The springs are used in 3D printers for different reasons, the main one is for elements that require a certain pressure, such as the extruder tensioner. In this way, the tension adapts to the differences of the filament diameter.Also used for items that require adjustment, such as the heatedbed...
Hobbed Bolt for 3D printer, based on Reprap community design: http://reprap.org/wiki/Wade's_Geared_Extruder#The_Hobbed_Bolt
M8 x 60mm knurled at a standard meassure, 25mm from
the head of the bolt aproximately. This features are adapted to the
last versions of Greg's Wade extrud..
Prusa i3 Rework Nuts and Bolts:Bolts:41 x M3x143 x M3x244 x M3x306 x M4x201 x M8x30Washers:53 x M3 (12 x DIN 9021)6 x M834 x M10 (4 x DIN 9021)Nuts:33 x M36 x M42 x M5 (stainless steel)1 x M834x M10Extra:4 x Heated BedSpecial Hardware Set Kit:Hobbed Bolt:More info2 x M3x40 partially t..
WILSON NUTS AND BOLTSComposition: -51x M5x8-51x M5 T Slot Nuts -4x M5 T Slot Nuts (They can be inseted after the mounting)-2x M5 Nuts-7x M4x20 + 7x M4 Nuts-11x M3x10-24x M3x14 (Black and allen)-10x M3x30-18x M3 Nuts ..
Special Hardware Set: 2x M3x40 Partially threated bolts with
springsM8x20 setscrew for the extruder
idlerM3x10 setscrew small
nuts (in black or white) for Z axis. It is a great improvement, as nylon has an excelent abrasion resistance,
also provides a s..