差し金
Meanings
A traditional L-shaped measuring tool used in carpentry. Also written as 指矩.
See also: 曲尺
The carpenter used a carpenter's square to check the right angle of the lumber.
instigation; manipulation; behind-the-scenes influence
Implies that someone is secretly pulling strings or orchestrating events. Often used in the phrase 差し金で動く (to act at someone's instigation).
His sudden resignation seems to have been at the president's instigation.
There must be someone's manipulation behind that incident.
prop wire (kabuki)
In kabuki, a thin metal wire used to manipulate prop animals like butterflies or birds on stage.
In kabuki, a prop butterfly is manipulated with a wire.
puppet control rod (bunraku)
In bunraku puppet theater, a rod used to control the arm of a puppet.
The bunraku puppeteer moves the puppet's arm with a control rod.