Return to the Cloudy Nights Telescope Reviews home page
   · Get a Cloudy Nights T-Shirt · Submit a Review / Article   

Click here if you are having trouble logging into the forums

Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User

Equipment Discussions >> ATM, Optics and DIY Forum

Mike I. JonesModerator
Carpal Tunnel
*****

Reged: 07/02/06
Posts: 1571
Loc: Fort Worth TX
Re: I have this grinding tool..help me identify it.
      07/04/09 12:15 AM

Probably meehanite cast iron rather than steel. Yep - looks like a long-radius grinder for CX surfaces. Did you put a spherometer on it yet?

If you don't have a spherometer, an old trick Joe Appels showed me was to clean off your grinder, then spray WD-40 on it and get the sun's image in focus and measure the distance to focus. Not as accurate as a well-made and calibrated spherometer but better than trying to stack up valve shims under a straightedge.

Mike

Post Extras Print Post   Remind Me!     Notify Moderator

Entire thread
Subject Posted by Posted on
* I have this grinding tool..help me identify it. rwiederrich 07/03/09 11:08 PM
. * Re: I have this grinding tool..help me identify it. rwiederrich   07/03/09 11:16 PM
. * Re: I have this grinding tool..help me identify it. rwiederrich   07/03/09 11:19 PM
. * Re: I have this grinding tool..help me identify it. Mike I. JonesModerator   07/04/09 12:15 AM
. * Re: I have this grinding tool..help me identify it. rwiederrich   07/04/09 01:24 PM
. * Re: I have this grinding tool..help me identify it. Mark Harry   07/04/09 08:57 PM
. * Re: I have this grinding tool..help me identify it. rwiederrich   07/05/09 11:08 AM
. * Re: I have this grinding tool..help me identify it. Mark Harry   07/06/09 06:57 AM
. * Re: I have this grinding tool..help me identify it. rwiederrich   07/06/09 10:55 AM
. * Re: I have this grinding tool..help me identify it. Mark Harry   07/07/09 07:50 AM
. * Re: I have this grinding tool..help me identify it. rwiederrich   07/07/09 10:28 AM
. * Re: I have this grinding tool..help me identify it. Mike I. JonesModerator   07/07/09 08:05 AM
. * Re: I have this grinding tool..help me identify it. rwiederrich   07/07/09 10:39 AM
. * Re: I have this grinding tool..help me identify it. Mike I. JonesModerator   07/07/09 02:02 PM
. * Re: I have this grinding tool..help me identify it. rwiederrich   07/07/09 03:10 PM
. * Re: I have this grinding tool..help me identify it. rwiederrich   07/07/09 03:07 PM
. * Re: I have this grinding tool..help me identify it. Mike I. JonesModerator   07/07/09 11:36 PM
. * Re: I have this grinding tool..help me identify it. Mark Harry   07/08/09 07:05 AM
. * Re: I have this grinding tool..help me identify it. rwiederrich   07/04/09 01:36 AM

Extra information
4 registered and 6 anonymous users are browsing this forum.

Moderator:  Don W, Mike I. Jones 



Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Thread views: 382


Jump to

CN Forums Home



Cloudy Nights Sponsor: Astronomics