# Bimanual Input and Revolver ### Bimanual Input This is a 3D-version of bimanual tape drawing sometimes used in automotive drafting. Holding the off-hand trigger down will constrain the brush to move in a straight line towards the off-hand controller. You can curve the line by using your off-hand controller to control the stroke's direction while using your main-hand controller to move the cursor closer to the off-hand controller and control the stroke's orientation. {% embed url="" %} ### Revolver The Revolver adds a lathe function to the Wand Stroke Guide. Activate the Revolver by tapping the button marked with a bulls-eye icon while the Wand Stroke Guide is active. The radius of the revolving arc constraint is dependent on the distance between the main hand controller and the Wand Stroke Guide Axis. You can tap the bulls-eye button to adjust the radius. The revolver can also be made to automatically sweep around the axis by using the joystick. {% embed url="" %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.openbrush.app/user-guide/bimanual-input-and-revolver.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.