First diving trip in the Baltic Sea

First diving trip in the Baltic Sea


We can’t wait! Preparations are in full swing.

After completion of all pressure tests at the Leibniz Institute for Baltic Sea Research, the first tests in the harbour basin are planned. The ROV will be completely assembled and equipped with all necessary functional modules.


First lab tests

First lab tests


Here are some impressions of our lab tests at the Leibniz-Institute for Baltic Sea Research. Now our ROV Drive Prototype is finally in its element and working great!

The nozzle and the propeller were manufactured with a 3D printer and were hydrodynamically optimized in CFD analyses for the drive of ROVs. In addition, the nominal speed and torque of our BLDC motor were adapted to the propeller.

The drive is extremely quiet and powerful. Calibrations with the motor controller could be carried out in the test basin without any problems. This was followed by various thrust tests with different hardware and software configurations. First test results already showed a thrust of 20 kgf at 1700 W input.

In the following revisions we will further increase the power and expect a thrust of more than 30 kgf.


Pressure tolerant motor controller

Pressure tolerant motor controller


For our pressure-neutral ROV drive prototype, we needed a suitable motor controller in addition to the BLDC motor. Here we decided to use the ODrive from ODrive Robotics. The design is compact, powerful and simply well thought out.

After all the adjustments to the electronic components for use in the deep sea, we were able to connect the controller to our BLDC motor and integrate it into the network of our ROV via our pressure-neutral Ethernet adapter. Furthermore, we can communicate with the controller via UART, USB and CAN BUS.

In combination with our BLDC motor we are able to develop high precision and powerful manipulators for the deep sea.


BLDC Motor prototyping

BLDC Motor prototyping


We developed a high-performance BLDC Motor for deep sea applications. Pressure tolerant and for the most parts 3D printed. Built up with a disc brake for some tests we get some very promising results. The fir­st motor could already take up an electrical power of 2 kw and achieved an efficiency of over 55% and a torque of more than 4 Nm in water. The cast rotor, stator and the ceramic ball bearings are surrounded by water during operation.

A high-resolution sensor is also integrated in the stator to perfectly match the motor to the motor controller. In this configuration it is possible to set different angular positions, angular speeds and accelerations via the motor controller.

This makes our high-performance BLDC motor a 3D printed stepper motor!

For our pressure-neutral ROV drive prototype, we needed a suitable motor controller in addition to the BLDC motor. Here we decided to use the ODrive from ODrive Robotics (link: www.odriverobotics.com). The design is compact, powerful and simply well thought out.

After all the adjustments to the electronic components for use in the deep sea, we were able to connect the controller to our BLDC motor and integrate it into the network of our ROV via our pressure-neutral Ethernet adapter. Furthermore, we can communicate with the controller via UART, USB and CAN BUS.

In combination with our BLDC motor we are able to develop high precision and powerful manipulators for the deep sea.


Begin of our scholarship

Begin of our scholarship


In the Summer of 2019, we celebrate the beginning of our scholarship at the Leibniz-Institute for Baltic Sea Research, in Rostock Warnemünde, Germany. The project was titled with the name UMDS-Robotics, from which we developed our brand FRAMEWORK ROBOTICS. We thank all those amazing people who support, promote and accompany us!

In the middle of the picture you can see one of our first 3D printed prototypes of the container module. We used this prototype for illustrative purposes and for some studies. Unfortunately, the material did not withstand the environmental impact. In this way we learned a lot and identified new resilient materials which are much better suited for our applications.


We configured our first ROV Prototyp

We configured our first ROV Prototyp


Based on the new container modules C260, we configure the first ROV for observation and measurements in the deep. This underwater system is reversable, extendable, portable, transformable, tough and sustainable.

95% of all structure-parts are made with 3D printers and as you can see our pressure tolerant BLDC ROV Drive with three nozzle propellers is already integrated. Due to the buoyancy foam, the depth rating is actually 1000 meters, so we can safely reach the deepest point in the Baltic Sea.

Soon we will show you more about our new BLDC nozzle propeller and the associated BLDC motor controller.