Ender 3 (or any 40xx extrusion) spring feet damper

thingiverse

Damper Feet for Ender 3, also compatible with other 40xx extrusions. The performance of this model can be optimized by using either four or five springs, or by selecting a spring with different hardness levels. *2019/8/8 Update:* - A new version featuring 16mm compatibility has been added, allowing for the use of 16x20 mm springs. Various springs with varying stiffness are available on Aliexpress at https://www.aliexpress.com/item/32962540604.html. - An updated design now supports rubber feet. Required Parts (10mm Version): * Top (3D print) * Bottom (3D print) * Four 10mm outer diameter springs * Two rubber bands * Two M3 hammerhead nuts * Two 10mm length M3 bolts Required Parts (16mm Version): * Top (3D print) * Bottom (3D print) * Four 16mm outer diameter springs * Two rubber bands * Two M3 hammerhead nuts * Two 6mm length M3 bolts Required Parts (Fixed Version): * Top (3D print) * A single piece of 35x35 mm rubber