this is about how i built an electric go-cart for really cheap which turned into a battery powered bed and i will show you how i did it to get you ideas for a similar project. I did it to really help me learn about building an electric car.
Step 1: Pick a Frame
first your going have to find some thing with a strong fram like a bed or a couch or some thing like i got hear
Step 2: Next Use Ziptiyes to Hold It ....
together if you dont atach the box spring to the mattress you will fly all over
Step 3: Welled a Frame for the Drive Train to Sit In
Step 4: Pick a Motor
i usesd to 10 amp drill motors from the tool store but you should get some dc motors
Step 5: Figuer Your Power and How Much U Will Nead
i used this web site to do my power aka best gear ratsio to use for it with