By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Allendale Oct 11th

Crayford Focuser

All Topics | Latest Posts

Search for:  in Thread Title in  
John Purdy06/05/2018 21:34:35
avatar
178 forum posts
59 photos

After reading Neil's lead editorial comments in issue #265 of MEW about the passing of John Wall the designer of the Crayford Focuser I remembered that I had copied the original ME article many years ago intending to make one for my 6" scope. The one I had made when I built the telescope when I was 15 was slightly less than satisfactory. The Crayford didn't get built, though, till a good many years later when I saw an advert in Sky & Telescope for the first(?) commercial one by JMI.
Here are some photos of my version of the Crayford Focuser, including the patterns for the two castings used, and my original 1 1/4" focuser.dscn3071.jpgdscn3070.jpgdscn3061.jpgdscn3076.jpgdscn3072.jpgdscn3066.jpgdscn3048.jpg

Bob Mc07/05/2018 06:55:17
avatar
141 forum posts
30 photos

Nice job John..

Neil Wyatt07/05/2018 11:31:56
avatar
Moderator
16562 forum posts
687 photos
75 articles

Nice one John, mine is waiting for me to remake the spindle housing, my DRO slipped and I ended up making the top too thin to take the required grub screws.

Neil

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Latest Forum Posts
Support Our Partners
Warco
Meridienne oct 2019
Eccentric July 5 2018
Eccentric Engineering
ChesterUK
Ausee.com.au
TRANSWAVE Converters
cowbells
Allendale Electronics
emcomachinetools
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest