Making A Mirror Grinding Tool By Allen Malsburry The average person would never think, "I can make my own telescope." Most amateur astronomers believe, "I can buy a better telescope than I can build." Neither is actually correct. For many decades now, amateur astronomers have been building their own telescopes.
Telescope Mirror coating - recoating - aluminising, telescope mirror blanks, polishing, grinding and pitch supplies. ... We offer a range of products and services for the ameteur telescope enthusiast such as grinding powders, polishing powders /compounds, telescope aluminising services.
For grinding the back of my 12" mirror, I used an 8" disk of 3/4" particle board, glued tiles to the front with epoxy, and coated the back and sides with polyurethane. It worked great. I made my ; polishing tool for my 12" mirror out of three layers of 3/4" particle board glued together. I used a chisel and a belt sander to put a curve on the ...
After your finished with fine grinding the mirror you will need to make yet another tool. This tool is called a pitch lap. It is made the same way as the penny tool you made to do the fine grinding except instead of pennies you will use "Pitch".
Please see the Buy Telescope Mirror Blanks page for low prices on plate glass mirror blanks. If you'd like to buy a complete mirror grinding KIT, with all abrasives and grinding tool included, please see the Buy Telescope Mirror Kits. website for the lowest prices on plate glass telescope mirror grinding …
It was made from an 18 inch diameter tabletop and some scrap lumber. I drew concentric circles on the top of the tabletop in the sizes of common telescope mirror blank diameters. I then built an arm to hold the die grinder and allow it to be adjusted up and down, and in and out.
(3) A homemade telescope mirror can be made with more accuracy and smoothness than the mass-produced, commercial mirrors available today. Unfortunately, the cost of mirror grinding kits and pyrex blanks has increased significantly in recent years to the point where any savings from making a mirror versus buying one are minimal at best.
Want to build your own telescope? Start with one of our telescope mirror kits. Each kit comes with a telescope mirror blank and all the abrasives (silicon carbide grits and white aluminum oxide powders), cerium oxide polish and pitch to grind and polish it to your specifications.
1-16 of 890 results for "telescope mirrors" 160mm Telescope Spherical Mirror - 1300mm Focal Length. by Cassini. $69.99 $ 69 99. FREE Shipping on eligible orders. 5 out of 5 stars 2. Cassini Spherical Primary Telescope Mirror, Plate Glass w/ Quartz Overcoat, Mirror…
May 23, 2018· 4 Inch Grinding Discs. Find the cheap 4 Inch Grinding Discs, Find the best 4 Inch Grinding Discs deals, . 9:20 Telescope Making, Rough Grinding a 12.5 inch primary mirror · old . Shank mounted points and grinding wheels are made from durable high grade 60.
Now that I have several blanks made, it is time to grind and polish one into a telescope mirror and test it out. I can use one blank as the mirror and another as the grinding tool, and have a couple in reserve in case something goes horribly wrong during the grinding and polishing operations. I'll post an update once a mirror is completed.
This page has formulas for many telescope and mirror parameters. It will calculate parameters for two different telescope designs and compare the results for you. It provides data to help in selecting a telescope, and also provides information necessary for mirror making and testing.
Mirror-O-Matic grinding machine. When I decided in 2009 after a ten-year break to get into mirror making again, it quickly became clear to me that I would need to construct machine, as hand grinding big mirrors is not something very beneficial for the hands of a musician.
Grinding, Polishing and Figuring Thin Telescope Mirrors . Part 2 - Polishing . Abridged from an article appearing in Telescope Making #13 Provided: Courtesy of Astronomy Magazine Article's Author: Bob Kestner . I am going to start with some additions to topics covered in part 1, on grinding mirrors.
The Joy of Mirror Making Mel Bartels ... Here is a 25 inch mirror on top of the fine grinding tool with pads applied. ... Note that the edge is not as reflective. Materials Needed. Pitch is used today to polish amateur telescope mirrors, though any soft material will …
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.