Ham / CB Crossarm Mountings

**Now tested and working!****
**Added 25mm to 25mm Tube attachment (6-9-2015)
**Added 25mm to 20mm Tube adaptor (6-9-2015)

25 to 25mm - printed in ABS - not tested on PLA yet.
25 to 20mm Printed in ABS, not tested on PLA yet
25mm tube to 19mm Box - printed in ABS and PLA - Both ok.
19mm Box to UHF Base, printed in ABS and PLA - Both ok.


Designed to fit 25mm "Jpole" (aka Hockey Stick) poles.
Typically the kind of thing you see attached to awnings or eves, with a TV antenna attached.

see this image: https://www.telcoantennas.com.au/site/sites/default/files/imagecache/product_full/antenna-J-pole-hockey-stick-gutter-fascia-bracket-mount.png

The desirable cross-arm would be aluminium 19mm box tube.

You will want a handfull of assorted stainless 3mm nuts and bolts as well.

I designed this to use a standard UHF antenna base with 10mm square "keyway" on the stub.

It's not hard for me to design different mountings to your need - or you can download inventor par