Watertight innovation.

3D Printed Water Meter
To increase its competitive edge, Arad looked to PolyJet 3D printing to help develop smart water meters. Bringing the technology in-house means quickly 3D printing prototypes. More interestingly, it also enables Arad to 3D print injection molds for low-volume runs, which means functional testing can take place with the intended production material and process.

3D printed injection molds.

Demanding requirements govern the design, testing, and production of the watertight components that protect electronics. The ultrasonic welding required to seal the parts together can only be tested on real components in the final material, typically produced using an aluminum test mold or even the final steel mold. These metal molds cost $5,000-$20,000 and take four weeks to three months to produce. If the welding trial reveals needed design improvements, the mold- making process starts again and the cost multiplies.
Water meter in 3D printer
Instead, Arad now creates injection molds using its PolyJet 3D printer. The design includes a step joint for the welding process, which provides high strength and good aesthetics since the welding melt partially encapsulates the joint. The molds are 3D printed using Digital ABS material in four parts: the core, cavity, and two inserts to create the negative draft. The total printing time is just 10 hours.
Water meter on machine
“3D printing injection molds enabled us to quickly produce functional prototypes that we could test in the field, dramatically reducing our time to market”
Avi Zelig, mechanical engineer, Arad Group

Ready for welding.

Get a first-hand look at how Arad Group can quickly produce functional prototypes to test in the field with 3D printing injection molding, and thus dramatically reducing their time to market