I am looking to start the mobile base of my InMoov. There are a huge number of different materials available to use. I am contemplating Carbon Fiber and Aluminum. Does anyone have experience with these two materials that would be willing to give some pointers (mainly on the carbon fiber end)? I think my base will be either 18"x18" or 24"x24". I wonder what the strength of the base would be with Carbon Fiber and what thickness of carbon fiber I should use to hold say 50 lbs of SLA batteries when the base is being supported by 4 sides by maybe 1" aluminium square tubing? The frame would be aluminum and the motors would be mounted to aluminum. I guess my question is how thick of a CF sheet would I need and should I go with a honeycomb fill in the CF or a solid CF sheet? I have a friend who can weld really well so I am thinking about having a welded frame.
This is an area that I know little to nothing about. I hope to find some advice or else it's going to be trial and error. This could get really expensive.