This Orbit sprinkler has a heart-shaped cam driven by (I presume) an impeller inside the sprinkler body. the cam drives an L shaped connector with two studs on the ends. The connector then saves the bar back and forth, which controls the direction of the spraying water.
https://www.instagram.com/p/BX3siccn5Vz/?taken-by=imakerobots
My sister gave me the sprinkler when one of the studs had worn off. I took a few tries to get the tollerances just right, but I got it. Interesting to note that the original piece could have had much tougher studs but the designers chose not to. Design for failure?
https://www.instagram.com/p/BX4TNIJg2AT/?taken-by=imakerobots
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Printer Brand:
Prusa
Printer:
i3 MK2S
Rafts:
No
Supports:
No
Resolution:
200um
Infill:
20%
Notes:
I flipped the model over before printing.
Fusion360
I also made sure to print out a 1:1 drawing and compare it to the original part to check that my caliper measurements were OK. Still took three prints to get it right! Those are some tight tolerances.
Category: Outdoor & GardenThe author marked this model as their own original creation. Imported from Thingiverse.