Proper Dimensioning Tutorials

[alvin164]

Hi guys,


I'm a newbie here. Been using Pro E mostly on creating MOLDS for plastic and die cast parts. Now i'm applying for a new job as a product design engineer. I was wondering if you guys know any good website or have some tutorials that i can look at to learn more about how to properly dimension a product. When i was a mould designer, i always see a customer's 2D drawing with the Length or width or height with the +0.05 and - 0.02 or +0.00 and -0.05, etc...... i mean how do you know how much to give on the tolerances?


thanks

 

[prohammy]

Alvin,


Sounds like you need need to get your hands on a copy of the relevent BS standards to have a look at (BS 308, Parts 1,2, & 3)





Kev

 

[alvin164]

prohammy,


what do u mean by BS standards???
where can i get BS308 parts 1,2,3?

 

[prohammy]

Alvin


Are you in the US or in Europe?

BS is the British Standards


http://www.bsistandards.co.uk/


The US equivalent is ASME (American Society of Mechanical Engineers


http://www.asme.org/


Either of these will sell you comies of the relevent drawing standards. Failing that, find a mech eng and see if he/she has a copy. These standards will show you how to draft and tolerance a drawing. These standards are what Pro/E's dimensioning scheme is based upon


Kev

 

[alvin164]

Thanks for the help.... i'm in the U.S.A.

 

[Jacoolo]

I suppose you are looking for something about how to dimension, right?

so take a look on this links:

http://www.draftingzone.com/shoppingzone/
http://www.roymech.co.uk/Useful_Tables/Drawing/draw_geom.htm l

moulding:

http://www.npd-solutions.com/designguidelines.html
http://www.efunda.com/designstandards/plastic_design/plastic _intro.cfm
http://www.protomold.com/designguidelines/uniformwall/
http://www.plastics1.com/CIM/DesignGuide.php

 

[arroyopr]

try this web site.


www.etinews.com

 

[prohammy]

Just a thought,


I presume (like UK and Ireland) there are many tech colleges that will do various courses relating to basic/advanced dimensioning. Might be worth looking up your local ones and seeing what's available (these sort of courses are usually note the most expensive)

Kev

 

[cllshelton]

I am a college student and I have a video on advanced drawing if you would like it.
Just send me your email and I'll send you the video.
[email protected]


Edited by: cllshelton

 

[bgee]

<DIV =Section1>
Hai cllshelton,
Can u send the video on advanced drawing to this mail id. This would be very useful to me.
[email protected]
regards,
bgee.</DIV>

 

[afusen]

Hi CLshelton,


Can you please send me the video on advanced drawing
for learning purposes at [email protected].

Thanks,

Rey