Ultimate creality cr10 extruder (happy edition) (flexible filaments)

update: added springcap2, should work with creality spring without problems

made this feeder beacause I dont find the creality one solid or good for me,and had problem with the metal one. modified for my needs, m4 screw to adjust spring pressure, ptfe tube to avoid the lead screw, cover to improve the lever strenght and also for better cable management.
not tested but should beable to print flexible filament without problems :)
#parts needed:
2-m3x30
1-m3x25
1-m3x(7mm I think u can use