Cosmos Mariner: a Large Aperture Dobsonian Telescope: There are many good Instructables here about making your own backyard Dobsonian telescope. Many of us start in the 8-inch to 10-inch range, and spend many long nights cruising around the Cosmos checking out the sights. Eventually, however, many of u…

Simple TELESCOPE: HELLO.... Here winter season starting now. The memories of winter is that, It is the good period for sky watching. In this season we will see a lot of stars and planets also the milky way. The milky way is very beautiful( it is only visible in clea…

Portrait of Dr. Erhard Hänssgen's 42 inch (107 cm) Dobsonian Telescope

A complete tutorial on how to make a small refractor telescope using two lenses and some cardboard tubing. Nice little telescope.

Homemade 12.5 Inch Dobsonian Telescope: How to build a 12.5 inch closed tube Dobsonian telescope. I began building it in the spring of 2008, but the bulk of the work was done in July of 2008 with first light occurring on July 25. This Instructable describe the planning, design, and pa…

Articles on building a Dobsonian Telescope and Newtonian Optical Tube Assembly.

Galileo made the first homemade telescope from two lenses and a leather tube. Over time, amateur astronomers have led the way in developing new techniques and ideas for building telescopes. Most serious amateurs attempt a home-built scope at some point, like a simple reflector telescope such as described here.

Homemade Tripod Wedge for SCT Telescope: The story I have owned a 4 inch telescope for over 30 years. I was never happy with the little tripod legs that came with it. I wanted something I could change with latitudes of various places. Off to the garage to see what I had on hand.. I look…

Want to become a spy or special agent, catching bad guys and solving clues. This means you will need some homemade spy gear gadgets to keep you ahead of the game.

10-inch Dobsonian Telescope: This instructable documents the design and construction of a 10” reflector telescope. It is not intended to be a complete step-by-step instruction set, but rather to document some of the design details and methods that were used. There are a lot of…