Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2492963.

This is a sliding valve air/steam engine. It was inspired by https://www.thingiverse.com/thing:34701 and built off of my Wobbler 2.0 components.

This engine uses 2 608ZZ Bearings. There is a detailed bill of materials in the engine.pdf file.

25 JAN 18 - Update: Added orientation picture. To my best recollection this is how i oriented the parts for printing. Note: I did not print them all in one shot like shown....

27 AUG 17 - Update: Slider_3 works very well. Achieved 2700 RPM.

26 AUG 17 - Update: Per a comment from +Holzmichel two other sliders have been added. Both of these are experimental as I have not tried them yet. However I believe they will increase performance. .step files are included if you would like to modify.

UPDATE: Added crank_asm.pdf to help clarify assembly of the eccentric.

The engine in action.
https://www.youtube.com/watch?v=Di-A5i6XyD0

I've attached a .step file of the assembly if you would like to remix or improve.

Please let me know if you have questions, suggestions or parts need fixed.

Thanks!