Θέλω να ρωτήσω αν έχει ασχοληθεί κανείς μ'αυτό και αν είναι ετσι όπως τα λένε τα παληκάρια. Mirror Making Myths Mirrors can only be made with Special Precision Equipment in Expensive Factories or Labs Not True! Telescope mirrors can be made in your kitchen, basement or garage with nothing more than the mirror blank and a second piece of glass (called the tool) to rub the mirror against with an abrasive grit and water slurry. You can do this on a wet towel on your kitchen counter, on a board with a few cleats screwed to in on your lap, or the traditional way on a barrel or pedestal. You need no tools whatsoever to grind the mirror. Some sort depth gauge is helpful; a steel rule and some feeler gauges (buy this at an automobile parts store) will work well. Most professional and some amateurs do use machines, but these are simple, rotating spindles to supply the energy for grinding from a motor and not your muscles. You may notice that many commercial telescope advertisements proclaim they use "Hand Figured Optics" - in fact this is the only way to get an accurate surface on a mirror - machines just can't hold the tolerances necessary, and any good telescope optic, including the mirror you could make in your kitchen, should be hand figured. I need a Well Equipped Shop to Make a Mirror or Telescope at Home Not True! As you have read above, you really need no tools to make a mirror at home. If you want to build a telescope, you will need some simple hand tools - a hand saw, a drill, ruler, hammer and screwdriver - but nothing exotic or terribly expensive. Power tools are completely optional. Good, solid, useful telescopes can be built by novice amateurs. Making a Mirror takes Hundreds of Hours of Work Not True! A 6" or 8" mirror should take about 40 to 80 hours of effort. While this is a non-trivial amount of time, the mirror can be completed in a few months, and certainly within a year. Most people work one to three hours a day on their mirror about one or two times a week. Homemade Mirrors are of Inferior Optical Quality Not True! In fact, many amateurs choose to make their own mirrors to get Superior optical quality. Figuring optics is labor intensive (which is why good optics cost so much), and some firms choose to stop figuring at "good enough". The amateur can choose to spend a little more time to make great optics. Αν είναι έτσι βρήκα τι θα κάνω στις συννεφιές! παίρνουν γυαλί απο φυνιστρίνια πλοίων! (χονδρα και φθηνα) 10" $300 (is) 12" $400 (is) 14" $500 (is) 15" $550 (is) 16" Brass 4 dog $650 (is) 16" Brass 4 dog w/cover $650 (is) 16" Brass, 2 dog $650 (is) 16" Aluminum, 2 dog $400 Qty 43 beveled edge and 14 straight edge (is) 18" Brass qty. 3 $1000 (is) Square aluminum 23" X 16" four dog qty 3 $600 (is) τα κάνουν παραβολικά έτσι http://www.stellafane.com/atm/atm_main.htm και τα στέλνουν για επικάλυψη τιμες επικάλυψης καθρεπτη ALUMINUM COATING FOR OPTICS AND TELESCOPE MIRRORS MIRROR SIZE PRICE 6 INCH $30 8 INCH $35 10 INCH $40 12.5 INCH $50 16 INCH $60 18 INCH $70 20 INCH $100 see note TWO MIRRORS COATED TOGETHER 6 & 6 INCH $40 τι να πω ...μπράβο!