Ditch the threaded rod in your RepRap 3D printer and upgrade to a lead screw z-axis

provided 3D printable files and a detailed walkthrough for upgrading the Z-axis of a Prusa i3 RepRap 3D printer with a lead screw.

Steel Dynamics to Acquire Vulcan Threaded Products to Expand Finishing

"During 2015, we identified the pursuit of higher-margin
downstream business opportunities that utilize our steel products
in their manufacturing processes, as one of our target growth

India wins US anti-dumping case on steel threaded rod

WASHINGTON, AUG 7: An independent US quasi-judicial federal agency has ruled against imposing any anti-dumping duty against certain categories of steel threaded rod from India.

Ditch the threaded rod in your RepRap 3D printer and upgrade to a lead screw z-axis

provided 3D printable files and a detailed walkthrough for upgrading the Z-axis of a Prusa i3 RepRap 3D printer with a lead screw.