Bed Leveling Knob Anet A8

After printing some Bed Leveling Knobs from others, I was dissatisfied. All Bed Leveling Knobs are not fitting the wing nut. I Have make this small helping Thing new with extra space.

If you have a problem or an improvement for this thing please let me now it.

2019-01-23 Update:

Manual for the Knob:
- First read the Manual completely because in one installation of the Knob is no way back.

Installation 1
Print the four Knob´s and the Spring Houlder
Take of the wing nut.
Unscrew all of the long Bed Screw´s clockwise bit by bit to prevent that the sping will bend the Screw´s. (Pic 001)
Install the Spring, Spring Houlder (Pic 002) and screw in the Screw´s clockwise bit by bit on the Bed Support (Pic 003), to prevent that the sping will bend the Screw´s.
Install the Knob with the Wing Nut (Pic 004)
Bedleveling with an Screwdriver (like before)
Finish

Installation 2 (No way back)
Print the four Knob´s and the Springhoulder
Take of the wing nut.
Unscrew all of the l