. .

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. 10-11-2022 #1
    Misterg's Avatar
    Lives in North Wales, United Kingdom.
    Misterg
    Last Activity: 06-11-2023 Has been a member for 2-3 years. Has a total post count of 20. Received thanks 10 times, giving thanks to others 6 times.
    Thanks!

    The X and Y axes have a thin layer of epoxy bedding that was cast against a flat surface (1" glass plate) to try and make them co-planar.

    To put you out of your misery - the pillar drill thing was a contraption to drive a trepanning tool to cut a glass disk for a telescope mirror :)



    Very old video of it in operation (circa 2003):



    The back of the finished mirror (7" diameter)...



    ...and the telescope.




    (Some more stuff on my website if you're interested - www.misterg.org.uk )

    Thanks again. :)

    Andy
    Reply With Quote Reply With Quote

  2. The Following 2 Users Say Thank You to Misterg For This Useful Post:

    AndyGuid, Clive S
« Previous Thread | Next Thread »

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. NEW MEMBER: long time lurker from essex
    By kaighn80 in forum New Member Introductions
    Replies: 4
    Last Post: 11-07-2020, 05:48 PM
  2. NEW MEMBER: Lurker stepping forward
    By Ninjabika in forum New Member Introductions
    Replies: 2
    Last Post: 30-06-2018, 06:24 PM
  3. NEW MEMBER: Long-time lurker, ready to take the plunge
    By GREGGYMAC in forum New Member Introductions
    Replies: 5
    Last Post: 01-01-2018, 08:00 PM
  4. NEW MEMBER: Hello from a lurker...
    By firetrappe in forum New Member Introductions
    Replies: 16
    Last Post: 03-10-2013, 11:53 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules