I Built a Camera Dolly

Camera dollies!
See this dolly in action:
• Sci-Fi Short Film: "It...
David Sandberg's dolly Tutorial:
• How to Build a Shitty ...
My Parts List:
1- 30"X27.5"X3/4" plywood
2- 1.5"X0.25"X30" angle iron
4- 4"X4"X.025" steel plates
16- 3/8"X1" hex bolts
16- 3/8" T-nuts
8- 5/16"X2.5" bolts w/nylon lock nuts for axles
8- skateboard wheels w/ bearings and spacers
3- pvc caps for tripod feet
2- 10ft pvc pipes + pvc connectors for track