3D Printable Jet Engine

thingiverse

A model of a high bypass turbofan that features two spools was created from scratch, taking visual cues from existing engines such as those made by Rolls-Royce. The resemblance to these engines is intentional and results in an attractive design. The model was showcased on SolidSmack, where it gained attention for its custom support structures used throughout the engine's components. These supports are integrated into the parts where necessary, replacing the typical grid-like support structures provided by slicers. However, certain parts such as the fan stator casing still require normal supports that need to be applied in the slicer. To accommodate printers with varying build volumes, parts were designed to fit within an 8x10x8 space. Cut-in-half versions of the largest components are available for smaller printers at the bottom of the file list, identified by the word "cut" in their names. Each component was designed with a specific printing orientation in mind and should be printed accordingly, as referenced in the diagram labeled "Individual Components with Orientations.zip". The order of assembly is crucial due to the concentric fit of many components. A bill of materials (BOM) or parts list has been provided for reference. Unsectioned versions of certain parts were uploaded after popular demand, containing custom supports and contained within "Unsectioned Parts With Supports.zip". The file list is organized to separate between parts with and without custom supports. Please refer to the BOM for tracking which components need to be printed. Several non-printed hardware items were used in this model, including fasteners such as screws, washers, and nuts, as well as ball bearings. The following are listed below along with their sources: Metric machine screw, stainless steel 18-8, 2.5mm x 0.45mm x 10mm (1 bag of 100) can be found at https://www.boltdepot.com/Product-Details.aspx?product=6372 Metric flat washer, stainless steel 18-8, 2.5mm (2 bags of 100) can be purchased at https://www.boltdepot.com/Product-Details.aspx?product=7365 Metric hex nut, stainless steel 18-8, 2.5mm x 0.45mm (1 bag of 100) is available at https://www.boltdepot.com/Product-Details.aspx?product=7363 6204 open ball bearing 20x47x14 (quantity 2) can be found on Amazon at http://www.amazon.com/6204-Bearing-20x47x14-Open-Bearings/dp/B00IK4MCC2/ref=sr_1_106?srs=3445389011&ie=UTF8&qid=1462587921&sr=8-106 6003 open ball bearing 17x35x10 (quantity 2) can be purchased on Amazon at https://www.amazon.com/6003-Bearing-Deep-Groove-Bearings/dp/B00FNU80CC This model was printed on a Makergear M2, which might not optimize the gaps and clearances designed into the model for your printer. If you encounter issues with fit or clearance, please notify me so I can adjust the design accordingly. To ensure smooth operation of the engine, make sure your printer axes are as perpendicular as possible to prevent wobbling and scraping during printing.