A project came up that needed some low angle dolly shots in a remote location and a dolly rental wasn't available, so I went to the hardware store with a vague idea of what I wanted to build.
Although portable, I've never been a big fan of cheap friction camera sliders, but dollies tend to be too bulky. I hoped to build something that had the best of both worlds.
The entire setup cost me roughly $60.
$30 for the inline skate wheels from Big 5 sporting goods
$30 for pipe and hardware from Home Depot
-Wheels are silent and very smooth
-Entire dolly weighs less than 10 lbs but provides enough weight for SMOOTH inertia start/stops.
-Camera sits less than a foot off the ground for low angle shots, but I've raised it up with saw horses for tripod height stuff.
-Track is 2" pvc. I can take the dolly with me on the plane and buy the track at the location for $10.
-Track comes in lengths up to 16 feet per section. I'm not limited to 4' or less like most sliders.
It isn't complete - the 3/8" screw mounting the manfrotto head needs some beefing-up, but so far I couldn't be happier with the end result.