to modern power tools?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"teach","name":"Teach","description":"Teaching.","findings":[{"id":"teach-finding","name":"Teach","description":"Teaching.","questions":[{"text":"How can saw use be taught safely in workshops?","kind":"action"},{"text":"Which misconceptions arise?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Identify types of saw and explain what each is for.","Operate a saw it is authorized to use with guards in place and people kept clear."],"mustNot":["Remove or disable blade guards, brakes or emergency stops.","Operate a power saw near people who are not protected or trained.","Use a saw to cut into walls or floors without checking for hidden cables and pipes.","Hand a saw to a child or untrained person to use unsupervised.","Clear a jam in a power saw unless it is stopped and safely isolated from its energy sources."],"requiresHuman":["Felling trees or cutting structural members with a saw requires human involvement.","Clearing a jam in a stopped and safely isolated power saw requires human involvement."]},"ethics":{"considerations":["Saws cause severe cuts and amputations.","Felling and demolition with saws can endanger people nearby."],"affectedParties":["Operators","Bystanders","Children in workshops"]},"owners":{"steward":"The person who keeps it; workplace safety authorities set rules for power saws.","roles":[],"masterSystems":[]},"relations":[{"target":"Q1760958","type":"parent","note":"registry parent class"},{"target":"cutting tool","type":"related","note":"category"},{"target":"woody plant","type":"related","note":"wood cut by saws"},{"target":"friction","type":"related","note":"heat and wear in cutting"},{"target":"blacksmith","type":"related","note":"makers of early saw blades"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.saw","Wikidata: Q125356 (https://www.wikidata.org/wiki/Q125356)"]},"properties":{"applicability":"required","items":["Cutting element thickness:  mm - Thickness is measured across the blade body or wire cross-section and distinguished from the width swept by its teeth.","Tooth pitch:  mm - Pitch is measured between corresponding points on adjacent teeth and may vary along the cutting element.","Kerf width:  mm - Kerf width is measured across the resulting cut and depends on tooth geometry, alignment and cutting conditions.","Tool mass:  kg - Mass is measured for the specified tool configuration, including its fitted blade and any installed power source."]},"recognition":{"applicability":"required","items":["Toothed blade cutting by reciprocating or continuous motion","Hand saws and powered saws","Knives cut without teeth; brushcutters use rotating blades or line, not saw teeth","Blades with toothed edges, handheld or in machines."]},"capabilities":{"applicability":"required","items":["explain types and principles","support safe selection and use","describe industrial sawing","support history questions"]},"hazards":{"applicability":"required","items":["Serious injury from powered saws","Kickback","Dust and noise exposure"]},"interfaces":{"applicability":"required","items":["Power tool safety standards","Occupational safety rules for sawmills and chainsaws","Blade specifications"]},"context":{"applicability":"required","items":["Toothed cutting tools.","handsaws and backsaws","hacksaws and metal-cutting saws","circular and table saws","chainsaws","band saws, jigsaws and sawmill saws"]}},"sources":[{"title":"Wikidata item Q125356: saw","url":"https://www.wikidata.org/wiki/Q125356","note":"identity and sense of the item"},{"title":"Wikipedia: Saw","url":"https://en.wikipedia.org/wiki/Saw","note":"general description of the item"}],"openQuestions":["Should chainsaws be a separate entry?","How should safety standards be linked?","How should tool history resources be linked?"],"resources":{"spec":"/models/things/publications/thing-q125356/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q125356/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T05:15:26Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T12:16:28+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}