I made this as a summer CAD project. This is designed to help teams that use extruded aluminum frames develop a frame in a few minutes rather than hours so that more time could be spent on designing other systems on the robot. This tool generates the entire metal frame for you including the bolts and nuts (provided that you use 1/4-20). What needs to be provided are the wheels, bearings, axles, hole tapping, and other attachments you need. Please provide feedback.
Link for download
Key files:
- extrudedaluminumframeparameters.xls -place where the parameters are edited.
- extrudedaluminumframe.iam-the generated frame
- extrudedaluminumframe2.iam- the same as above except organized in to sub assemblies.
- extrudedaluminumframe.dwg- drawing displaying where the parameters go and shows how to assemble the frame.
- extrudedaluminumframe-numericdimensions.dwg- drawings with dimensions rather than parameters. Does not show how to assemble the frame.
PS. Can I use this design during the FIRST season? If anyone is from the Duluth area of Georgia, can he tell me where a good place is to get parts machined (like CNC)?
Consider how nature does this, and emulate. Nature usually has a pretty good algorithm. - DonRotolo [more] 
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