I have several ideas and want to design some physical products ? How can I go about creating or modeling these without spending money on costly software such as AutoDesk/AutoCad etc ?
Here is basically what I want :<p>1) Draw the object in 3D - physical design<p>2) Model and simulate it. Example aerodynamic modelling<p>3) I need the design software to be flexible since many changes may be necessary before finalization.<p>I am familiar with circuit design and simulation but not with physical things.<p>Also, any advice from people who've been involved with product prototyping, design and development ?<p>Thanks!<p>Update: Ok, I found FreeCAD and freeCAD, thats a start. My further question is, is there anything available for aerodynamic modelling ?