By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Forum House Ad Zone

Myford ML7 spindle nose dimensions

All Topics | Latest Posts

Search for:  in Thread Title in  
Ian Lee29/09/2009 22:32:45
53 forum posts
Can ayone tell me what the dimensions are for the spindle nose on an ML7 , I want to make an adapter for one of my ER32 collet chucks which was made fit on a Myford.
 
I am making the adapter to fit the chuck on a spare Cam lock backplate on my Chester Conquest lathe.
 
I need the thread pitch and diameter and the diameter and recommended lenght of the location shoulder.
 
 
mgj29/09/2009 23:28:37
1017 forum posts
14 photos
The register diameter you can measure, and the depth will be measurable too, less an allowance for the threading runout groove. You will need to turn to 1.250  +.00002/ +.00005 if you want it to really run true. (Keep it well oiled with 3:1)  As long as it clears the actual depth of the register is not critical.
 
 The ones I have cut for mounting stuff on a VDH, and putting a boring head into the Dore Westbury have had registers about 1/2" long. The one supplied on the BS0 dividing head, which is perfectly secure is not much more than 3/8" long. 
 
The thread is 1 1/8  x 12  55deg Whit form, but you wil need to ensure the crests are truncated a fraction, to be sure it doesn't hang and the register and back flange are doing the aligning..
mgj30/09/2009 00:18:35
1017 forum posts
14 photos
Can you correct the dimensions - I've put the decimal point in the wrong place. +2 tenths of a thou to + 5 tenths. Apologies

Edited By meyrick griffith-jones on 30/09/2009 00:18:52

David Haythornthwaite30/09/2009 10:21:01
avatar
45 forum posts
7 photos
If it helps, I made a collet adapter as you are making and I kept the measurements that I used for this. I will email you and attach a Jpeg of the details.
If you can get hold of MEW Feb 99, Giles Parkes details the dimensions of an adapter, but if you use this BEWARE - the boss needs boring out to 1.018" for screwcutting NOT 1.108" as printed in the article.
mgj30/09/2009 12:07:36
1017 forum posts
14 photos
Damn -put it down to a streaming cold and late at night. the thread is 1.250 x12 whit and not 1.125x12. Should have known because I only did one only the other day.
 
Got myself totally crossed up there.Pity there isn't a delete post facility.
 

Buy a Model Engineers Handbook (3rd edition)by Tubal Cain. The dimensions are in there as is all the threading data.

Edited By meyrick griffith-jones on 30/09/2009 12:09:18

John Stevenson30/09/2009 12:17:43
avatar
5068 forum posts
3 photos
Posted by meyrick griffith-jones on 30/09/2009 12:07:36:
Damn -put it down to a streaming cold and late at night. the thread is 1.250 x12 whit and not 1.125x12. Should have known because I only did one only the other day.
 


 
Sorry ??
Myford thread is 1 - 1/8" x 12 Whit form, Register is 1 - 1/4"
 
John S.
Ian Lee30/09/2009 18:16:01
53 forum posts
Many thabks to all for the info I'm hoping to start on the adapter tonight providing grandad duties don't  get in the way
mgj30/09/2009 19:41:39
1017 forum posts
14 photos
Still got the streaming cold
 
I really got myself into a tiswas over this one.
 
Anyway mine did fit fine first time, so perhaps the doing is easier than the writing. Apologies.

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

Sign up to our Newsletter

Sign up to our newsletter and get a free digital issue.

You can unsubscribe at anytime. View our privacy policy at www.mortons.co.uk/privacy

Latest Forum Posts
Support Our Partners
cowells
Sarik
MERIDIENNE EXHIBITIONS LTD
Shopping Partners
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

 

Donate

donate