Heating up pitch for making a telescope mirror polishing tool
Channel: iutubeus
Date: 2011-10-31

Heating up pitch (pine tree sap, turpentine, etc) to liquid form before making a pitch lap for polishing a telescope mirror. The next step is pouring this pitch into a form, shown in another video. Progress on this project is documented at http://astroscopy.wordpress.com Many thanks to the telescope workshop of the Santa Barbara Astronomical Unit for making this project possible!