Rough grinding

Posted on by

When rough grinding I have experimented and is satisfied with the new tool where I grinding on an iron-plate. Next time I grinding a miror I will get a piece of iron bar. I have linked 75 seconds movie from the rough grinding-proces. I’m using the method described by Texereau and Howard, the file take up 6 mb.

Movie: Rough grinding

Here is some pictures from the rough grinding:

The sagitta (the hollowing) of the mirror is controlled by the slide caliper.


The curvature is controled by a template.


Adding water and grinding powder to the mirror.


The grinding realized by chordal stroke.

Category: Astroblog
Comments are disabled