Rotating garden sprinkler with Gardena adapter

For this competition, I thought that a rotating garden sprinkler system would be the right thing to do, and it would also be a real challenge. I'm glad I managed to post a functioning sprinkler on the last day. The individual parts require support to print. Unfortunately, this was unavoidable. However, I would advise you to deburr the parts carefully during post-processing, otherwise it could lead to problems. I chose PLA even though PETG is better suited to high outside temperatures. However, removing the support from PETG is not that easy. The O-rings, silicone grease, and screws are available from specialist retailers and online. HNBR (nitrile) O-rings cause less friction than rubber rings. The O-ring specifically for Gardena adapters can also be ordered from specialist retailers and online. The sprinkler works at a normal pressure of 2 bar. However, I don't know how it behaves at higher pressure.

Major Updates:

1) The threads on the spray nozzles have been reinforced. In some cases, the threads broke after a single use.
2) The upper half of the Gardena connector has been modified to minimize water flow back to the clamps. The previous O-ring has also been replaced with a larger O-ring.
3) The internal design of the T-cylinder has been modified to accommodate the Gardena connector.

Ultimate Update:

I finally managed to make the sprinkler watertight enough to allow proper operation. To do this, I added another seal and had to modify the Gardena adapter as well as the main T-cylinder.