Monday , December 22 2014
Recent Articles
Home > Engines > Free Metalworking Project Plans: A Simple Two Stroke IC Engine

Free Metalworking Project Plans: A Simple Two Stroke IC Engine

Material: Steel or Aluminum
Units: (in)

Here’s a set of plans for a nifty little two stroke engine submitted by Shane W., a sophomore studying Mechanical Engineering at the University of North Carolina at Charlotte.

Here’s what Shane had to say about his project:

“This is a two stroke internal combustion engine that I designed for a design class. Though the design is unique and engineered by me, much inspiration was taken from an engine from the 50’s called “The Little Dragon.”

Engines are not exactly simple to make or design, but this one is designed to be as easy as possible to construct, using standard size stock to minimize machining. In fact I was able to build it and get it running with the experience from building a simple air engine and nothing else.

Most of the tolerances are a little tighter than necessary, particularly the bore of the cylinder. You can get away with it being a couple thousandths off.

It runs on 30% nitromethane fuel mixed with castor oil. The plans don’t exactly follow any standard, though they lean toward ansi. In the drawings for the cylinder, con-rod, and piston I used hidden lines to represent tool paths. I don’t have drawings for the needle valve, though many are easily obtainable online, or a pre-made one can be purchased.

- Shane”

Thanks for submitting your plans Shane! Be sure to visit Shane’s site to check out his other projects and to see a video of this little engine in action!

Would you like to have your project featured on this site? If so, do what Shane did and click the “Submit Your Plans” tab at the top of the page.

  Shanes_Two_Stroke_IC_Engine.pdf (156.0 KiB, 6,000 downloads)
NOTE: You need to be a registered member (and logged in) to download this file.

  • HOW? You can register using the yellow "Register" link in the upper right corner of the website. If you've registered previously you just need to log in using the "Have an account? Log In" link located in the upper right corner of the site.
  • COST? It's currently free to register and become a member of this site.
  • PRIVACY? Your email address will be encrypted and kept private.

    YOU WILL NOT RECEIVE SPAM FROM THIS SITE!

  • BENEFITS? Registering for the site allows you to download plans and other documents. Registering will also grant you forum access, allowing you to log into the forum using the same username and password you used to register for the site.
  • RSS? Subscribing to the RSS feed or subscribing to receive email messages whenever the site content is updated is not the same as registering. If you would like to receive email notifications you still need to sign up for that service. AND WE STILL WON'T SPAM YOU! We will, however, send you an email whenever the site is updated with new content. That's typically about 1 email a month or less.

[ad]
[adrotate group="4"]

About Tyler

Tyler is a hobby machinist and 3D printing aficionado. He teaches computer programming and web development at Highline College near Seattle. Tyler founded Projects In Metal in 2008 because he was frustrated by the lack of free plans available for hobby machinists.