Astronomical Models continued

Below is model that I built in 1998.  It is based upon a plan published in the April 1973 Meccano Magazine.  If you have keen eyes you may spot a design flaw in it.  It did not become apparent to me until I built it! 

Below is my very first attempt at building an orrery.  It was based on a "Model of the Month" featured in the June 1957 Meccano Magazine.  I has a very simple but effective gearing system.   Further models that I will build, I will base it upon this design.  It does not require the powerful but noisy ER15 electric motor!

Finally here is a photograph of Modelplan 59 by Alan Partridge.  A wonderfully accurate and complex model.

For more detailed photographs and an explanation of the mechanism and operation of  the orrery above go to the next page.

Power Drive Motor