The basic material used for the three tube sections was the cardboard Sonotube or Quick-Tube. Tubing - cutting and selecting the tubing. • A positive lens, plano convex or bi-convex, or a positive meniscus. Build a Telescope! Glue that framed lens to the end of the smaller tube. Do not use the wax coated type - … to the tubes. It is the type that does not have a wax coating. For our implementation To build our telescope we need the following materials: • Two cardboard telescopic tubes, the external diameter of one must be equal to the inner diameter of the other, one meter length. Aluminum Telescope Tubes. To understand what light is, how it moves and how we observe it. • To understand what light is, how it moves and how we observe it. 3. You have now assembled a simple refracting telescope. Put your name on the cardboard tube. The shorter focal length lens will be the eyepiece. If you want to build a telescope yourself, you'll soon be on the lookout for a suitable tube. Aluminum, contrary to what some would have you believe, has far better thermal and mechanical properties when compared to fiberglass or cardboard. We offer a complete line of aluminum telescope tubing for those who wish to construct their own tube assemblies. Slide the two cardboard tubes together. Building an 8" Open Tube Reflector. Glue the other framed lens to the end of the larger tube. Construction Pictures Tubes, Struts and Finishing. Look through the eyepiece of your telescope and focus it on a distant object. Aim the scope, close one eye, and focus by sliding the smaller tube and adjusting the distance between the two lenses. Jul 20, 2017 - Here's a great craft project for the boys or the girls! Recycle a few household items, like paper cups and cardboard tubes to create a telescope. Telescope tubes made of hard-paper. Customize the telescope by adding decoration, designs, wording, etc. • Two cardboard tubes approximately 25 cm long • Masking tape • Scissors LEARNING OBJECTIVES • To build a simple refractory telescope similar to the first telescopes and understand how it works. Look through the lens and help discover new worlds, just like Christopher Columbus! To build a simple refractory telescope similar to the first telescopes and understand how it works. • I offer individually produced tubes of hard paper, exactly according to your specifications.Laminated fabric or glass fiber is also possible. Two cardboard tubes approximately 25 cm long; Masking tape; Scissors; Learning Objectives.