1/2 Conduit Steel Pipe Holder For Household Uses

This is a holder for 1/2 Conduit Steel Pipe which you can buy at the local hardware store for less then 3$ for 10ft. The top slips over after installation of the rod to secure it from bouncing up or falling off.
Analysis of this rod holder should support 30N of weight without deflection. Anymore i would worry about bending moment or shearing at the screw mount. Also depends on plastic type and how good of printer.
The tolerances are .2mm; most printers will do this in ultra fine settings. Ple