Lightning H Field Loop Antenna Fittings

{This design is little old - more effective(&smaller) loop antennas are described on the website below or see my new interpretation at http://www.thingiverse.com/thing:1792866 }
Attached STL's are junction fittings used in the construction of a H Field loop antenna as part of a lightning detection system. The 2 junction fittings secure in the semicircular Copper tube that house the Copper Wire loops. Other plastic parts should be available from hardware stores. I have used the Design schematics