Summary

This is a simple holder for making a helical antenna for frequencies in the 1.3 GHz range
Be sure to check the instructions!

Update: The base had an error, fixed

Update 2: added both polarisations

Instructions

Needed supplies:

Solid copper wire, with or without mantle (depending on the fit)
A matching stub, made according to this tutorial:
http://www.rcgroups.com/forums/showthread.php?t=1377791
Antenna reflector, see above link
50 ohm Coax wire
4x short m3 screw and nut (alternatively, good glue)

Print 1 base, print 4 modules per turn.
Warning: Remove the triangular support from the slot and clean up any residu.
They should then slide into each other firmly, at 90 degrees of one another, you may or may not want to use glue (with more than 3 turns i'd use glue)

Coil the wire around something round and then insert it into the holders, dab of CA and they will stay in place firmly.
Screw the base to the reflector with m3 screws or glue it.

Pictures will follow

1,3 GHz helical RHCP/LHCP antenna