Fort-building Connector

Connector to expand a fort-building kit for kids. Each knot is printed in two halves connected by glueing. Compared to the original ones they are reinforced with additional struts. I used Bambu Lab PLA tough + in orange. The End plugs can be glued on pipes with 16 mm outside diameter. I have taken this measurement to fit for EN16 / M16 pipes which are used for electric surface installation. They are very cheap to buy in a hardware-store and the stability is similar to the original ones (green in the picture). The optimal length to saw is 376 mm.