{"product_id":"4-cylinder-flat-engine-23-page-template","title":"4-Cylinder Flat Engine (23-Page Template)","description":"\u003cp data-start=\"128\" data-end=\"234\"\u003e\u003cstrong data-start=\"128\" data-end=\"234\"\u003eBuild a Working Paper 4-Cylinder Flat Engine – Compressed Air Powered! (23-Page Downloadable Template)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"236\" data-end=\"426\"\u003eBring engineering to life with this \u003cstrong data-start=\"272\" data-end=\"302\"\u003e23-page printable template\u003c\/strong\u003e that lets you build a fully functional \u003cstrong data-start=\"342\" data-end=\"408\"\u003e4-cylinder flat (boxer) engine model powered by compressed air\u003c\/strong\u003e – all from paper!\u003c\/p\u003e\n\u003cp data-start=\"428\" data-end=\"448\"\u003e🔩 \u003cstrong data-start=\"431\" data-end=\"448\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"449\" data-end=\"838\"\u003e\n\u003cli data-start=\"449\" data-end=\"549\"\u003e\n\u003cp data-start=\"451\" data-end=\"549\"\u003e\u003cstrong data-start=\"451\" data-end=\"478\"\u003eRealistic engine layout\u003c\/strong\u003e – replicates the mechanics of a horizontally opposed 4-cylinder engine\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"550\" data-end=\"654\"\u003e\n\u003cp data-start=\"552\" data-end=\"654\"\u003e\u003cstrong data-start=\"552\" data-end=\"581\"\u003ePowered by compressed air\u003c\/strong\u003e – watch the pistons move automatically using a small air pump or balloon\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"655\" data-end=\"752\"\u003e\n\u003cp data-start=\"657\" data-end=\"752\"\u003e\u003cstrong data-start=\"657\" data-end=\"682\"\u003ePrecision paper parts\u003c\/strong\u003e – includes crankshaft, pistons, cylinders, valve motion, and flywheel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"753\" data-end=\"793\"\u003e\n\u003cp data-start=\"755\" data-end=\"793\"\u003e\u003cstrong data-start=\"755\" data-end=\"793\"\u003eFully printable on A4\/Letter paper\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Paper Engine Kits","offers":[{"title":"Default Title","offer_id":46485417853149,"sku":"","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/4424\/9053\/files\/Screenshot2025-06-11at3.16.24AM.png?v=1749626412","url":"https:\/\/paperenginekits.com\/products\/4-cylinder-flat-engine-23-page-template","provider":"Paper Engine Kits","version":"1.0","type":"link"}