About this 3D model

A radial engine is an internal combustion engine configuration in which the cylinders radiate outward from a central housing like the spokes of a wheel. It resembles a stylized star when viewed from the front, and is called a "star engine" in some other languages. The radial configuration was commonly used for aircraft engines. Unlike most radial configurations which work with a master-and-articulating-rod assembly, this design uses offset piston rods which all attach to the same crankshaft pin. Printing and Assembly The parts should be printed on a smooth build plate. Avoid elephant foot and over-extrusion. I printed the model on my Prusa MINI with PLA+ filament, layer height 0.2 mm. Use glue where necessary. For assembled and exploded views, have a look at the .stl files in the “VIEWS” map. Printing and assembly in alphabetical order (A1 → E4). In the “OPTIONAL” map you find five .stl-files for your own preference. Printing tips are available for many parts. Dimension: 199 x 141 x 110 mm. Weight: 0.4 kg. Post-processing As always with mechanical models, be sure all moving parts run smoothly. I use files, sandpaper and sharp hobby knifes. A few drops of motor oil may help too. Pay special attention to seams on bearings and axles. Maybe you need a 5 mm drill to widen the valve guides. Metal parts Six coil springs are needed for the valves, 10 mm width x 15 mm height. Wire thickness 0.6 or 0.7 mm (AliExpress). Two short 4 mm scews or bolts are used to connect the model to the stand. “ To educate and entertain”