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

Tertium Quid Drawing Errors

All Topics | Latest Posts

Search for:  in Thread Title in  
JasonB09/02/2010 20:34:34
avatar
25215 forum posts
3105 photos
1 articles
Just spotted a few errors on these drawings
 
Base plate (both drawings) the overall size of the cut out is given as 1/4" (25mm) assume it should be 1".
 
Also on the base plate there is no way of locating the cutout vertically. I think it should align with teh 1/8 & 1/4 hole positions abu as drawn the cutout lines do not line up with the centre holes.
 
Flywheel The side elevation gives a total rim thickness of 1/4" but the section gives 1/4 + 1/16
 
Don't know if the metric dims are a new addition or from the original article but if newly added can they be consistant. 1 1/4" is shown as both 30mm and 32mm. 7/8" is given as 24mm and 25mm when its usual to round it to 22mm
 
I'll let you know if I see any more
David Clark 110/02/2010 09:03:12
avatar
3357 forum posts
112 photos
10 articles
Hi There
I just posted the drawing as is.
It was drawn about 20 years ago.
I will update when I get time.
regards David
 
Terryd10/02/2010 21:25:11
avatar
1946 forum posts
179 photos
There also appears to be a mistake on he positioning of the holes for the side brackets of the main body.  Th one on the RH side of the cutout is marked as being 15/32 (12) and it appears way out of alignment with a lower hole for the pillar which is marked as 1/2 (12). 
 
I know as an ex engineer not to, scale drawings but this looks wrong especially as the corresponding left hand hole is marked as being 21/32 (16) from centre which makes it only 11/32 in from the edge,  which I suspect, is the correct dimension in for the right hand hole and not the 15/32 shown.
 
 
Terryd10/02/2010 21:28:23
avatar
1946 forum posts
179 photos
By the way, there are two copies of the Terium Quid baseplate drawing in the 'Best Of Model Engineer Vol 2'. one on page 21 and one on page 23.
 
Is this significant?
JasonB11/02/2010 07:25:29
avatar
25215 forum posts
3105 photos
1 articles
Valve nut is also given as 4/32 (7) should be 9/32
 
J
Stub Mandrel14/02/2010 22:10:20
avatar
4318 forum posts
291 photos
1 articles
I've been trying to find the Stan Bray articles on the site and can't.
 
Could you point me at Tertium Quid and Lusus Naturae please?
 
TIA
 
Neil
JasonB15/02/2010 07:29:00
avatar
25215 forum posts
3105 photos
1 articles
They are in the "Best of Model engineering Vol II" don't think its on the site.
 
Jason
David Clark 115/02/2010 09:06:47
avatar
3357 forum posts
112 photos
10 articles
Hi There
Yes, in the best of.
A couple of minor corrections are on the site.
regards david
 
Stub Mandrel16/02/2010 21:58:08
avatar
4318 forum posts
291 photos
1 articles
Have to go shopping then!
 
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

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