Download Free 3D Model Pool Robot Water Outflow Nozzle 3D Print Model

Summary
This optimized water outflow nozzel was designed to improve water throughput of the Maytronics DOPLHIN Dynamic Plus pool cleaning robot. Especially cleaning steep walls, the robot has to provide good suction which directly depends on its flow rate.
I designed the part with Sketchup, sliced it with Simplify 3D and printed it with a German RepRap X400 Pro printer. I finally came to PLA (black colored due to better outdoor resistance compared to semi-transparent PLA) after four flops with ABS (warping).
Print Settings
Printer:
German RepRap X400 Rafts:
No Supports:
Yes Resolution:
0.22 mm Infill:
25% Notes:
Printed with 1.75 mm PLA (Black) by German RepRap with a 0.4 mm Nozzle.
Nozzle temp was 193°C, heated bed temp was 58°C.
First layer speed reduction set to 20%. Default printing speed was set to 2000 mm/min. Layer thickness was set to 0.22 mm.
I used a brim (1 layer) with 15 turns.
Thin walls were prohibited to be filled with infill.
Three outline perimeter were used. Printing time was about 4 hrs (exclusive preheating machine).
Post-Printing
Optimized water outflow nozzle for Maytronics pool robot DOLPHIN Dynamic Plus
In order to improve water thoughput of the robot for more efficient cleaning I re-designed the original part with a slightly longer tube with funnel shape. In opposition to the original part this new design encloses the propeller entirely. Due to the higher tightness between propeller and outflow an better flow guiding, an improved water throughput can be assumed.
First 5 testruns of the robot looked very promising.
Presumably this thing could fit also for other Maytronics pool robots.
How I Designed This
Made with Trimble (Google) Sketchup
The part was fully designed by the help of Sketchup Pro 2017. Difficulties with the bended blades inside the funnel were solved by the very helpful plugin “Bezier Surface”.