Time to resume working on my 14" f/5 telescope project.

The mirror cell parameters have been computed with PLOP. A standard 6 points cell it will be, with support points at 106.9mm. Here are a couple images of the cell - the discussion can be found on Cloudy Nights:

Computation with a true central obstruction of 75mm, allowing for refocus shift

Contents

Central obstruction: 75mm

Computation with a true central obstruction of 75mm, allowing for refocus shift

Contents

Central obstruction: 75mm

This page summarizes the results of a first preliminary study for finding an appropriate cell design for my primary mirror. These studies would noat have been possible without the assistance of PLOP, a free simulation tool for computing mirror deformations by means of finite elements analysis.

The cell designs included in this first study are a mix of readily available designs and other designs I created (either they were described but without a PLOP input file, or they were not described at all).