Customized version of https://www.thingiverse.com/thing:976416

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=976416

Using the following options:

Spring_Length = 35
Spring_Outer_Diameter = 25
Spring_Wire_Diameter = 3
Spring_Windings = 3
Spring_Coarseness = 80
Printing_Helper = No
Proofread_Spring_Diameter = No
Spring_Left_End = 3
Left_Hole_Diameter = 16.4
Left_Hole_Type = 100
Spring_Right_End = 3
Right_Hole_Diameter = 16.4
Right_Hole_Type = 100