In addition to assembling the components, NASA technicians tested the rover's ability to operate in near vacuum and extremely low temperatures.
The six wheels, which are currently installed in this fire, are a temporary engineering version, which will be replaced by the flight model before the Mars 2020 detector is finally assembled and installed on the launcher. Now this set of 20.7 "(52.5 cm) wheels is an upgraded version of the "curiosity number" detector wheel. It is understood that the curious wheel has been subject to unexpected wear since its landing on Mars in 2012.
Mars 2020 draws heavily on curiosity
Like the Curiosity, the wheels of the Mars2020 detector are made of aluminum, but they are thicker, smaller, wider, and are equipped with stronger cleats or friction devices. Each wheel is powered independently, and the 48 metal piles above it provide better traction. At the same time, the front and rear wheels have independent steering motors that support 360-degree full rotation. In addition, this detector can handle any 45-degree ramp and can travel at 499 feet per hour(152 m/h).
Mars 2020 plans to launch in July 2020.
"After years of design, analysis and testing, it's amazing to see the detector on her wheel for the first time," said Ben Riggs, mechanical systems engineer at Mars 2020. The whole team is looking forward to seeing her in the same shape on Mars in the near future. "
The time-delay video shows the process of installing the Mars 2020 detector on the wheel