Two parts for the Main Chassis for the Open Academic Robot Kit. You will need to print out 2 of each and then connect these as opposites and add the the bash plate to help make the main chassis. Updated model files include holes for the Arm and Raspberry PiHi, You will need to print off 4 of these parts, 2 left hand and 2 right handed. These will then interlock together to allow you to construct the main chassis. Laser cutting or cutting the bash guard using a bandsaw with the mounting holes around the edges will allow you to align and screw together. UPDATE: The holes on the main parts align with the associated Arm (to follow soon) and to mount the Raspberry Pi control module. I have also included a DXF orthographic view of the buggy without the arm to help layout. You will notice a lot more stiffness if you add the bash guard. I have included some mounting holes for the Raspberry Pi and the Open CM board on the bash guard, if you intend to use these products in the construction of the Open Academic Robot.