The info graph supported here helps know the various aspects and information needed to understand the design and working of the rollbars. Chassis Engineering offers custom designed low cost roll bars specifically suited for your car.
TouchDRO Android & Arduino-based application for realtime, precise measuring of X, Y & Z axis on my mini-lathe. I have all of the parts and will be programming and soldering probably this coming weekend.
Tube Notching Lathe Attachment - Homemade tube notching lathe attachment fabricated from flat and angled bar stock, threaded rod, and coupling nuts. Utilizes a chuck-mounted hole saw to cut the tube notches.