This compression spring is ideal for 3D printing of the purefil ceramic filaments and any elastic materials such as TPU, TPC, PLA soft ect.
Due to the reduced contact pressure, there is significantly less pressure on the filament and accordingly the elastic materials can also be processed very reliably with normal Bowden extruders.
This compression spring fits in almost every feeder from well-known manufacturers such as Creality Ender 3, Ender 3 Pro, Ender 3V2, Longer3D LK1, LK4pro, LK5pro, Cube 2.0 and many more.
Material 1.4310 rustproof
d = wire thickness mm 0.63
D = mean coil diameter mm 6.30
Dd = largest mandrel diameter mm 5.20
Dh = smallest sleeve diameter in mm 7.60
Lo = Spring length when not stretched mm 25.50
R = spring rate, force in N per mm 0.64
n = number of effective turns +2=nt 8.50
Ln = smallest clamped length mm 7.96
sn = spring deflection up to the end of the working range mm 17.54
Fn = maximum spring force at
Ln N 11.781
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