Tape Measure Yagi

Hi, these little things slide down a 21.5mm overflow pipe (which forms a boom) and hold tape measure cut into lengths to make a yagi for amateur radio.

I used 6 sets to make a 11db gain antenna for 144MHz (the 2m band) for a competition.

These are the dimensions I used to make my yagi:
https://m0ukd.com/homebrew/antennas/144mhz-2m-portable-yagi-vhf-beam-antenna/

The overflow pipe I used was from B&Q:

https://www.diy.com/departments/floplast-overflow-waste-pipe-dia-21-5mm-white/109187_BQ.prd

And the tape measure was 2 of these budget tape measures (12mm width):

https://www.diy.com/departments/3m-tape-measure/1780202_BQ.prd

For a mast adapter see this:

https://www.thingiverse.com/thing:2955775

This one part is a one fit for all... use the same part for driven element and all the directors/reflector. It has a hole for the coax to enter into it for the driven element... the lid helps to keep things square and straight.

This should require no support when prin