Free Cad Program

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What is the best free CAD program for carpentry designs?

I'm trying to produce a blue print for a home made bar. I thought the best way of going about doing that would to use a CAD program. What's the best, free CAD program I can download for this use?

start with google Sketchup and look at others, and some trialware for cad,

Google SketchUp
http://sketchup.google.com/
http://sketchup.google.com/3dwarehouse/search?q=bar&styp=m&btnG=Search

DesignWorkshop Lite
http://www.artifice.com/dw_lite.html

Sweet home 3d
http://www.sweethome3d.com/index.jsp
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AutoCAD LT 2D
http://usa.autodesk.com/adsk/servlet/pc/index?siteID=123112&id=13706278

TurboCAD Professional
http://www.turbocad.co.uk/turbocad_professional.html

Cadsoft™ | Professional 3D Design Software
http://www.cadsoft.com/

ARCON 3D Architect Visualisation Software
http://store.eleco.com/acatalog/ARCON_3D_Architect.html

Punch! Home Design Studio Pro,
http://www.punchsoftware.com/

QCAD
http://www.qcad.org/qcad.html
..

TROPE : Toroidal Opposed Piston Engine


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