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High-precicion original STEP + IGES + X_B native version available for professional and manufacturing version available here: https://www.cgtrader.com/3d-models/aircraft/military-aircraft/modern-warfare-uav-type-009-atomic-reaper-iges-and-3mf-included\n\n--- \n\n# Fuselage Monocoque Test Jig for RC Aircraft Drag and Load using HX-711 Load Cell\n\nThis is a structural test fixture designed to help evaluate the stiffness and load-bearing performance of RC fuselage monocoque shells.\nAs RC builders experiment with thinner skins, composite layering, and lightweight internal frames, having a dedicated jig for repeatable testing becomes incredibly useful.\n\nThe jig provides a stable mounting base to test bending, torsional rigidity, compression strength, and skin-frame interactions. 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Perfect for both digital and physical mechanical design projects.\n\n\n**Gear specifications:**\n\n- 16-Tooth, round bore with keyway (1.00in pitch diameter, 25.4mm reference diameter)\n\n\nGear tooth profile is precisely modeled with accurate arc-based geometry and a small amount of backlash to ensure proper engagement. Gear can be used as drive gear (rotationally locked to shaft) or idle gear (free spinning about shaft).\n\nGear is provided with a diametrical pitch of 16 teeth/inch (module 1.6). Gear bore is designed for a 0.25in (6.35mm) nominal shaft size. Gear has a 0.25in (6.35mm) face width. Gear can be easily scaled to create any diametrical pitch or module that you may need.\n\nThe centerline distance between any two mating gears is ( First Gear Pitch Diameter + Second Gear Pitch Diameter ) / 2.\n\n\n**Gear is provided in 8 file formats:**\n\n- STP (general solid model format for CAD)\n- SAT (general solid model format for CAD)\n- IGS (general solid model format for CAD)\n- OBJ (general surface model format for CGI)\n- FBX (general surface model format for CGI)\n- 3DS (general surface model format for CGI)\n- CAR (Carrara Studio format for CGI))\n- STL (general surface model format for 3D print)\n\nProduct also includes 2 drawings (DWG and PDF formats) and a Read Me text file (TXT format) detailing the physical dimensions of the gear.\n\n\n**Want more gears that are compatible with this product? Download additional gear collections:**\n\n- Assorted Gear Collection 01 - https://www.cgtrader.com/3d-print-models/hobby-diy/mechanical-parts/ultimate-gear-collection\n- Spur Gear Collection 01 - https://www.cgtrader.com/3d-print-models/hobby-diy/mechanical-parts/spur-gear-collection\n- Planetary Gear Collection 01 - https://www.cgtrader.com/3d-print-models/hobby-diy/mechanical-parts/planetary-gear-collection\n- Gear Accessory Collection 01 - https://www.cgtrader.com/3d-print-models/hobby-diy/mechanical-parts/gear-accessory-collection\n\n\n_CBSpicer_","imageAlt":"16-Tooth Spur Gear 01 3D printable model mechanical","url":"https://www.cgtrader.com/free-3d-print-models/hobby-diy/mechanical-parts/16-tooth-spur-gear-01","isCLDApplicable":false,"isSaleOffApplicable":false,"gaAttributes":{},"primaryImage":{"gridFallbackUrl":"https://media.cgtrader.com/variants/4VJ8dMwcUy2BWBfcEHbyR4zc/a26e47dab5f2d22c43d6c5ce4b4b46ecc30c70918878397cba1a10c1e35d7bfc/_Gear_Spur_16T_Keyway_Iso.jpg","gridUrl":"https://media.cgtrader.com/variants/4VJ8dMwcUy2BWBfcEHbyR4zc/78add9c2f02fbd73a43ffb3970be38683c5f15eff6ca849dc78c644f4ff9ce1b/_Gear_Spur_16T_Keyway_Iso.webp","isAdultContent":false},"modelInfo":{"modelUrl":"https://www.cgtrader.com/free-3d-print-models/hobby-diy/mechanical-parts/16-tooth-spur-gear-01","isCgtVerified":false,"types":{"printReady":true,"animated":false,"pbr":false,"rigged":false,"lowPoly":false}},"metaverseFormatsList":[{"id":29,"name":".ige","is_native":false},{"id":147,"name":".sat","is_native":false},{"id":51,"name":".stl","is_native":false},{"id":72,"name":".stp","is_native":false},{"id":12,"name":".obj","is_native":false},{"id":5,"name":".fbx","is_native":false},{"id":2,"name":".3ds","is_native":false},{"id":100,"name":".pdf","is_native":false},{"id":4,"name":".dwg","is_native":false}],"categorySlug":"hobby-diy","subcategorySlug":"mechanical-parts","categoryTitle":"Hobby \u0026 DIY","subcategoryTitle":"Mechanical parts","schemaImageUrl":"https://img-new.cgtrader.com/items/2438755/3a384e5012/16-tooth-spur-gear-01-3d-model-3a384e5012.webp","saleOffDiscount":0,"eligibleForSubscription":false,"subscriptionSubscribed":false,"subscriptionPotential":false,"subscriptionTierBand":null}},{"id":"6744263","type":"listingItem","attributes":{"id":6744263,"title":"Chancadora primaria modelo tecnico modular","price":12.0,"description":"This 3D model represents a conceptual primary crusher designed as a scale, fully 3D-printable technical model for educational, demonstrative, and display purposes. 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We'll also provide tips and tricks to make your workflow more efficient.\n\nDon't forget to subscribe to our channel for more CATIA exercises and tutorials. If you have any questions or specific topics you'd like us to cover in future videos, please leave a comment below and use the hashtag #CATIA200Exercises.\n\nJoin us in mastering CATIA  and expanding your 3D modeling and design capabilities. 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I created an extremely realistic model of the Orion structure with all of its associated panels and heat shield! There are 17 files / parts here in total, which will definitely be an incredible experience printing, painting and assembling.  Luckily, there is a TON of reference material out there (see my last few pictures for an example) so that you can create the best scale model of this amazing spacecraft.  \n\nHave fun printing this one! 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This is mandatory to ensure the part doesn't snap under torsional stress when twisting the lock.\n\nSupports: Tree Supports under the round shaft.\n\nStrength: Use 100% infill or max out the perimeters (8-10 walls) to make the key practically solid. A Brim is highly recommended to prevent bed detachment.\n\nEngineering Assembly Tip:\nRight off the build plate, the mechanism might feel a bit tight. Apply a tiny drop of silicone lubricant to the locking lugs of the T-key and twist it inside the mount 10-15 times. The plastic will break in perfectly to the internal grooves!\n\nExplore My Profile!\nIf you like this design, check out my profile for more high-quality 3D-printable accessories and educational toys! Don't miss my Professional TIG Welding Torch WP26 Style Engineering Accuracy . 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Dimensionally this is very similar to our MKII feeder, but performance wise it is miles ahead. If you are thinking about using one of these printed feeders for a practical application, then this is the one for you!\n\nInstead of using a DC motor, this one uses a Nema17 stepper motor for excitation. This makes tuning the amplitude and frequency of the bowl a much simpler and more reliable process.\n\nThis bundle includes all of the STL files, as well as the original SolidWorks files and STEP files in case you want to reverse engineer anything. You get all of the final release files, as well as a few developmental and alternate bowl styles. This was printed in ABS material for it's favorable wear characteristics and springiness, but any similar polymer should work well. \n\nAssembly is reasonably straightforward, with most parts simply cliping together. 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It can actually be cobbled together using off the shelf parts if you don't have access to a lathe to make a solid one.\n\nThe parts I use are;\nStepper Motor - 17HS4401-DBX (40mm length, 5mm shaft diameter)\nDriver - TB6600\nFor the rigid coupling, you can use a 3d printer \"soldid coupling, 5mm to 8mm\" (the coupling used to attach the 8mm lead screw to the stepper motor).\n\nYou can find our other projects, or else get in touch using the links below;\n\nhttp://www.vikingmachinery.co.nz\n\nInstagram; vikingmachinery\n\nhttps://www.facebook.com/VikingMachineryNZ/","imageAlt":"MKIII 3D Printed Vibrating Bowl Feeder - Full Release","url":"https://www.cgtrader.com/3d-print-models/hobby-diy/mechanical-parts/mkiii-3d-printed-vibrating-bowl-feeder-full-release","isCLDApplicable":false,"isSaleOffApplicable":false,"gaAttributes":{},"primaryImage":{"gridFallbackUrl":"https://media.cgtrader.com/variants/hvThidgoFzEKpuzm5g1MY8im/a26e47dab5f2d22c43d6c5ce4b4b46ecc30c70918878397cba1a10c1e35d7bfc/IMG_4029.jpg","gridUrl":"https://media.cgtrader.com/variants/hvThidgoFzEKpuzm5g1MY8im/78add9c2f02fbd73a43ffb3970be38683c5f15eff6ca849dc78c644f4ff9ce1b/IMG_4029.webp","isAdultContent":false},"modelInfo":{"modelUrl":"https://www.cgtrader.com/3d-print-models/hobby-diy/mechanical-parts/mkiii-3d-printed-vibrating-bowl-feeder-full-release","isCgtVerified":true,"types":{"printReady":true,"animated":false,"pbr":false,"rigged":false,"lowPoly":false}},"metaverseFormatsList":[{"id":51,"name":".stl","is_native":false},{"id":129,"name":".3mf","is_native":false},{"id":100,"name":".pdf","is_native":false},{"id":59,"name":".sldprt","is_native":false},{"id":216,"name":".jpg","is_native":false},{"id":null,"name":null,"is_native":false}],"categorySlug":"hobby-diy","subcategorySlug":"mechanical-parts","categoryTitle":"Hobby \u0026 DIY","subcategoryTitle":"Mechanical parts","schemaImageUrl":"https://img-new.cgtrader.com/items/2009857/f41e826440/mkiii-3d-printed-vibrating-bowl-feeder-full-release-3d-model-f41e826440.webp","saleOffDiscount":0,"eligibleForSubscription":false,"subscriptionSubscribed":false,"subscriptionPotential":false,"subscriptionTierBand":null}},{"id":"2578624","type":"listingItem","attributes":{"id":2578624,"title":"Ender 6 replacement parts","price":0.0,"description":"**Summary:**\n\nContains four replacement elements for Ender 6:\n\nZ-axis bracket: maintains Z-axis vibrationless\n\nExtruder housing: lightweight replacement to make gantry lighter and reduce ringing\n\nX-axis spring-squeeze roller plate: reduces wear on rollers, less damping on stepper motion.\n20mm long conical M5 screws and original rollers used.\n\nY-axis spring-squeeze roller plates (print two).\n20mm long conical M5 screws and original rollers used.\n\nOverall, replacement reduces gantry weight by about 170 gram.\n\n**Post printing:**\n\nClean the main contact surfaces with a file, removing any loose/hanging threading\n\nRoller plates have no threading printed, use M5 thread cutter for a fine, precise threading.\n\nNote that gantry may not be precisely mounted from factory, spacing material between plates and the U-pieces might be needed, or full detachment and realignment of parts, which is a riskier proposition.\n\nFor the X-axis plate, the two CoreXY band ends are a bit in the way and should be pulled back with two small zip ties. To mount the part into the big holes, use two lock nuts with the plastic ground out with a thread cutter, and screw them on REVERSED. 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I have been working for months to model one of my all time favorite Formula 1 engines! This is the turbocharged V6 that propelled the legendary Ayrton Senna and his MP4-4 to a Formula 1 championship in 1988. That car, and this engine, are often decribed and thought of as the most dominant combination in Formula 1 history.  The engine itself has two set of large turbochargers, which are included in the model in very high detail. THe model includes intake and risers, exhaust manifolds and a high detailed clutch assembly. All parts are means to fit nicely together and assembly should be quite easy. It will then be ready for painting and displaying.  In case you do want to print it at once, I have also included an STL file which has the whole engine put together. \n\nThe model itself features 16 different parts. It is modeled at approximately a 1/12 scale at the moment, but can be scaled to whatever your printer can handle. I am working on printing my own at about 1/8 scale right now and it looks awesome so far (I will update this model with pictures once I am done).  All parts are individually labeled and are in STL format, which is compatible with most 3D printing software packages.    All the parts are designed for easy fit and finish in mind. \n\nHappy printing, happy modeling and happy painting! 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Pour être clair, par « transformable » j’entends que vous pouvez assembler manuellement différentes pièces afin de créer plusieurs types de robots — comme un chien, un scorpion, un serpent, etc. — et non une transformation automatique entre les modes.\nJ’ai également conçu d’autres modèles que vous pouvez découvrir sur ma chaîne.\nJe vous serais très reconnaissant de vous abonner à ma chaîne YouTube : **irextmandan**.\n\n---\n\n**Arabic (العربية):**\nأنا أمير أكبرى، مهندس شغوف جداً بصناعة النماذج الروبوتية.\nالنموذج الذي صممته هو روبوت متحول. وللتوضيح: المقصود بكلمة \"متحول\" هو إمكانية تركيب الأجزاء المختلفة يدوياً لصنع نماذج روبوت متعددة مثل كلب أو عقرب أو ثعبان وغيرها، وليس التحول التلقائي بين الأوضاع.\nلقد صنعت أيضاً نماذج أخرى متنوعة يمكنكم مشاهدتها على القناة.\nسأكون ممتناً جداً إذا اشتركتم في قناتي على يوتيوب: **irextmandan**.\n\n---\n\n**Persian (فارسی):**\nمن امیر اکبری هستم، مهندسی که علاقه‌ زیادی به ساخت مدل‌های رباتیک دارد.\nمدلی که طراحی کرده‌ام یک ربات «تبدیل‌شونده» است. البته منظورم از تبدیل‌شونده این است که می‌توانید با اتصال دستی قطعات مختلف به یکدیگر، ربات‌های گوناگونی مانند سگ، عقرب، مار و … بسازید، نه اینکه ربات به‌طور خودکار بین حالت‌ها تغییر کند.\nهمچنین نمونه‌های دیگری هم ساخته‌ام که می‌توانید آن‌ها را در کانال مشاهده کنید.\nاز شما بسیار سپاسگزار می‌شوم اگر در کانال یوتیوب من با نام **irextmandan** عضو شوید.\n","imageAlt":"Puzzle Transforming Robot 3D print model","url":"https://www.cgtrader.com/free-3d-print-models/science/engineering/puzzle-transforming-robot","isCLDApplicable":false,"isSaleOffApplicable":false,"gaAttributes":{},"primaryImage":{"gridFallbackUrl":"https://media.cgtrader.com/variants/c5yut2u7xjeqtnem55p52iuluogf/a26e47dab5f2d22c43d6c5ce4b4b46ecc30c70918878397cba1a10c1e35d7bfc/01.jpg","gridUrl":"https://media.cgtrader.com/variants/c5yut2u7xjeqtnem55p52iuluogf/78add9c2f02fbd73a43ffb3970be38683c5f15eff6ca849dc78c644f4ff9ce1b/01.webp","isAdultContent":false},"modelInfo":{"modelUrl":"https://www.cgtrader.com/free-3d-print-models/science/engineering/puzzle-transforming-robot","isCgtVerified":false,"types":{"printReady":true,"animated":false,"pbr":false,"rigged":false,"lowPoly":false}},"metaverseFormatsList":[{"id":51,"name":".stl","is_native":false}],"categorySlug":"science","subcategorySlug":"engineering","categoryTitle":"Science","subcategoryTitle":"Engineering","schemaImageUrl":"https://img-new.cgtrader.com/items/6474117/36f43f6d0b/puzzle-transforming-robot-3d-model-36f43f6d0b.webp","saleOffDiscount":0,"eligibleForSubscription":false,"subscriptionSubscribed":false,"subscriptionPotential":false,"subscriptionTierBand":null}},{"id":"5598551","type":"listingItem","attributes":{"id":5598551,"title":"Motorcycle Triple Clamp","price":46.0,"description":"**Motorcycle Triple Clamp**\n\n- 3D Printable miniature prototype Model\n- Useful for product demonstration, R\u0026D and marketing\n- Can be used as source file for AR/VR Projects\n- Units - mm\n- Poly Count - 39428\n- Boundary Size - 152 , 65 , 10 mm\n- 3D Print Material Volume  - 36585 mm^3","imageAlt":"Motorcycle Triple Clamp 3D print model","url":"https://www.cgtrader.com/3d-print-models/science/engineering/motorcycle-triple-clamp","isCLDApplicable":false,"isSaleOffApplicable":true,"gaAttributes":{},"primaryImage":{"gridFallbackUrl":"https://media.cgtrader.com/variants/ySRDz7z928Q3ADSFj88PsYju/a26e47dab5f2d22c43d6c5ce4b4b46ecc30c70918878397cba1a10c1e35d7bfc/Motorcycle_Triple_Clamp_V1.jpg","gridUrl":"https://media.cgtrader.com/variants/ySRDz7z928Q3ADSFj88PsYju/78add9c2f02fbd73a43ffb3970be38683c5f15eff6ca849dc78c644f4ff9ce1b/Motorcycle_Triple_Clamp_V1.webp","isAdultContent":false},"modelInfo":{"modelUrl":"https://www.cgtrader.com/3d-print-models/science/engineering/motorcycle-triple-clamp","isCgtVerified":false,"types":{"printReady":true,"animated":false,"pbr":false,"rigged":false,"lowPoly":false}},"metaverseFormatsList":[{"id":129,"name":".3mf","is_native":false},{"id":51,"name":".stl","is_native":false},{"id":72,"name":".stp","is_native":false}],"categorySlug":"science","subcategorySlug":"engineering","categoryTitle":"Science","subcategoryTitle":"Engineering","schemaImageUrl":"https://img-new.cgtrader.com/items/5598551/907df05300/motorcycle-triple-clamp-3d-model-907df05300.webp","saleOffDiscount":30,"eligibleForSubscription":true,"subscriptionSubscribed":true,"subscriptionPotential":false,"subscriptionTierBand":"premium"}},{"id":"5123677","type":"listingItem","attributes":{"id":5123677,"title":"ship propeller 38mm","price":0.0,"description":"I made a propeller for a 3D printed jet boat some time ago. 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Print Time: ~45 minutes (using a Creality Ender-3 V3 KE).\n\n■ ABOUT BITKOBAN\nBitkoban is an engineering-driven design studio focused on functional 3D printing. 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