Go to: main menu

Go to: platform for 20 inch scope

Go to: my trilateral 20 inch dob

Go to: A 20 inch f/3.6 Dobsonian

Go to: Project: five 12 inch lightweight Dobsonians

Go to: Scotch mount

Go to: 20 inch telescope

Go to: Binoculair mount

Go to: Building a spherometer

Go to: Dobsonian tips

Go to: bending aluminium

Go to: Dotting the primary

Go to: balhead type telrad/finder mount

Go to: Collimation

Go to: Making a Krupa collimator

Go to: Mirror making log of 300 mm mirror

Go to: Astronomy links

Go to: Using digital finder charts at the eyepiece

Go to: Building a Bath interferometer

Go to: Building a mirror making machine

Go to: Astronomy

Go: Home

Email adres: Jan van Gastel