The ANR project ARROW deals with the technological problems that limit the productivity of robots when used for some industrial applications and with the validation of theoretical results by experimental tests. These applications require a very good accuracy and high acceleration capacities. ARROW is the continuation of the ANR project “Objectif 100g” and is part of the EquipEx, named RobotEx. Up to now, robot designers are constrained to choose between rapidity OR accuracy. This is due to the fact that on the one hand, high accelerations lead to physical phenomena that decrease the accuracy and, on the other hand, accurate machines are generally heavy and, as a result, quite slow. However, very fast and very accurate robots would lead to a productivity improvement for some applications such as laser cutting and microelectronics assembly. This is the main motivation of the project ARROW. The objective of ARROW is to design and manufacture robots that are able to reach 20g of acceleration with an absolute accuracy of 20µm in a parallelepipedic workspace of edge equal to 1m. Two main research axes, that are not separated, are defined: 1. Robot design: this axis focuses on the synthesis of new robot architectures, their evaluation at the preliminary design stage, the optimisation of their dimensions using their elastostatic, dynamic and elastodynamic models and on the final drawings. 2. Advanced control: this axis focuses on the determination of control laws to take advantage of the best performances of the designed robots in order to reach the required acceleration and accuracy. It should be mentioned that axes 1 and 2 are not decoupled. As a matter of fact, “control oriented” criterions will be defined for the robots dimension synthesis and control laws will be developed with regards to the chosen architectures. The main technological limitation that ARROW will contribute to solve concerns the definition of solutions for designing and controlling robots able to obtain the two antagonistic performances: rapidity and accuracy. The main associated scientific limitations that we will have to solve are: - the preliminary design of robots able to fulfil the design requirements. A this design step, there is no mathematical model for robots and a few quantitative performance criteria. Consequently, new indices will be proposed. - the definition of models, few time-consuming but able to give accurate results for the design stage and the robot control. - the optimal trajectory planning in order to minimize the vibrations. - the synthesis of an advanced control approach that will be able to optimally control the robot displacements. The three partners have complementary skills useful to succeed in ARROW project. The IRCCyN members are well-known for their research works on modelling and identification of robots as well as on the type-synthesis and analysis of robot architectures. The LIRMM members are also well-known in the robotic field and have a very good experience in robot design and control. Tecnalia is a R&D centre and have been working on parallel architectures for more than 25 years. This technological centre has shown through numerous research projects in collaboration with university parters that it is a complementary partner able to accelerate the academic developments and help them reach the industrial market. Finally, during the ARROW project, theoretical and experimental results on the design of fast and accurate robots will be developed. The experiments will highlight the most significant results in the domain of high-speed robotics and will help the technological transfer in this field.