3D Printer Belt Tensioner Spring
You can use the spring with GT2 belt in your 3D printers and it will help you tension the belt.
Can be mounted on a belt system already installed in place. 3D Printer Belt Tensioner Spring absorbs some of the belt's vibration and prevents the belts from resonating as they move.
Technical Specifications
Compatible with GT2 timing belts (7mm wide)
Absorbs belt vibration
Allows belt tensioning helps
Can be mounted on belts