I apologize for the print quality, I did this very fast just for demonstration. I didn't even level my bed.

I have never seen anybody using filament springs but I believe it has a great potential for mechanical models.

Try it out! Making the spring need some practice, don't be discouraged!

Filament hinge holds the device together.

No support needed, 0.2 layer height is good.

The spring you make should be around 45 mm, if you fill out the spring guide provided it should fit perfectly.

I will make an upgraded design for my Patreons.