This page has plans to make a 6" f/8 Dobsonian telescope, a Newtonian reflector with an altazimuth mount, but you should be able to make any other reasonable size by making some obvious modifications.

The html version of these instructions has been removed and replaced with a pdf document, which I hope will be easier to navigate and print. Download the pdf file.

If you have any comments, suggestions, or complaints, feel free to send me email at krapfn@uchicago.edu.