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Some pics of the machining process.

I came up with the idea to make a treadle engine after seeing dozens of simple ones made at a university for a student project, they are quite neat in my opinion. While this one is still pretty basic, I made it using CNC machines allowing for some interesting features. Every piece is machined...

Video:

I've built quite a few engines myself but have been making these at work lately and thought I'd share if anyone is interested. Kickstarter Campaign: http://kck.st/2QEVg21

Thanks guys, this was the 3rd engine I've ever built but the 1st I designed and drew in CAD so I was pretty happy that it actually worked out. I was inspired by some videos on the internet of rotary engines and wanted to understand better how they worked so I built this. I was blown away that...

Thank you for the kind words, I only started last year and this is only my 3rd engine (1st I designed myself) so I consider myself to be very new to all this as well.

Thanks. Here is a much better video I took tonight with a GoPro. https://youtu.be/TGXOBapQm5Y

Some pictures and the first video (not very good) but I'll get some more. https://youtu.be/lpeqWuj8oAo

So I decided to design and build a rotary engine a couple months ago because I saw a full size gnome running and was intrigued. This one took a couple of long weekends and a few parts had to be revised and rebuilt but it went together pretty good and I just got it running tonight. Thought I'd...

Well to start off with I'd like to say this project is going to take a LONG time. Progress will undoubtedly be slow and far and few between posts. That being said lets get to the project details. So anyone that knows me knows that I absolutely love radial engines. I'm a big aviation fan and the...

That is so cool. ;D

That is an astounding amount of information, thank you! I see gun projects in my future! :D

That is very true! And as you say, its a one off part, its not a production model so its not really a big deal. Just like back in the day, guns were manufactured by hand and were custom fit together and one guns parts were not interchangeable with another, but they worked! So cool, I will be...

Hahaha, that truly puts it into perspective, its tiny!! I love it. And seriously man, you are blowing my mind doing all of this without CNC!! I was going to say "well you could do...." but realizing that you are all doing this on manual machines... amazing job. I do know that the hardest part...

As Sixtysixdeuce confirmed, indeed it is! I love aviation and I often use the A10 avatar because I think its one of the most awesome jets ever made. What other aircraft is built around a gun as powerful as the AUG-8 Avenger!? None I tell you. Now back to the topic at hand, what made the...

This is good stuff!! I am a huge fan of firearms of all kinds, especially the AR15 having used one extensively in the military, and the .17HMR is one of my favorite calibers too. This project is bad ass man, keep up the good work!! Eric

Thank you for the kind words, I still feel that I know very little as I watch other people build their engines on these forums. I am currently in withdrawal as I no longer have access to all the machines I had in college.... one day, I will buy my own and finally be able to make more awesome...

Here is a video of it running! http://youtu.be/76om16YeguQ Its short cause I didn't have much time but I will get more eventually. At least anyone interested can see it run now. Eric

A learning experience it definitely was!! I lubed it up and got everything working perfectly today... it runs like a dream!! Had a close call though... I barely caught it but the little set screws that I used as pins for the valve rods were backing themselves out! I have now applied locktite...