make your own telescope

How To Make Your Own Telescope

Want to learn how to make your own telescope.  Great! Over the next couple of months I will be publishing a book, that teaches you how to make your own telescope.

Make sure you come back to this site.

Update: June 2008 - Now you can read the PDF version of:

Make Your Own Telescope right here.

Chapter I. STORY OF THE TELESCOPE


The Galilean Telescope

The Keplerian Telescope

The Gregorian Telescope

The Cassegrain Telescope

The Newtonian Telescope

John Hadley

Herschel's Contributions

The Achromatic Refractor

The Modern Era

Reflector or Refractor?

What Size Reflector?

Chapter II. Materials and Equipment

The Template

Channeling Tool

Grinding Stand

Mirror Testing Rack

Testing Stands

Foucault Testing Device

Theory of the Foucault Test

Chapter III. Mirror Grinding

Strokes

What Abrasive Does

How the Curve is Obtained

We Go To Work

How to Determine Contact

Cleaning Up

Fine Grinding

Examining for Pits

Chapter IV The Pitch Lap

Making the Lap

A Better Lap

Making Contact

Chapter V Polishing - Testing - Correcting

Theory of Polishing

Polishing Procedure

How to use the Foucault Device

Further Polishing

Examining for Pits II

Correcting

Turned-down Edge

Turned-up Edge

Correcting the Oblate Spheroid

Correcting the Hyperboloid

Chapter VI The Paraboloid

The Reference Spheres

Knife Edge Magnification

Surface Tolerance

Error of Observation

Testing the Paraboloid part 1

Testing the Paraboloid part 2

Testing the Paraboloid part 3

Testing the Paraboloid part 4

Testing the Paraboloid part 5

Testing at Focus

Test for Astigmatism

Parabolizing Strokes

Parabolizing Strokes part 2

Aluminizing

Chapter VII The Diagonal

How Large a Diagonal

Preliminary Preparations

How Flat a Diagonal

The Light Source

Testing For Flatness

Making the Diagonal

The Lap

Polishing and Testing

An Elliptical Flat

Chapter VIII Tube Part - Alignment - The Finder

The Mirror Cell

The Tube

Eyepiece Support

Diagonal Holder

Spider Support

The Saddle

Optical Alignment

The Finder

Chapter IX Eyepieces and Related Problems

Field of View

Exit Pupil and Eye Relief

Eyepieces

Aberrations of the Eyepiece

Assembling Eyepiece Components

Chapter X The Mounting

The Babbitted Bearings

Further Suggestions- A Portable Mounting

The Tripod

Machining the Parts


 




 
corner bottom corner

This site is protected under both U.S. Federal copyright law and international
treaties. No part of this work, including text, look and feel, layout, images, may
be reproduced or copied in any form or by any means.