Academic literature on the topic 'CAD; Simulation; Mathcad'

Improving methods of designing technological machines mechanisms of light industry in CAD-programs. The analytical method of vector transformation of coordinates for calculation of typical mechanisms of technological machines and a numerical method for solving differential equations are used. Mathematical models describing the functions of the position of the moving links and the characteristic points of the multi-link mechanism of the thread take-up mechanism for the sewing machine and the dynamics of its operation are obtained. Schematic modeling of the mechanism in the Mathcad program was performed. The graphs of the dependence of the angular velocity and acceleration on time and on the angle of rotation of the crank mechanism. The algorithm of numerical and analytical investigation of the dynamics of the flat six-link articulated mechanism of the thread take-up of the sewing machine is proposed on the basis of the numerical solution of the differential equation of motion of the mechanism and a computer simulation of the mechanism in the program Mathcad. Practical Value is to use the results of research in kinematic and dynamic study of the target sewing machine mechanisms.

Context. Self-Timed Circuits, proposed by D. Muller on the rise of the digital era, continues to excite researchers’ minds. These circuits started with the task of improving performance by taking into account real delays. Then Self-Timed Circuits have moved into the field of green computing. At last, they are currently positioned mainly in the field of fault tolerance. There is much redundancy in Self-Timed Circuits. It is believed that Self-Timed Circuits approaches will be in demand in the nano-circuitry when a synchronous approach becomes impossible. Strictly Self-Timed Circuits check transition process completion for each gate’s output. For this, they use so-called D. Muller elements (C-elements, hysteresis flip-flops, G-flip-flops). Usually, Self-Timed Circuits are designed on Uncommitted Logic Array. Now an extensive base of Uncommitted Logic Array Self-Timed gates exists. It is believed that SelfTimed Circuits are not compatible with FPGA technology. However, attempts to create self-timed FPGAs do not stop. The article proposes a Self-Timed Lookup Table for the Self-Timed Uncommitted Logic Array and the Self-Timed FPGA, carried out either by constants or utilizing additional memory cells. Authors proposed 1,2 – Self-Timed Lookup Table and described simulation results.
 Objective. The work’s goal is the analysis and design of the Strictly Self-Timed universal logic element based on Uncommitted Logic Array cells and pass-transistors circuits.
 Methods. Analysis and synthesis of the Strictly Self-Timed circuits with Boolean algebra. Simulation of the proposed element in the CAD “ARC”, TRANAL program, system NI Multisim by National Instruments Electronics Workbench Group, and layout design by Microwind. The reliability theory and reliability calculations in PTC Mathcad.
 Results. Authors designed, analyzed, and proved the Self-Timed Lookup Table’s workability for the Uncommitted Logic Arrays and FPGAs. Layouts of the novel logic gates are ready for manufacturing.
 Conclusions. The conducted studies allow us to use proposed circuits in perspective digital devices.

The problem of ensuring the frame strength of missile and bombing gear of the Ми-8МСБ-В helicopter pylon in the course of testing is considered. The methods of calculation of the frame strength at maximum load are developed to solve this problem; as well as modeling of design for the main operating modes of the helicopter is conducted.
 Previously, on the basis of force factors the loading coefficients of the helicopter on its operational modes are determined, particularly in combat use (dive with a volley of missiles and bombing).
 While conducting modeling the advanced methods of calculating the design of the frame strength parameters were applied, i.e. the analytical manual calculation and computational programs of computer-aided design (CAD). Manually calculating the forces and stresses in the framework (using cut nodes) the frame was idealized as rod model with hinged connections of the elements in the nodes A system of equations for each node was formed, which were solved in MathCAD. In the automated calculation of forces and stresses in the design of the frame the finite element method was implemented, which is used in WinMachine programs and SolidWorks Modeling.
 The mathematical modeling of the frame was made at the maximum anticipated in-flight loads for determination the critical force and the maximum stress in the construction elements. In addition, the analysis for the redundant deformation was carried out.
 Performed calculations, mathematical and simulation modelling proved that the necessary strength requirements are met for all the elements of the frame under its maximum load in all flight operational modes.

Von der Professur Montage- und Handhabungstechnik der Fakultät für Maschinenbau der Technischen Universität Chemnitz wird seit 2009 das jährliche Simulationsanwendertreffen SAXSIM organisiert. Ausgewählte Beiträge werden in Form eines Tagungsbandes veröffentlicht. Das 4. Anwendertreffen SAXSIM fand am 17.04.2012 an der TU Chemnitz statt. Zum dritten Mal wurde diese Veranstaltung durch einen Mathcad Workshop am 16.04.2012 ergänzt, dessen Beiträge ebenfalls hinterlegt sind.

Der Vortrag beschäftigt sich mit der Simulation von Handhabungs- Montage- und Fertigungsaufgaben mit Hilfe von einem bzw. mehreren miteinander zusammenarbeitender Industrieroboter. Es werden Möglichkeiten aufgezeigt, wie die Herangehensweise für den Aufbau einer solchen Simulation ist. Weiterhin wird auf das Thema der Glättung von Unstetigkeiten nach verschiedenen Verfahren und deren Auswirkung auf die Bahntrajektorie eingegangen.

Der Vortrag zeigt dem Anwender CAD basierter Mehrkörpersimulationssoftware, wie dieser durch zwei einfache dynamische Simulationen das reduzierte Massenträgheitsmoment eines ungleichmäßig übersetzenden Getriebes ermitteln kann. Hierbei wird zunächst das Antriebsmoment unter konstanter Antriebsgeschwindigkeit und konstanter Antriebsbeschleunigung ermittelt, aufbereitet und anschließend in die Bewegungsgleichung der starren Maschine eingesetzt. Der Verlauf des reduzierten Massenträgheitsmoments wird für weiterführende Berechnungen (z.B. elektromotorische Antriebsauslegung oder Torque Feedback Simulationen) als Furier-Reihe zur Verfügung gestellt.

Das 5. Anwendertreffen SAXSIM fand am 23.04.2013 an der TU Chemnitz statt. Zum vierten Mal wurde diese Veranstaltung durch einen Mathcad Workshop am 22.04.2013 ergänzt, dessen Beiträge ebenfalls hinterlegt sind.

Von der Professur Montage- und Handhabungstechnik der Fakultät für Maschinenbau der Technischen Universität Chemnitz wird seit 2009 das jährliche Simulationsanwendertreffen SAXSIM organisiert. Ausgewählte Beiträge werden in Form eines Tagungsbandes veröffentlicht. Das 2. Anwendertreffen SAXSIM fand am 27.04.2010 an der TU Chemnitz statt. Erstmals wurde diese Veranstaltung durch einen Mathcad Workshop am 26.04.2010 ergänzt, dessen Beiträge ebenfalls hinterlegt sind.

Von der Professur Montage- und Handhabungstechnik der Fakultät für Maschinenbau der Technischen Universität Chemnitz wird seit 2009 das jährliche Simulationsanwendertreffen SAXSIM organisiert. Ausgewählte Beiträge werden in Form eines Tagungsbandes veröffentlicht. Das 3. Anwendertreffen SAXSIM fand am 19.04.2011 an der TU Chemnitz statt. Zum zweiten Mal wurde diese Veranstaltung durch einen Mathcad Workshop am 18.04.2011 ergänzt, dessen Beiträge ebenfalls hinterlegt sind.

Von der Professur Montage- und Handhabungstechnik der Fakultät für Maschinenbau der Technischen Universität Chemnitz wird seit 2009 das jährliche Simulationsanwendertreffen SAXSIM organisiert. Ausgewählte Beiträge werden in Form eines Tagungsbandes veröffentlicht. Das 8. Anwendertreffen SAXSIM fand am 22.03.2016 an der TU Chemnitz statt.<br>The Chair of Assembly and Handling Technology, which belongs to the Faculty of Mechanical Engineering, has organized the annual simulation user meeting SAXSIM since 2009. Select contributions will be published in conference proceedings. The 8th SAXSIM user meeting took place at Technische Universität Chemnitz on March 22, 2016.

Von der Professur Montage- und Handhabungstechnik der Fakultät für Maschinenbau der Technischen Universität Chemnitz wird seit 2009 das jährliche Simulationsanwendertreffen SAXSIM organisiert. Ausgewählte Beiträge werden in Form eines Tagungsbandes veröffentlicht. Das 7. Anwendertreffen SAXSIM fand am 31.03.2015 an der TU Chemnitz statt.

Von der Professur Montage- und Handhabungstechnik der Fakultät für Maschinenbau der Technischen Universität Chemnitz wird seit 2009 das jährliche Simulationsanwendertreffen SAXSIM organisiert. Ausgewählte Beiträge werden in Form eines Tagungsbandes veröffentlicht. Das 9. Anwendertreffen SAXSIM fand am 28.03.2017 an der TU Chemnitz statt.:- Multiphysikalische Systemsimulation mit SimulationX / Adam Burkhard - Modellierung & Simulation des Plasmaschweißens zur Entwicklung innovativer Schweißbrenner / Dr.-Ing. habil. Khaled Alaluss - Dynamischer Partikelbruch: Modelldefinition, Kalibrierung und Anwendung / Dr.-Ing. Luca Benvenuti - Konstruktionsbegleitende Toleranzsimulation mit CETOL 6 σ unter Verwendung der GPS-Strategie DIN EN ISO 14638 und DIN EN ISO 8015 / Dipl.-Ing. (FH) Christoph Bruns - PTC CREO SIMULATE ENGINE UPDATES / Dr. Arun Chavan - CREO SIMULATE : ROADMAP / Jose Coronado - Simulationsbasierte Entwicklung und Optimierung von Werkzeugmaschinen / Dipl.-Ing. Uwe Eiselt - Validierung des Kontaktmoduls der Freeware Z88Aurora anhand analytischer Beispiele und kommerzieller FE-Systeme / Christian Glenk M.Sc. - Mehrkörpersimulation eines ebenen Koppelgetriebes mittels Matlab/ADAMS-Co-Simulation / Dipl.-Ing. Christian Gollee - Numerische Auslegung des Mehrlagenschweißens als additives Fertigungsverfahren / Dr.-Ing. Marcel Graf - Berechnung und Simulation von Kurvenschrittgetrieben / Dr.-Ing. Andreas Heine - Parameterstudien und Co-Simulation ebener Koppelgetriebe / Stefan Heinrich M.Sc. - Erfassung, Simulation und Weiterverarbeitung menschlicher Bewegungen mit DYNAMICUS / Dipl. -Math. Heike Hermsdorf - Linear Dynamic System Analyses with Creo Simulate / Dr.-Ing. Roland Jakel - Strömungssimulation zur Optimierung von Flussfeldern in PEM-Brennstoffzellen / Philipp Jendras M.Sc. - Konvergenz eines plastischen Multiphysics-Kontaktes in der Pressschweißsimulation - Herausforderungen und Lösungsansätze / Jonny Kaars M.Eng. - Kurvenabgleich zur Bestimmung eines Systemverhalten und von Materialparametern / Dipl.-Ing. Rene Kallmeyer - Die kinematische und statische Analyse eines Biglide-Getriebes mit Hilfe der Programme Mathcad und GeoGebra / Dr.-Ing. Hanfried Kerle - Möglichkeiten der TexMind Software für Generierung von textilen Strukturen für FEM Simulationen und CAD Anwendungen / Prof. Dr. Yordan Kyosev - Prozesssimulation einer Rotorflechtmaschine nach „Horn“ zur Ermittlung der Flechtfadenspannung / Robert Laue M.Sc. ; Dr.-Ing. Daniel Denninger - Bruch einer Königswelle einer 6300 t Presse / Prof. Dr-Ing. Uwe Mahn - Strukturzuverlässigkeit durch Frequenzganganalyse mit Finite-Elemente-Methode im Rahmen des Projektes DRESDYN / Dipl.-Ing. M.Eng. Anton Melnikov - Systemübergreifender Simulationsansatz zur Auslegung, Fertigung und Qualitätssicherung am Beispiel einer Bogenverzahnung / Dipl.-Ing. Jürgen Merz - Integrative Prozess- und Bauteilsimulation für kurzfaserverstärkte Spritzgießbauteile / Dr.-Ing. Sascha Müller - Computergestützte Simulationsschnittstelle - Optimierte Systementwicklung / Dipl.-Ing. Sam Nezhat - Formatabhängige hochdynamische Bewegungen mit Servoantrieben / Dipl.-Ing. Dipl.-Inform. Rainer Nolte - Integration der Diskrete Elemente Methode in die domänen-übergreifende Systemsimulation / Dipl.-Ing. Christian Richter - Mehrkörpermodellierung und Validierung einer 3 MW Windturbine / Andreas Schulze M. Sc. - Vergleich von Stützstrukturen für die additive Fertigung: Creo Parametric/Simulate 4.0 & ProTOpCI / Dipl.-Ing. (FH) Urs Simmler - MFBD-Simulation des Nadeleindringens in ein Gewebephantom am Beispiel der Stanzbiopsie / Thorsten Speicher M.Eng. ; Katharina Hauschild M.Sc. - ANSYS AIM: Der Konzeptsimulator für alle / Dipl.-Ing. Marc Vidal - Neue Schweißfunktionalität in Creo 4 mit den daraus entstehenden Vorteilen zur Simulation / Axel Waidmann - Entwicklung eines zwangläufigen Schneid- und Fixiersystems für den Einsatz in einem Tapelegekopf / Dipl.-Ing. Rainer Wallasch<br>The Chair of Assembly and Handling Technology, which belongs to the Faculty of Mechanical Engineering, has organized the annual simulation user meeting SAXSIM since 2009.  Select contributions will be published in conference proceedings.  The 9th SAXSIM user meeting took place at Technische Universität Chemnitz on March 28, 2017.:- Multiphysikalische Systemsimulation mit SimulationX / Adam Burkhard - Modellierung & Simulation des Plasmaschweißens zur Entwicklung innovativer Schweißbrenner / Dr.-Ing. habil. Khaled Alaluss - Dynamischer Partikelbruch: Modelldefinition, Kalibrierung und Anwendung / Dr.-Ing. Luca Benvenuti - Konstruktionsbegleitende Toleranzsimulation mit CETOL 6 σ unter Verwendung der GPS-Strategie DIN EN ISO 14638 und DIN EN ISO 8015 / Dipl.-Ing. (FH) Christoph Bruns - PTC CREO SIMULATE ENGINE UPDATES / Dr. Arun Chavan - CREO SIMULATE : ROADMAP / Jose Coronado - Simulationsbasierte Entwicklung und Optimierung von Werkzeugmaschinen / Dipl.-Ing. Uwe Eiselt - Validierung des Kontaktmoduls der Freeware Z88Aurora anhand analytischer Beispiele und kommerzieller FE-Systeme / Christian Glenk M.Sc. - Mehrkörpersimulation eines ebenen Koppelgetriebes mittels Matlab/ADAMS-Co-Simulation / Dipl.-Ing. Christian Gollee - Numerische Auslegung des Mehrlagenschweißens als additives Fertigungsverfahren / Dr.-Ing. Marcel Graf - Berechnung und Simulation von Kurvenschrittgetrieben / Dr.-Ing. Andreas Heine - Parameterstudien und Co-Simulation ebener Koppelgetriebe / Stefan Heinrich M.Sc. - Erfassung, Simulation und Weiterverarbeitung menschlicher Bewegungen mit DYNAMICUS / Dipl. -Math. Heike Hermsdorf - Linear Dynamic System Analyses with Creo Simulate / Dr.-Ing. Roland Jakel - Strömungssimulation zur Optimierung von Flussfeldern in PEM-Brennstoffzellen / Philipp Jendras M.Sc. - Konvergenz eines plastischen Multiphysics-Kontaktes in der Pressschweißsimulation - Herausforderungen und Lösungsansätze / Jonny Kaars M.Eng. - Kurvenabgleich zur Bestimmung eines Systemverhalten und von Materialparametern / Dipl.-Ing. Rene Kallmeyer - Die kinematische und statische Analyse eines Biglide-Getriebes mit Hilfe der Programme Mathcad und GeoGebra / Dr.-Ing. Hanfried Kerle - Möglichkeiten der TexMind Software für Generierung von textilen Strukturen für FEM Simulationen und CAD Anwendungen / Prof. Dr. Yordan Kyosev - Prozesssimulation einer Rotorflechtmaschine nach „Horn“ zur Ermittlung der Flechtfadenspannung / Robert Laue M.Sc. ; Dr.-Ing. Daniel Denninger - Bruch einer Königswelle einer 6300 t Presse / Prof. Dr-Ing. Uwe Mahn - Strukturzuverlässigkeit durch Frequenzganganalyse mit Finite-Elemente-Methode im Rahmen des Projektes DRESDYN / Dipl.-Ing. M.Eng. Anton Melnikov - Systemübergreifender Simulationsansatz zur Auslegung, Fertigung und Qualitätssicherung am Beispiel einer Bogenverzahnung / Dipl.-Ing. Jürgen Merz - Integrative Prozess- und Bauteilsimulation für kurzfaserverstärkte Spritzgießbauteile / Dr.-Ing. Sascha Müller - Computergestützte Simulationsschnittstelle - Optimierte Systementwicklung / Dipl.-Ing. Sam Nezhat - Formatabhängige hochdynamische Bewegungen mit Servoantrieben / Dipl.-Ing. Dipl.-Inform. Rainer Nolte - Integration der Diskrete Elemente Methode in die domänen-übergreifende Systemsimulation / Dipl.-Ing. Christian Richter - Mehrkörpermodellierung und Validierung einer 3 MW Windturbine / Andreas Schulze M. Sc. - Vergleich von Stützstrukturen für die additive Fertigung: Creo Parametric/Simulate 4.0 & ProTOpCI / Dipl.-Ing. (FH) Urs Simmler - MFBD-Simulation des Nadeleindringens in ein Gewebephantom am Beispiel der Stanzbiopsie / Thorsten Speicher M.Eng. ; Katharina Hauschild M.Sc. - ANSYS AIM: Der Konzeptsimulator für alle / Dipl.-Ing. Marc Vidal - Neue Schweißfunktionalität in Creo 4 mit den daraus entstehenden Vorteilen zur Simulation / Axel Waidmann - Entwicklung eines zwangläufigen Schneid- und Fixiersystems für den Einsatz in einem Tapelegekopf / Dipl.-Ing. Rainer Wallasch

This monograph publishes a description of methods and algorithms for pursuit problems on surfaces. Simulation of tasks in the Mathcad programming environment was made. The development of digital technologies makes it possible to simulate a variety of problems from the theory of differential games. As a result of computer modeling, a lot of animation videos were obtained, which allow you to see the algorithmic solutions proposed by the author in pursuit problems.&#x0D; The monograph can be useful for students of technical universities, graduate students and developers of robotic systems with elements of artificial intelligence.

The textbook presents mathematical research methods and models of economic objects and processes designed for the analysis and prediction of economic factors and develop control solutions as in the deterministic conditions, and in conditions of some uncertainty, and dynamics. Each Chapter of the book consists of a theoretical framework, discussed in detail several examples and tasks for independent work. As workbench simulation uses standard office the program Excel and Mathcad. Tutorial focused on independent performance of students individual tasks on disciplines "Economic-mathematical methods" and "Econometrics".&#x0D; Meets the requirements of Federal state educational standard of higher education of the last generation.&#x0D; The publication is intended for students and postgraduate students in economic disciplines. It can also be useful as they perform final qualifying works. The book will be useful for practitioners engaged in the analysis of the current financial and economic condition and future development of firms and businesses.

The virtual simulation methods used in the gear industry allow for the prediction of requirements in the gears manufacturing process, as well as, prediction of their mesh before they are manufactured. The aim of this paper is to present an approach regarding the virtual simulation of multi-tooth contact analysis of worm-face gear drives used in the automotive industry. The methods presented in this paper are intended to reduce the process development phase of gearboxes, having as components, worm-face gear drives and thus saving large amounts of time and money. A procedure has been developed in order to simulate the idle multi-tooth contact, in a worm-face gear drive with localized contact, as a combinative algorithm of using a virtual manufacturing method and the power of MathCAD software. Virtual simulation of loaded multi-tooth contact analysis has been carried out together with the contact stress analysis by FEA method using ANSYS software. The FEM models have been developed by Computer Manufacturing Simulation (CMS) method. 3D CAD examples illustrating the idle contact pattern on face gear teeth flanks are presented for both directions of rotation of the driving worm. Numerical results related to the loaded multi-tooth contact analysis and contact stress analysis, respectively, are also provided in order to illustrate the developed approach.

The geometry of a crack is a fundamental consideration when calculating leakage rates for Leak-before-Break assessments. Carrying out fluid mechanics calculations does not give any additional benefit if there is not enough information on the crack shape. To address this issue, work is being carried out under the R6 development programme to derive a model that couples fluid mechanics and solid mechanics. The aim is to combine complex crack shapes with relatively simple fluid mechanics models and compare with experimental data. Then, the model can be extended to examine various stress distributions, and give indications as to how conservative are the current models. The model is a development of the one presented in a previous PVP paper (Reference 1), and a special case of isothermal gas flow is considered, where the equations reduce to an Ordinary Differential Equation (ODE). This is solved using a Runge-Kutta integration scheme in MATHCAD. A test case is presented based on the crack geometries considered in experiments, and upon comparison with numerical results; it is clear that choosing the correct crack shape is crucial in obtaining accurate predictions of leak rate. The assumed crack openings are rectangular, diamond or elliptical. In addition to this, weld residual stress profiles are postulated, based on experience of welds in piping components. Comparing the numerical simulations with the simplified DAFTCAT model indicates that the more precise ODE method can reduce conservatism in calculation of leak rates.

In response to climate change, the Kyoto Protocol, and the need to reduce greenhouse gas emissions, researchers are looking to marine geological storage of CO2 as one of the most promising options. Marine geological storage of CO2 involves the capture of CO2 from major point sources (such as a power plant) and the transport of CO2 to storage sites in marine geological structures such as a deep sea saline aquifer. Since 2005, we have developed relevant technologies for marine geological storage of CO2. Those technologies include possible storage site surveys and basic designs for CO2 transport and storage processes. To design a reliable CO2 marine geological storage system, we devised a hypothetical scenario and used a numerical simulation tool to study its detailed processes. The process of transport CO2 from the capture sites to the storage sites can be simulated with a thermodynamic equation of state. We compared and analyzed the relevant equation of state, including the Benedict-Webb-Rubin-Starling (BWRS), Peng-Robinson (PR), Peng-Robinson-Boston-Mathias (PRBM) and Soave-Redlich-Kwong (SRK) equations of state. To evaluate the predictive accuracy of the equation of state, we compare the results of numerical calculations with experimental reference data. In a supercritical state (above 31.1°C and 73.9bar), which corresponds to the thermodynamic conditions of CO2 reservoir sites, the BWRS, PR, and PRBM equations of state showed a good predictive capability. On the other hand, the SRK equation of state showed a high error rate of 300% in the supercritical state. This paper analyzes the major design parameters that are useful for constructing onshore and offshore CO2 transport systems. On the basis of a parametric study of the hypothetical scenario, we suggest relevant variation ranges for the design parameters, particularly the flow rate, diameter, temperature, and pressure. Using the hypothetical scenario, we also studied how the thermodynamic conditions of CO2 affect on the fluid flow behavior and thermal characteristics of a pipeline transport system. In summary, this paper presents our analysis and deductions of the major design parameters that are useful for constructing onshore and offshore CO2 transport systems.

A significant part of a Manufacturing Automation course is devoted to CNC machine tools, their architecture, and the part programming languages (APT, ISO G-code and so on). Nevertheless, it is not trivial to provide the students with a complete understanding of the relationships between the machine dynamics, the path planning strategy, and the control systems. For this reason, a short laboratory course has been developed aimed at the programming of a simplified CNC software with the following functionalities: to parse a part program written in a subset of the ISO G-code; to process the instruction blocks and to generate trapezoidal velocity profiles; to convert the velocity profiles reference trajectory; to interpolate the reference trajectory at the servo loop control frequency. In order to shorten the development time, the following choices have been made. The parser only implements a small subset of the ISO G-code, which is point-to-point positioning (G00), linear interpolation (G01) and full stop (M30). The velocity profiles are calculated as acceleration-limited trapezoidal profiles with zero-feed velocity boundary conditions. Finally, the system is developed in Ruby, which is an object-oriented scripting language, easy to learn and well suited for rapid prototyping of complex software systems. This is why the project has been named RNC (Ruby Numerical Control). At the course start, the overall system architecture is explained and is translated in the set of Ruby classes that have to be developed, and classes interfaces are mandatorily determined. During the laboratory activity, students work in teams, and each team is encouraged to work separately on the development of each Ruby class. At the end of the development phase, the students can interface the RNC they wrote with a machine tool simulator (developed separately) and use the whole software system to test the accuracy of the tool-tip trajectories as a function of the system parameters (servo loop gains, motors torque, masses and dynamic performance of the virtual machine tool). Moreover, thanks to the object-based architecture of RNC and to the common, pre-determined class interfaces, the students can then swap and mix different implementations of the above reported functionalities, as well as enhanced versions provided by the teacher. With respect to other similar Mathlab/Simulink based solutions, the presented laboratory activity brings a more detailed insight into a CNC software still limiting the code complexity thanks to the Ruby language and it is only based on open-source tools.