These stainless steel springs work perfectly in the Z-Axis of the Prusa and Mendel Repraps. They push the Z-Axis nuts apart to eliminate backlash in the threaded drive.
Uncompressed length: 35mm
Outer Dia: 12mm - Inner Dia: 9.75mm - Wire Dia: 1.08mm
Compresses to roughly 1/2 length under 2.5kg of weight (25N) More
Linear Rod - Twin Pack - 12mm dia. 330mm long - Chrome Hardened
This steel rod has a hardened, chromed, outer layer. It is used with linear bearings and bearing blocks.
Diameter: 12mm (Tolerance 0 to -0.3mm)
Length: 330mm - Compatable with the Printrbot Plus v2.1
Weight: 0.89 (kg/m)
Hardened Outer depth: 0.6-1.5mm
Material: Gcr15 steel
Hardness: HRC60-HRC62 More
This stainless steel rod has been professionally rolled so the threads are good right to the end without burrs.
You need 2 rods for the Z-Axis leadscrews on a RepRap Mendel, so buy 1 pair if you are making one of these
Bilby 3D Pty. Ltd. Phone 1800-847-333 International +61 2 8197 3928
Australian Distributors of desktop sized 3D printers (FlashForge, Roland, Da Vinci, Repraps, Makerbot & UP printers), 3D Scanners, Tools & Parts
Sydney: 23/110 Bourke Rd, Alexandria, NSW 2015, Australia
Brisbane: 2/474 Upper Edward St, Spring Hill, QLD 4000
Melbourne: Coming to Victoria Feb/Mar 2017
Bega Head Office: 452 Wyndham Lane, Kanoona 2550