Posted 25 July 2013 - 02:29 AM
I designed and built a crane to use with my video camera. I can raise and lower the camera, and tilt the camera angle up and down by using the handle attached to the lower arm. To balance the camera, I placed two 5 pound weights on the far end of the upper arm.
I built it out of 3 telescoping legs from a pop-up canopy. I used a speaker stand to mount the crane on, a wheel caster minus the wheel, and a speaker mount.
Here's more pictures.
The weights are positioned so the camera is perfectly balanced. You can raise or lower the crane, let go, and the crane will stay put. By sliding the rear section of the top arm which the weights are fastened to in or out, I can reset the balance for a heavier or lighter camera.
Posted 25 July 2013 - 10:52 PM
Posted 28 July 2013 - 12:57 AM
The broom is just to show the size of everything. I could take it apart further by removing bolts, but this much will come apart by simply loosening bolts, removing a pin, and shoving the telescoping jib arms together.
Edited by benesound, 28 July 2013 - 01:08 AM.
Posted 08 August 2013 - 01:13 AM
I recently discovered the joys of foam-core board in a design course. I'd known of it since the 1970s, but mostly saw it in pricey architectural supply stores like Charrette in the Cambridge area. (I just looked up the real intent of the word "charrette" [cart], which I'd always assumed was the owner's name. It's a cool term worth knowing!) Today, Dollar Tree sells black or white sheets of at least 20" x 30" x 3/16" thick (~50x75cm x 4.5mm thick) for $1, and I'm sure other chains carry it (or will soon). I've seen it in colors, too
It's rigid, light, cuts precisely with any knife or razor blade, edge-/corner-glues outstandingly with school glue. It has become one of my favorite prototype materials in the past few months. I use it almost weekly!
It makes great reflector boards, light boxes and small stashable photography/demo stages, too.
Posted 15 December 2018 - 10:18 AM
It's a recession when your neighbor loses his job: it's a depression when you lose yours.
-- Harry S. Truman
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