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

ME 4415 - Darjeeling B Class

Smokebox Pipe Plate dimension

All Topics | Latest Posts

Search for:  in Thread Title in  
Steambuff22/10/2011 15:15:16
avatar
544 forum posts
8 photos

Can someone please confirm the dimensions on the Smokebox Pipe Plate drawing.
 
According to the drawing there is a 8BA clearance hole between the 5/16" and the 1/4" holes.
 
The center to center dimension between the 1/4" and 8BA hole is give as 11/64" .... now if my maths is correct this only leaves approx 1/256" between the two holes. (No room for the head of a bolt/screw/rivet)
 
8BA clearance = 2.2mm = 0.086" =11/128 ... (radius = 11/256")
11/64" - 1/8" (radius of 1/4" hole) = 3/64" = 12/256"
12/256" - 11/256" = 1/256" (approx 4 thou)
 
Is this correct .... seems a bit too close to me.
(On the drawing it appeas that it should be approx 5/16" - Mid point between the 2 centers)
 
Dave
 
 
Donald Mitchell23/10/2011 10:10:47
avatar
90 forum posts
3 photos
Hi Engineers,
 
I have spoken to Raymond this morning and he confirms that he has no idea where the 11/64 dimension has come from; the 8BA hole is simply placed mid-way between the 1/4 and the 5/16 holes where it will be very happy.
 
Donald Mitchell
Bonnie Scotland
Steambuff23/10/2011 10:18:22
avatar
544 forum posts
8 photos
 
Thanks Donald/Ray.
 
I have just checked the drawings, that I purchased from Blackgates .. and it is there as well.
 
Dave
 

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
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