3 simple joining methods for building a garden frame to grow raspberries

I used a set of cheap aluminium poles and printed the joints out to make  a study frame. The simpler of the 3 designs shows one point with a hexagon stand which I used to mount a solar PV panel on for garden lights

The simpler version lasted a year but have just updated to the more robust design adding a second PV mount

Note - hopefully its obvious but you only need to print out one set of joints for each system and not the poles - poles just shown for info