I found this gardena water rocket nozzle and designed a launch facility for it
I used an Anycubic Kossel Plus for all parts
I printed the nozzle with 0.1 mm layer height and 100% infill for safety reasons.
The other parts were printed with 0.3 mm layer height, 30% infill, 3 perimeters and 3 top and bottom layers.
everything was printed in standard PLA
To build this launcher, some additional things are needed:
- one Gardena hose adaptor
- one or more tap connectors, to get the seals for the nozzles
- a few meter garden hose
- a few meter string
- 5 thin pegs
- one Dunlop bicycle valve
- a bicycle pump with a pressure gauge
- screw the Gardena Adaptor into the platform
- put the bracket on top and align the small holes with the holes of the platform
- attach 2 strings to the bracket and route them through the small holes of the platform
- glue the valve adaptor into one end of the garden hose.
- put the valve into the adaptor (you can glue it in too, but be careful not to damage the valve)
- attach the other end of the hose to the bottom of the gardena adaptor
- put one of the pegs through the small holes at the side of two legs, its for routing the string out to the side
- use the other 4 pegs to fix the platform to the ground.