http://chestofbooks.com/home-improv...r-Boys/images/Making-the-Model-Engine-292.png(adsbygoogle = window.adsbygoogle || []).push({});

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 ''.

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# How do you calculate the length of this piece?

Loading...

Similar Threads - calculate length piece | Date |
---|---|

Calculating load per unit length | Oct 22, 2015 |

Gear Calculations using exact length for specific time | May 6, 2012 |

Calculating change in length under max load | Feb 2, 2012 |

Bearing Length and Shaft Diameter Calculation | Jan 4, 2011 |

Calculating the hydrodynamic entry length of a cicular pipe. | Sep 18, 2008 |

**Physics Forums - The Fusion of Science and Community**