O'Reilly logo

Technical Design Solutions for Theatre by Don Harvey, Ben Sammler

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Alan Hendrickson

A Hand-Driven Endless-Loop Turntable Drive

One person turning a handcrank can easily move a lightly loaded turntable, and a turntable driven by an endless-loop cable can rotate clockwise or counterclockwise any number of times. The device described here embodies both of those principles in a simple, inexpensive turntable drive.

SYSTEM COMPONENTS

The welded tube steel drive frame shown in Figure 1 holds a handcrank about 3 feet off the floor, a comfortable working height for most people. With this frame, a stagehand might typically be expected to turn a foot-long handcrank at about 60 to 90 rpm.

To allow the use of a simplified endless loop, all the sheaves in the drive frame are standard cast-iron A-size V-belt sheaves. In ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required