Making a Monolithic Telescope Part 2: Machining Glass

The second video in the series about manufacturing a small solid telescope. Time to make my hands dirty while doing artisanal stuff. CONTENTS: 0:00 Intro 0:46 The monolithic version of the Cassegrain 2:23 About baffles and stray light 3:18 Drilling the glass core 6:00 Radius milling the glass surfaces 9:35 Calculating the Best Fit Sphere in Excel 13:52 Drilling baffles 14:23 Using spherometers 15:44 This Beat is Spherotronic 16:31 Rough / fine grinding 18:05 Optical Pitch polishing 20:43 What’s next? 22:05 Looking through the uncorrected device 23:34 Thank you! Previous video in this series about the theory of aspherics and optical design: Video on the concept of the monolithic telescope featuring inventor Rik ter Horst: Video about radius grinding and the Loh CNC: More about the properties of o