Closed 10bn closed 1 year ago
He have mentioned in his first video: https://youtu.be/7DKmMXRq_Xc?t=221
It's a 3D printer bed spring, super popular with Ender3 printers. "3d printer bed spring" just search for this on Aliexpress.
As S0ound wrote above look for 3D printer spring. Take care of the dimensions.
What kind of spring did you use?