Emm... spring loaded............

I just happened to love printed spring, so I made this just to see if it works or not.

printed in PLA, but ABS should have a better temperature resistance.

the tension is slightly adjustable, just insert some paper between the spring and the holder.
I'm trying to see if I can make it adjustable by some screw and bolt, but that might take some time.

The tail of the spring is kinda difficult to print, it sometimes just warp or pops up.

print first layer slower (I printed the first layer @ 15mm/s) with a higher temperature (220c)
then finish the print @ 6080mm/s & 190c195c.

I did a 100% infill, because I think that look good with transparent PLA.
but 25~40% infill should be enough for this.