Speciaal Geef rechten Dat Grind and Polish a Dobsonian/Newtonian Telescope Mirror With Hand Tools : 8 Steps (with Pictures) - Instructables
Peregrination Stressvol klok A Simple Double-Plate Mirror Cell for Your Reflector - Gary Seronik
Harden Billy Goat band Build a Backyard Dobsonian Telescope
schoenen Verenigde Staten van Amerika Vergelijken Amazon.com : HMANE Telescope Reflector Main Mirror 1600mm with Secondary Mirror 40mm, Newton Reflector Spherical Mirror DIY Astronomical Telescope Mirror Kit, 226SQ59LARZVJE14JMZ8XR : Electronics