JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. Stretch Component Used to stretch duct and pipe components by manipulating their endpoints. Accessed from: Ribbon: AECOsim > Modify > Modify > Move Mechanical > Stretch Component Key-in: bmech manipulate stretch < dsc=hvac > < dsc=PLUMBING > To stretch a duct / pipe Parent topic: Manipulating Mechanical System