EASY CONSTRUCTION OF MIRROR-GOAL ONE NEWTON 200-F6 FOR TELESCOPE If you are a fan of DIY, investing 116 minutes of your time to see the movie that follows this presentation, You'll be able to figure out if it can be of your interest and within your reach make a newtonian telescope mirror, with 200mm diameter
This article is divided into four parts, in which it is fully shows the shared discussion forum from 20 February 2014 to a 9 June 2014, with the glorious completely manual realization by “Massimar”, a mirror Newton diameter 300mm focal ratio F 3,8 with excellent quality of given surface from peak / valley asperities
This article is divided into four parts, in which it is fully shows the shared discussion forum from 20 February 2014 to a 9 June 2014, with the glorious completely manual realization by “Massimar”, a mirror Newton diameter 300mm focal ratio F 3,8 with excellent quality of given surface from peak / valley asperities
This article is divided into four parts, in which it is fully shows the shared discussion forum from 20 February 2014 to a 9 June 2014, with the glorious completely manual realization by “Massimar” a mirror Newton diameter 300mm focal ratio F 3,8 with excellent quality of given surface from peak / valley asperities
This article is divided into four parts, in which it is fully shows the shared discussion forum from 20 February 2014 to a 9 June 2014, with the glorious completely manual realization by “Massimar”, a mirror Newton diameter 300mm focal ratio F 3,8 with excellent quality of given surface from peak / valley asperities
PART FOUR AND LAST: NOTE: Clicking on the images You gets his magnification, often helpful to appreciate the details that are in practice the object of this work. Today is the 7 March 2009 START I start polishing the amateur work abandoned 4 February for "paid" business reasons . Resume in hand then the mirror whose
PART THREE, of FOUR: 5 February 2009 PREPARATION OF POLISHING TOOL : Returning to practice to cover the tool with "candy squares of pitch", to be pasted on the same, with simple local and light softening one facet of the squares with a candle flame,, and then fixed in position on the glass with a little thumb pressure;, You may want to read my article with various photographs on this
SECOND PART, of FOUR: The February 2 start polishing abrasive 320 medium grain size 30 microns. The reference text indicated in the first part to the point (2) Realize your telescope di e Karine Jean-Marc Lecleire; to their page 152 says that the grain 240 (…abrasive corundum) need 3 hours and 15 of
PART ONE, of FOUR: This work is made transcript (I hope) readable, relative to notes taken in pencil in my “"grattavetro" Diary” during the construction of the mirror installed in my lightweight Travel Dobsonian Telescope, in photography. Notes that are usually taken, for myself, as with the passage
Building a Ritchey-Chretien: preconditions
And, it's possible to do it (*) by manually working the optics and you don't need special equipment or more sophisticated than what we normally use for the construction of a parabolic mirror but, let us now, to embark on such an adventure necessarily have to have more than one working behind, to understand how to generate two hyperbolic surfaces, and
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