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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
Click on a see also (sa) or tracing (xx) to view detailed entries about a related subject.
The entries are in alphabetical order by magazine name and then in chronological sequence.
To obtain a copy of any magazine article contact your local public library or the publisher.


The "hairbrush" telescope mirror. Tips on designing a mounting for thin glass mirrors. The mirror is supported on several short metal pins which in turn are supported by an aluminum casting. The use of this mounting may allow larger mirrors to be made of thinner glass, at lower cost, without the problems caused by expansion characteristics of thin glass.
SKY & TELESCOPE Dec 1978 (v.56#6) pg. 569

Reflections of a telescope maker. Tips on (1) making an 8" diameter f/4 short-focus mirror, (2) using a curved diagonal-carrying arm, (3) eliminating a conventional mirror cell, and (4) a tall Dobsonian-style mounting that rolls on two wheels and features a convenient eyepiece height.
SKY & TELESCOPE Sep 1989 (v.78#3) pg. 313

How to mount a spherical mirror so that it can be easily bent to a paraboloidal shape using a single wing nut.
SKY & TELESCOPE Jun 1992 (v.83#6) pg. 684

Telescope equatorial mount, tube, focus mechanism and mirror cell built by a woodworker using a minimum of metal parts.
SKY & TELESCOPE May 1994 (v.87#5) pg. 92

Numerical analysis to evaluate the deformation of a telescope mirror using both 3-point and 9-point supports.
SKY & TELESCOPE Sep 1994 (v.88#3) pg. 84

Refigure your mirror while you observe. Using an array of heat-generating electrical resistors attached to the bottom of a telescope mirror to alter a mirror's figure.
SKY & TELESCOPE Feb 1996 (v.91#2) pg. 76
Added Info SKY & TELESCOPE Jul 1996 (v.92#1) pg. 10

More thoughts on mirror-cell design. New study shows results of 3, 9 and 18 support points and variations in the mirror's thickness.
SKY & TELESCOPE Apr 1996 (v.91#4) pg. 75

Cures for unsupportive mirror cells. Results of a computer analysis program sheds new light on the number and location of mirror supports required to give the least amount of distortion.
SKY & TELESCOPE Jun 1999 (v.97#6) pg. 132

How to reduce the vibration of a single-stalk diagonal (secondary mirror) holder.
SKY & TELESCOPE Mar 2000 (v.99#3) pg. 132

Flexing spheres into high-quality telescope mirrors. Mirror cell design for flexing spherical mirrors into precise paraboloids. Also looks at alternative ways to flex a mirror.
SKY & TELESCOPE Nov 2000 (v.100#5) pg. 131
Added Info SKY & TELESCOPE Feb 2001 (v.101#2) pg. 16

Building a curved-vane secondary-mirror holder. Est. cost: $5.
SKY & TELESCOPE Apr 2002 (v.103#4) pg. 108
Added Info SKY & TELESCOPE Aug 2002 (v.104#2) pg. 14

A simple double-plate cell for your telescope's mirror. Remounting your Newtonian reflector's primary mirror could lead to better performance and easier collimation.
SKY & TELESCOPE May 2002 (v.103#5) pg. 110

An inexpensive microflexed Newtonian reflector. This simple warping cell can provide a quick and easy way to mechanically flex an inexpensive spheroidal primary mirror into the necessary paraboloidal shape.
SKY & TELESCOPE Nov 2003 (v.106#5) pg. 128

Improving telescope performance. Part 1. How to build your own mirror cells, often better than ones you can purchase. Several designs shown.
TELESCOPE MAKING #6 Winter 1979-80 pg. 32

Improving telescope performance. Part 2. Secondary mirrors and spiders. How to mount the second optical element.
TELESCOPE MAKING #7 Spring 1980 pg. 4
Correction TELESCOPE MAKING #9 Fall 1980 pg. 36

Designing nine-point and eighteen-point flotation cells for telescope mirrors. Includes a computer program written in BASIC.
TELESCOPE MAKING #26 Summer 1985 pg. 28

Precise positioning for a removable mirror cell uses a "key system". This facilitates the disassembly of large Dobsonian telescopes for transportation.
TELESCOPE MAKING #34 Fall 1988 pg. 22

Tip on using "Benlex" material in fabricating mirror cells, supports, braces, and similar telescope parts. This material is highly stable and easy for the homebuilder to work.
TELESCOPE MAKING #36 Spring 1989 pg. 36