Need sample working drawings for 3d madelling 2

[Robbyod]

Hi all,
Im trying to brush up on my parametric CAD skills, something i havent done much of since college, and im looking for samples of working drawings which i can attempt to make a 3d model of.

Im using T-Flex (not willing to pay for Pro-E or Solid works) which has some good tutorials but nothing i can really work with.

If anyone has some links to useful websites or working drawings of your own which you would like to share that would be greatly appreciated.

Thanks

 

[Robbyod]

Hit the nail right on the head. That is perfect.

TY very much

 

[JohnRBaker]

Note that these were taken from my Freshman year's Drafting textbook. And since in those days they were attempting to teach students how to create 2D drawings you couldn't give them examples showing 3 or 4 Orthographic projected views. After all, that was the deliverable that the student was expected to produce, therefore you had to provide illustrations, such as these, from which the student had to learn how to then represent the model as 3 or 4 2D Orthographic projections with perhaps a couple of section views thrown in for good measure. Now some 40+ years later, while the deliverable may be different, the types of material suitable as a starting point really has not had any need to change.

That being said, look around for some of those old text books. If you don't go back that far yourself, ask some of your older fellow employees or even your parents or other family members, or as I first suggested, go visit that local used book store. BTW, the older the textbook the better the illustrations I think, if nothing else they're often more interesting. Again, as I mentioned before, one of the guys I work with has a Drafting textbook from the 30's and these illustrations could be framed and hung up as 'art'.

Anyway, glad I could help.

John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA

http://www.siemens.com/plm

http://www.plmworld.org/museum/

To an Engineer, the glass is twice as big as it needs to be.

 

[ShaggyPE]

Here is a link to one such book via googlebooks. This is the quintessential drafting book of the early days... French was the author.

http://books.google.com/books?id=1y...&resnum=2&ved=0CDUQ6AEwAQ#v=onepage&q&f=false

-Dustin
Professional Engineer
Pretty good with SolidWorks

 

[JohnRBaker]

Now that's what I was talking about and starting on about page 186 there are several examples which might work for anyone looking for ideas to practice on.

However, the book does give away it age a bit when you check out what's on page 42. I suspect that you would never see anything like that in any Drafting textbook published in the last 70 years.

John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA

http://www.siemens.com/plm

http://www.plmworld.org/museum/

To an Engineer, the glass is twice as big as it needs to be.

 

[PeterStock]

Great example of what the OP should be looking for Dustin.

Peter Stockhausen
Senior Design Analyst (Checker)
Infotech Aerospace Services

http://www.infotechpr.net

 

[ShaggyPE]

However, the book does give away it age a bit when you check out what's on page 42. I suspect that you would never see anything like that in any Drafting textbook published in the last 70 years.

geez... I have to agree. I didn't scroll through it that thoroughly on the first go through. I should have looked for a book dated after 1944 I guess.

-Dustin
Professional Engineer
Pretty good with SolidWorks

 

[AnnaWood]

Dustin,

The older drafting books are better. The old school techniques are good to understand. CAD just automates the old school processes.

Cheers,

Anna Wood
Core i7 EE965, FirePro V8700, 12 Gb RAM, OCZ Vertex 120 Gb SSD, Dell 3008WFP 30" Monitor
SW2010 SP2.1, Windows 7 x64

http://www.solidmuse.com

http://www.phxswug.com

 

[ShaggyPE]

Anna,
I couldn't agree more. Beautiful works of art. Check out the link and page 42 and you will see why I referenced 1944.

-Dustin
Professional Engineer
Pretty good with SolidWorks

 

[rollupswx]

Fig. E-21.11 No clearance between Shaft-Steel and Valve Housing.
No clearance between Valve-Steel and Valve Housing. And I haven’t even started to 3D model to find what other problems there might be. Pretty art doesn’t make it work. But there is no reason why modern 3D modeling cannot also be artful.

 

[JohnRBaker]

Those illustrations were created before anyone attempted to fully document a part's design (those images were taken from a 40+ year old textbook), including manufacturing tolerances, from an isometric view (of course today we have PMI so that would now be a moot point). Those illustrations were used a part of a 'Drawing' assignment with the assumption that only nominal dimensions were being shown. I would expect that the application of appropriate tolerances would have been part of the assignment given to the 'student'.

John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA

http://www.siemens.com/plm

http://www.plmworld.org/museum/

To an Engineer, the glass is twice as big as it needs to be.

 

[ChrisDuncan]

Have been through this search myself

There's IVWC (Inventor World Cup) which is PDF's of mech drawings of different objects. Click on the "IVNGWC (dated).zip" files. You can also dig through the contest results and see how fast some people can build things. This is good exercise because you can build the model then make a drawing from it with the original to compare.

http://worldcup.teknigroup.com/worldcupfiles.asp

then there's Trace Parts which is a huge database of cad drawings of manufactured parts. You have to register (free) and do some digging to find parts worth drawing but it's a large resource.

http://www.tracepartsonline.net/(S(lnkbu355fsp4h455vwgizd2j))/global/index.aspx?lang=en