Oscillating Steam (Air) Engine - 1941 Popular Mechanics Magazine

prusaprinters

<p>In April of 1941 Popular Science Magazine had an article on how to build an oscillating steam engine. This model is a reproduction of that engine using the part details in the article. I tried to stay true to the parts in almost all aspects. Some things were altered to allow 3D printing.</p> <p>This model has a reversing lever that redirects the air flow to enable CW and CCW rotation.</p> <p>While originally designed out of metal for use with steam, this engine runs on compressed air. Please don't try steam. It is a very leaky design.</p> <p>This engine is running around 1500-1600 RPM.</p> <p>Build Details:</p> <ol> <li>While the Assembly list calls out 8 mm screws. 6 mm should work in most places, especially the cylinder heads. Item 3 12 mm screw can be shorter.</li> <li>Spring is 23/64 Dia x 1 3/8 Long</li> <li>IMPORTANT: Make sure you assemble the lower cylinder cover (12) to the Piston before assembling the piston crank. Attach with Super Glue.</li> <li>Assemble the Rocker Shaft (20) to the Cylinder(6) with Super Glue.</li> <li>The mating surfaces of the Cylinder(6), Reverser Plate(19) and Frame(9) need to be smooth.</li> <li><p>Parts 4 and 5 have been combined.<br/> Please let me know if you need more details or find any issues.</p> <p>Enjoy</p> <p>UPDATE: Added .step file of the assembly - 18 FEB 18</p> <p>Video of engine in motion<br/> <a href="https://www.youtube.com/watch?v=K9ak1Hcorfg">https://www.youtube.com/watch?v=K9ak1Hcorfg</a><br/> Video of engine in slow motion.<br/> <figure class="media"> <oembed url="https://www.youtube.com/watch?v=iP8OPRIgomE"></oembed> </figure> </p> <p>Link to Original Article<br/> <a href="https://books.google.com/books?id=iycDAAAAMBAJ&amp;lpg=PP1&amp;dq=april+1941+popular+science&amp;pg=PA188&amp;hl=en#v=twopage&amp;q&amp;f=false">https://books.google.com/books?id=iycDAAAAMBAJ&amp;lpg=PP1&amp;dq=april+1941+popular+science&amp;pg=PA188&amp;hl=en#v=twopage&amp;q&amp;f=false</a></p> <p><a href="http://www.jefferyjensen.com/dw/engineer-mechanical/steamengines">http://www.jefferyjensen.com/dw/engineer-mechanical/steamengines</a> - About 1/2 way down the page.</p> </li> </ol> <h3>Print instructions</h3><p>Unassociated tags: popular science</p> <h3>Category: Models Print Settings</h3> <p><strong>Printer Brand:</strong> Printrbot</p> <p><strong>Printer:</strong> <a href="http://amzn.to/2DqOqq1">Simple Black</a></p> <p><strong>Infill:</strong> 100%</p>