I'm planning work to grind and polish my first cassegrain primary. I have read in several books that the typical method is to use a hole cutter with water and carbide grit or a diamond hole saw (with water). I have the ability to do this on my drill press but I was curious if anyone has had satisfactory results using a water jet.
The water jet typically has a draft angle associated with it so I am skeptical of it's use for a cassegrain primary. Any input would be appreciated!
Edited by nypsirc, 19 June 2019 - 01:57 PM.