Engineer 3D Prints Entire Working Engine -- A Locomotive is Next

[matterest]

Hi Matt,

The cylinder block was printed in one piece (not counting the caps). I attached a zip of the files. Sorry it is so disorganized. I designed it in FreeCAD, so you can open the design file in that to see the assembly. The aluminum rod used for the crank shaft and vertical supports is 1/4", available at any hardware store. I believe the screws for the caps were 4-40 and the rest were 6-32. I'll be happy to answer any questions you have.

Geoffrey Schulz

thanks for uploading the files! now i just hope my printer is big enough.

[GSchulz]

thanks for uploading the files! now i just hope my printer is big enough.

I think the tallest part is about 3 1/4 inches, and the largest by area is the base, which is about 3" X 4 1/4". All the parts were designed to print without support material. The cylinder, valves and piston rod are designed to print vertically, all the rest will print horizontally. I have a 8" X 12" bed (Airwolf XL), so I can print the entire engine in one pass, but regardless of size, you should be able to print this. My son has a simple XYZ Jr and it will print on his machine.

[devoy]

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