Abstract: Apparatus adapting a guide device for use with a hand-holdable cutting torch. The guide device has an articulated arm whose free end is movable in a planar path defined by a stationary pattern template which the arm engages. The torch is of a type having a barrel, a handle carried on the barrel, an elongated nozzle, and an angled connection between the barrel and nozzle. The adapting apparatus includes a bushing for releasably clamping the torch nozzle, and a bushing-support plate carried on the free end of the arm in the guide device. The bushing, with the torch nozzle clamped therein, is mounted on the support plate for rotation relative thereto about the axis of the torch nozzle, where this axis is disposed substantially normal to the plane of arm movement. The apparatus enables the user to guide the movement of the arm along the template path by manipulating the torch handle.