A cheap CNC build

OK I know there are alot of these out there.  What makes this different is the lead screw and brass nuts used are under $10.  I haven’t looked at getting that stuff from banggood.com before.  But I may this time.  This is pretty cheap.  Better than the ACME screw I typically use.

http://www.instructables.com/id/DIY-CNC-for-Less-of-160-With-Arduino/

Example screw:

http://www.banggood.com/400mm-T8-Lead-Screw-8mm-Thread-2mm-Pitch-Lead-Screw-with-Copper-Nut-3D-Printer-Z-Axis-p-979643.html