In order to upgrade his Prusa i3, [Daniel] designed and printed his own z-axis carriages to use with the lead screw. If you have a Prusa i3 too, he’s uploaded the design files to Thingiverse .

The king of machine tools is the lathe, and if the king has a heart, it’s probably the leadscrew. That’s the bit that allows threading operations, arguably the most important job a lath… ...