- #1
throwaway222
- 4
- 0
http://chestofbooks.com/home-improv...r-Boys/images/Making-the-Model-Engine-292.png
I want to know how you would determine how long the rocker arm in this picture is.
http://chestofbooks.com/home-improv...r-Boys/images/Making-the-Model-Engine-297.png
Here is all the parts so you know what I mean.
It obviously moves the slide valve, but mathematically speaking, how do you know the length of it and where the fulcrum would be to move it within 3 1/2 ''.
I want to know how you would determine how long the rocker arm in this picture is.
http://chestofbooks.com/home-improv...r-Boys/images/Making-the-Model-Engine-297.png
Here is all the parts so you know what I mean.
It obviously moves the slide valve, but mathematically speaking, how do you know the length of it and where the fulcrum would be to move it within 3 1/2 ''.