The first ROBOMINERS-organised clustering event was held on 4th June. This was an online meeting, where the ROBOMINERS team met with other EU-funded projects (Horizon2020 and EIT RawMaterials) to share experiences and ideas, and create synergies for future collaboration on topics of relevance for the implementation of such projects.

The clustering event started with a welcome note and introduction by ROBOMINERS coordinator Claudio Rossi. The project’s objectives, approach, development, and implementation plans were shown to the participants.  To this, the other projects’ presentations followed, in order to have everyone at the same knowledge-level. The clustered projects included: AlSiCal, Badger, CHPM2030, Dig_IT, ION4RAW, Real-Time mining, UNEXUP, X-Mine.

A Questions & Answers session, moderated by ROBOMINERS, created the opportunity to ask questions about the work done within the projects, identify common challenges and issues, and align ideas for collaboration.

This event results from the clustering efforts that have been made since the beginning of ROBOMINERS. More clustering events – online and in person – can be expected for the future.

If you are interested in learning more about ROBOMINERS and exchange information, please contact us!

On 18 February, the ROBOMINERS project organised a webinar on “Small and very-small scale robotic mining: deposit types and opportunities for Europe”.

The recording is now available on our YouTube channel and you may download the presentations here:

The ROBOMINERS project invites you to meet the team which is developing the bio-inspired modular robot miner aiming at facilitating EU access to mineral raw materials.
We have recently started an interview series with some of the partners. To start with, meet:

Project partners have submitted a session on ‘Automation and robotics for raw materials exploration and production’ at the virtual EGU 2021 General Assembly (#vEGU2021). The session targets current research helping operation of an autonomous or semi-autonomous underground platform in mineral exploration or extraction.

✔ Visit https://egu.eu/1460U1/ and take a look at the Provisional Programme.
✔ For information on how to submit the abstract visit: https://lnkd.in/eQbyFYW
✔ Submit your abstracts at the following link: https://lnkd.in/eCsN7Up

Make sure you submit your abstract by 13 January 2021 at 13:00 CET!

In October 2020, ROBOMINERS has been presented at the virtual edition of the Global Robot Expo at the stand of the project coordinator, the Universidad Politécnica de Madrid, CAR UPM-CSIC.

Check out our virtual presentation!

 

 

A contribution from Christian Burlet, Geological Survey of Belgium (GSB) / Royal Belgian-Institute of Natural Sciences (RBINS)

 

During April, May and June, the first ‘proof of concept’ experiment was planned at RBINS, to demonstrate the use of LIBS (Laser-induced breakdown Spectroscopy) to perform real-time diagnostics on drilling slurries inside the mineralogical module of ROBOMINERS.

LIBS (Laser-Induced Breakdown Spectroscopy) is an emission spectroscopy technique that uses high-energy laser pulses to induce a plasma from solid, liquid or gas samples. The plasma emits specific light wavelengths related to the chemical composition of the target material with specific spectral lines for each element contained in the plasma and thus in the sample.

Using a LIBS spectrometer inside a working robotic miner and process it in real-time to achieve some degree of selective mining presents many challenges. Being in confinement for an undetermined amount of time, I decided to move some equipment home to be able to continue prototyping hardware and software. It turned out that with a few basic tools and a desktop 3D printer, it is totally possible to keep busy for weeks testing and adapting as many setups as possible and comparing the results like in a real lab!

Example of a 3D printed optical piece designed and 3D printed at home (here the LIBS head with holes for LED lights and synchronization detector)

From mid-March to the end of April, I decided to focus on an experimental LIBS spectrometer that will be used to acquire libs scans of geological samples and cores. In the project, we planned to base this LIBS scanner on a full sized Computer Numerical Control (CNC) machine (ordered but not yet delivered due to the pandemic), as a backup solution, a small cheap CNC device served as a base for the first version of the scanner. During the 2 months of confinement, the small CNC was beefed-up with new motors, and a new custom “Z-axis” was designed from scratch and 3D-printed to fit the optical components (see the evolution of the LIBS scanner in pictures).

Evolutions of the ROBOMINERS LIBS scanner during March-April 2020

Powered by the open-source GRBL software, and a custom python script, the CNC allows a 1.25µm displacement resolution of the spectrometer head, with a repeatability that seems of a few microns (to be verified with SEM imagery later-on). One of the main goals of this experiment was to test a series of optical configurations to get the best signal from the sample, including a good UV signal collection in a so-called LIBS “co-linear” configuration. This configuration needs a custom optical part, a 45° pieced aluminium mirror. Unfortunately, after contacting the manufacturer, this kind of custom part could not be ordered, as the workshops were closed for an undetermined time. Another homemade solution was found, temporarily remounting the CNC to its original purpose and installing it in my kitchen’s apartment in order to drill a hole on a stock mirror as precisely as possible with a diamond bit. After hours of setup and tests, the result was not perfect but totally usable!

Optical kitchen: Making the custom mirror at home

The first spectra acquired (a linear scan on Cu-Co ore sample lying around) are extremely promising, with an excellent signal in the UV (200-400nm), both in collinear and angular collection configuration (see spectra examples).

The next big step is to perform a 1D and 2D LIBS scans data treatment and produce chemical profiles and imagery of ROBOMINERS analogue samples.

LIBS spectra examples

The ROBOMINERS video has just been launched! It is presented this week at the EU booth at PDAC (booth 7123N). If you don’t have the occasion to drop by, watch the video here:

ROBOMINERS partners from the Montan Universität Leoben, Tampere University and TalTech recently met in Leoben (Austria) for a workshop about different options for the production tools of the robot miner, the water-hydraulic power train system and the locomotion. The partners then travelled to Mittersill in Salzburg to visit the local tungsten mine. This tungsten mine […]

On 14 and 15 January 2020, the partners of the EU-funded ROBOMINERS project gathered in Tallinn, Estonia, to discuss the current state of work and define potential scenarios for the robot miner design and application, taking into consideration both economic and political factors such as the need for certain commodities or their criticality in the EU. By developing a bio-inspired robot for mining deposits that are small or difficult to access, ROBOMINERS aims at facilitating EU access to mineral raw materials – including those that are considered as strategic or critical for the energy transition – from domestic resources, and thus decreasing the European import dependency.

The first day, the partners updated each other about the progress of their investigations with a focus on the locomotion of the bio-inspired robot, the future miner’s design and the robot platform’s software. Some of the key aspects involved the robot’s water hydraulics, artificial muscles, pressure compensation, the cutter head system and the power system. Towards the end of the project, ROBOMINERS aims indeed at presenting a full-scale prototype which will demonstrate the mining process.

The experts from the robotics community also presented their draft concept for the robot, whereas the geology and mining experts came up with a preliminary selection of mineral deposit types and scenarios appropriate for the ROBOMINERS technology. Based on a genetic classification of ore types, participants ranked deposits according to the most relevant aspects such as geometry, rock mechanics, stability, extractability and economics. The partners listed different scenarios as well as potential test sites. These scenarios involve ultra-deep deposits; small, non-economic deposits with a minimum surface footprint; hazardous or not accessible environments; and abandoned mines or non-economic parts of operating mines. The final classification of the scenarios and deposit types is expected to be available in spring 2020.

On 15 January, the consortium meeting continued with a workshop on bio-inspired legged locomotion where robotic experts from TalTech University and the Universidad Politécnica de Madrid (UPM) shared highlights of their current research considered as relevant for the development of the robot miner. This included the presentation of different bio-inspired robotic concepts and various legged robots and their technical complexity by the TalTech team. Specialists from UPM presented a modular climber robot planned to be used for infrastructure inspections which has a variable number of legs and can reassemble its modules autonomously. The workshop concluded with a presentation by ROBOMINERS coordinator Claudio Rossi on energy efficient legged locomotion.

This highly technical session was followed by an Advisory Board meeting involving external experts from the mining industry, and an interactive roadmapping workshop led by La Palma Research Centre for Future Studies (LPRC). The participants discussed the 2030 and 2050 horizon for ROBOMINERS in close alignment with the EU policy vision. The input received will be used for further foresight exercises. The meeting concluded with a guided visit at the Centre for Biorobotics of TalTech University.