How can i get mechanical plans with dimensions for design ?

Search GrabCAD Q&A's there is many people left web sites to goto.

1: http://dl.dropbox.com/u/53790195/Inventor%20Trenches/Autodesk%20Inventor%20Practice%20Part%20Drawings.pdf

2: http://www.inventorwizard.be/blueprints/index.html

3: http://inventortrenches.blogspot.in/2011/03/modeling-practice-drawings-for-inventor.html

Google what you want to model and add something like "dimensions" or "engineering drawing" to your search.

If you have something at hand you want to try and model then a tape measure, rule and measuring callipers are pretty much all you need other than pencil and paper to write down the dimensions.

There-after, refer Hans's answer

Martin

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