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Dimensions were taken with caliper in hand so may have minor variations.\nAlong with the native Solidworks file, you can also find parasolid, iges and step formats as well as stl, amf and 3mf. \nPolygon file is also attached. \nCan be used for 3D printing.\n\n","imageAlt":"NGK Spark plug 3D printable model","url":"https://www.cgtrader.com/3d-print-models/hobby-diy/automotive/ngk-spark-plug","isCLDApplicable":false,"isSaleOffApplicable":true,"gaAttributes":{},"primaryImage":{"gridFallbackUrl":"https://media.cgtrader.com/variants/zBbpW5VjkSy22DVgdCoMTto5/a26e47dab5f2d22c43d6c5ce4b4b46ecc30c70918878397cba1a10c1e35d7bfc/Spark%20Plug_7.jpg","gridUrl":"https://media.cgtrader.com/variants/zBbpW5VjkSy22DVgdCoMTto5/78add9c2f02fbd73a43ffb3970be38683c5f15eff6ca849dc78c644f4ff9ce1b/Spark%20Plug_7.webp","isAdultContent":false},"modelInfo":{"modelUrl":"https://www.cgtrader.com/3d-print-models/hobby-diy/automotive/ngk-spark-plug","isCgtVerified":false,"types":{"printReady":true,"animated":false,"pbr":false,"rigged":false,"lowPoly":false}},"metaverseFormatsList":[{"id":59,"name":".sldprt","is_native":true},{"id":51,"name":".stl","is_native":false},{"id":29,"name":".ige","is_native":false},{"id":72,"name":".stp","is_native":false},{"id":12,"name":".obj","is_native":false}],"categorySlug":"hobby-diy","subcategorySlug":"automotive","categoryTitle":"Hobby \u0026 DIY","subcategoryTitle":"Automotive \u0026 Car parts","schemaImageUrl":"https://img-new.cgtrader.com/items/125111/74bb9d3c62/ngk-spark-plug-3d-model-74bb9d3c62.webp","saleOffDiscount":30,"eligibleForSubscription":true,"subscriptionSubscribed":true,"subscriptionPotential":false}},{"id":"2769928","type":"listingItem","attributes":{"id":2769928,"title":"2 Stroke Engine Model - 3D Printable","price":3.99,"description":"Hi everyone\nFirst of all i have a video about this project on my youtube channel. 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The main crankshaft and secondary (or eccentric lobe) will have the same offset, therefor if each crankshaft has a throw of two inches the pistons would then travel a total of four inches. The engine would have a minimum of two pistons, each set of opposing pistons are bolted together, making one solid unit. This engine would have opposing pistons similar to a Boxer engine configuration, with the exception that the pistons are directly across from one another. The cylinders and heads will work the same as they do in a conventional engine. The benefits of this design; There are no connecting rods. So the engine should be able to withstand much higher RPMs than a conventional engine. This design also insures that the pistons will stay in-line with the cylinders, and therefor reducing friction. There are also less moving parts, a 4-cylinder engine built using this design would have only 5 moving parts in the short block, as opposed to the 9 moving parts found in conventional 4-cylinder engines. Components; A. The crankshaft, a standard looking engine crankshaft, with the exception of the gear(s) permanently affixed to the rod journal, with teeth numbering x. The diameter of the gear(s) is equal to the throw of the main crankshaft or y. B. The secondary crankshaft, or eccentric lobe is round with an offset hole that the main crankshafts (A) rod journal rides in. C. The pistons, which when bolted together form one solid unit from piston to piston. . They have a hole in the middle where the main (A) and secondary (B) crankshaft ride. D. Ring gear(s), with teeth numbering 2x. The gear(s) that are affixed to the main crankshaft (A) ride inside this ring gear(s). The diameter or the ring gear(s) is equal to the throw of both crankshaft and eccentric lobe combined or (2y). 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