Mirror blank kit - posted in ATM, Optics and DIY Forum: Could somebody please point me to a source where I can purchase a kit for grinding a 6" mirror for a Newtonian type telescope… For full functionality of this site it is necessary to enable JavaScript. Want to build your own telescope? This will get you on a great start to building your own telescope. Amazon's Choice for telescope mirrors Ullman Devices HTC-2 High-Tech Telescoping Inspection Mirror, 2-1/4" Diameter, 6-1/2" to 36-3/8" Length 4.6 out of 5 stars 777 ... ( CATS) telescope making group. Special Notice-We want to let our customers know that during this timeframe we continue to do business as usual. Rough grinding powders for grinding mirrors to the required curve starting with flat (non diamond generated) mirror blank and grinding tool. We manufacture telescopes and accessories such as telescope wheels, carrying cases, guiding computers, focusers, motors and motor controls and much more. Here is a link to the 'Sky at Night' magazine's Telscope Making Video by two members of CATS. Save money and time by purchasing a telescope mirror kit. Three grades of coarse grinding powders are listed below. Zambuto Optical Company is a full service custom manufacturer of premium Newtonian primary telescope mirrors from 7" through 24" diameter. 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. This kit includes an 8 inch telescope mirror blank, all the silicon carbide grits, white aluminum oxide powders, gugolz pitch, and cerium oxide polish you will need to grind and polish an 8 inch telescope mirror all bundled in one spot. Here are the instructions how to enable JavaScript in your web browser. Jim's Mobile, Inc. (JMI Telescopes) is a world renowned manufacturer of astronomical telescopes and aftermarket accessories for the amateur and professional astronomer.