A Newtonian Telescope

thingiverse

Everybody is curious about the stars in the sky. So, let's begin our DIY to build our Newtonian Telescope. For basic ABCs, you might google "Newtonian telescope". This project may last for a month long, from 1st March to 31st March, 2017. (2017.3.14) I have printed all the parts uploaded, the next step is assembling them together. Currently, in my mind, the most difficult tast would be the adjustment of the light path. How I Designed This 1.Materials Although this is a DIY telescope, some parts involved are still from local market, such as: (here is mine, and you can choose parts with different parameters) 1 A primary concave mirror, diameter = 114 mm, focal length = 900 mm, thickness =14 mm 2 A secondary mirror, elliptic shape, minor axis length = 23 mm 3 A pipe, diameter = 130 mm, length > 750 mm 4 A eye piece, diameter= 32 mm, focal length = 12.5 mm 5 Screws, nuts and springs 2. Main Step Herein, the diy here may be devided into some steps, such as: a) Assemble the Primary Concave Mirror into the pipe; b) Assemble the Secondary Mirror into the pipe; c) Assemble the Eyepiece into the pipe; d) Assemble the Pipe (with Primary, Secondary mirrors and eyepiece assembled) to a tripod e) asjust the light path. These steps may not contain in this diy. f) design a connector between the eyepiece and a Digital Camera. (find one in thingiverse: http://www.thingiverse.com/thing:106657) g) equip a finderscope (take a laser pointer instead) h) some equatorial device Basic ABCs Simplified Scheme for a Newtonian Telescope