A chassis consists of an internal vehicle frame that supports an artificial object in its construction and use, can also provide protection for some internal parts. An example of a chassis is the underpart of a motor vehicle, consisting of the frame (on which the body is mounted)
 
This Metal Chassis is a powder-coated Metal chassis for robots. Easy to mount the motors on the place by using normal motor mount nut.
 
This Chassis is brand new Powder coated with scratch and corrosion resistant metal body chassis for small DIY hobby projects.
 
This Chassis board is widely used as a mechanical frame structure of the robots.