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NUM has launched a powerful form compensation option for its renowned NUMROTO tool grinding software. The new option enables tool manufacturers to ‘close the loop’ between CNC tool grinding and measurement, in order to further increase process accuracy and consistency. The system inherently compensates for process variables such as temperature fluctuations and grinding wheel wear, and is likely to prove especially popular with manufacturers of the latest specialist precision tools, which demand unprecedentedly tight production standards.

Operators seeking to maximise the accuracy of tools produced on CNC grinding machines generally use a coordinate measuring machine (CMM) to obtain probed measurements of the machined part, using this information to influence the production process during subsequent machining operations. Until now, NUMROTO users processed the results from the CMM with proprietary third party compensation software running on an external computer, before feeding a suitably corrected target profile back into the CNC machine.

2020 03 11 112526

Developed in conjunction with several key NUMROTO end users, NUM’s new form compensation facility forms a fully integrated part of the company’s form cutter package and completely dispenses with the need for any third-party software. The data exchange between the CMM and the CNC machine can be handled by XML interface or by export/import of the DXF file via a local area network.

The form compensation software employs advanced filtering algorithms to create a very smooth and precise compensation profile. The software always calculates the orientation of the grinding wheel and the path speed from the original profile, so that only the position of the contact point on the cutting edge is compensated – and not the orientation of the grinding wheel. This ensures that the surface quality of the tool is unaffected by the compensation.

2020 03 11 112549

NUM’s new form compensation option is compatible with NUMROTO version 4.1.2 or later.

First launched in 1987, NUMROTO software has become the preferred choice for many of the world’s leading manufacturers of CNC machines for the production and re-sharpening of tools such as end-mills, drills, step drills, form cutters and many others. It is currently used on more than 6,000 machines worldwide.

Compared to most competitive products on the market, the software provides a much more direct and efficient path between tool design, manufacture and verification.

For further information, please contact:

Steve Moore, NUM (UK) Ltd, Unit 5 Fairfield Court, Seven Stars Industrial Estate, Wheler Road, Coventry CV3 4LJ, UK.

Tel: +44 (0)871 750 4020; This email address is being protected from spambots. You need JavaScript enabled to view it.;

NUM AG, Battenhusstrasse 16, CH-9053 Teufen, Switzerland.

Tel: +41 71 335 04 11; This email address is being protected from spambots. You need JavaScript enabled to view it.;

Published in Processing
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NUM has launched a powerful new software framework tool that enables users of CNC machine tools to generate and test ISO part programs offline. The tool looks set to win across-the-board approval in busy machine shops, where an uninterrupted workflow can provide a key productivity advantage.

  • Allows creation and testing of part programs without needing access to target CNC machine
  • Helps maximise shop floor productivity by allowing uninterrupted machining operations

NUM’s new Flexium Office framework software runs under Windows 7/8 or 10 on any standard PC. It allows any of NUM’s technology HMIs (Human-Machine Interfaces) to be used for specific projects – without requiring access to the target CNC machine tool. The corresponding ISO part program can be created offline, and can also then be tested offline using NUM’s Flexium 3D simulation software, before being transferred to the target machine.

NUM’s application-specific technology HMIs form part of the company’s Flexium CAM (Computer-Aided Manufacturing) software suite. The HMIs cover every type of CNC machining operation, including hobbing, shaping, milling, threaded wheel grinding and cylindrical grinding.

2019 10 24 094948(click to enlarge)

After selecting the most appropriate technology HMI for the task, the user simply carries out basic data definition tasks for the project in hand, using the highly intuitive tools and workflow commands provided by Flexium Office. Multiple projects can be started and saved at any time – allowing collaborative team development if desired – and the framework software provides support for 14 languages. As soon as the user is satisfied with the process and workflow of a project it can be used to generate the corresponding CNC part program – entirely automatically.

The CNC program can either be transferred directly to a nominated machine in the production plant, usually via a TCP/IP network, or input to NUM’s Flexium 3D simulation software for thorough evaluation before being issued for production purposes. The key advantage of simulation is that it enables users to optimise any ISO-code part program offline, further helping to maximise productivity by leaving the CNC machine tool free for manufacturing purposes.

NUM’s simulation software is extremely powerful. It provides full visualisation of the tool centre point path and workpiece material removal, backed by automatic checking for collisions between machine components, the tool and the workpiece. The software creates a dynamic colour image, showing the workpiece as a 3D volume than can be rotated and viewed from any perspective.

Flexium Office framework software runs on any standard PC and has no special graphics handling requirements. It needs approximately 30 MB of free space on the PC’s hard disk or SSD, and a minimum of 4 GB of RAM due to the Flexium 3D simulation software. For maximum performance, an i3 or i5 dual core processor configuration is recommended.

Published in Production
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Innovative new application software from NUM enables users of high throughput, multi-process CNC machine tools to implement process monitoring without incurring any additional hardware costs.

*  Uses CNC system’s built-in data collection and measurement capabilities – no additional hardware needed

The software is likely to be of especial interest to users of high-end production systems such as transfer machines, where even relatively small operating issues can rapidly escalate into much larger, more expensive problems unless proactive remedial action is taken.


Through real-time monitoring of the power/current values of the electric motors on a transfer machine throughout its milling, turning or grinding processes, it is possible to minimise system downtime and maintain production quality by guarding against faults. Typically, these would include worn or damaged tools and undersize or oversize workpiece blanks.

Known as NUMmonitor, the software initially operates in ‘learn’ mode to acquire the varying loads and drive currents of motors when the CNC machine tool is running at optimal performance levels and with a sharp new tool. Up to 8 motors can be monitored simultaneously throughout the machine’s operating cycle, and the software accommodates up to 11 different error detection criteria per motor. In the case of multi-NCK systems, a further 8 motors can be monitored for each additional NCK.

On transfer machines, it is generally sufficient to monitor just the load (power) of the spindle motors.

Both the level and duration of each load event that occurs during the ‘learn’ cycle are measured and recorded, and the process can be repeated to obtain average values. There is no limit to the number of different load events that can be accommodated during a complete machine cycle. Minimum and maximum curves are automatically generated from the ‘learn’ cycles, with the user able to define the types of error detection and the logic (for combining different error criteria, if desired).

These machine cycle-time related operating parameters form ‘known good’ event references which can then be used for comparison purposes against data sampled during subsequent production runs. The user-programmed amplitude, duration and integral thresholds determine whether an event constitutes an ‘alert’, ‘alarm’ or ‘shutdown’ condition.

One of the key design aims behind NUM’s new process monitoring software was that it should be entirely self-contained, so that machine designers and users can implement relatively sophisticated process monitoring schemes without incurring additional hardware costs.

NUMmonitor capitalises on the inherent flexibility of NUM’s latest-generation Flexium+ CNC platform. As standard, every Flexium+ CNC system includes a PC which can handle data from the servo drives’ measurement points, a PLC that has direct access to machine parameters, and an NCK oscilloscope feature capable of reading values in real-time. All system communications are handled by FXServer, using fast real-time Ethernet (RTE) networking.

Production can commence as soon as NUMmonitor has acquired the machine’s ‘known good’ performance parameters. The same part program is used for both the ‘learning’ phase and the production phase. All active values are stored in the CNC system’s solid state PC memory to facilitate fast access, while a second parameter in the part program defines precisely when each comparison should start. If a discrepancy on any of the monitored motors is detected then a signal is sent to the PLC, which decides what action should be taken: from a simple warning message to an emergency disengagement.

The new NUMmonitor software option can be installed and used on any Flexium+ CNC system running NUM’s Flexium software version or higher.

NUM also intends producing a lower cost version of NUMmonitor software, limited to two traces, for use on less complex CNC machine tools.

Published in Production Equipment
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In collaboration with NUM Taiwan, the Taiwanese laser machine manufacturer Legend Laser, Inc., has developed a unique multi-axis system for the precision cutting of thin sheet metal parts. Based on NUM’s latest-generation Flexium+ CNC platform, the system combines high dynamic performance linear motors with a pulsed fibre laser, and is expressly designed for 24/7 operation in a standard production environment.

Founded in 1995, Legend Laser specialises in the design and manufacture of a diverse range of laser marking, micro-machining and micro-tube processing systems. Initially concentrating on the domestic and Chinese markets, the company nowadays serves a worldwide customer base. Its headquarters are located in Xinzhuang District, New Taipei City, in northern Taiwan.

Legend Laser’s new SRC-610 precision sheet metal laser cutting system is based entirely on NUM’s Flexium+ CNC platform.Legend Laser’s new SRC-610 precision sheet metal laser cutting system is based entirely on NUM’s Flexium+ CNC platform.

Legend Laser’s new SRC-610 precision sheet metal cutter is a 3-axis system with a working area of 1000 x 600 mm and an above-worktable clearance height of 150 mm. It is mounted on a high inertia platform, comprising a large mass solid granite base with a rigid metal frame. To ensure smooth, burr-free cutting and to prevent any heat-induced deformation of thin metal workpieces, the power output of the pulsed fibre laser is fully synchronised to the cutting operation. The laser has a peak output power of 1.5 kW and can cut sheet metal with a thickness of between 20 µm (0.02 mm) and 1000 µm (1 mm), at speeds ranging from a few millimetres per second to a hundred millimetres per second.

In addition to sheet metal, the SRC-610 is also suitable for cutting and drilling ceramic and sapphire plate. Thanks to the system’s high dynamic performance and continuously variable laser power level, it is capable of exceptional cutting precision – to within just plus/minus 10 microns (10 µm or 0.01 mm).

The X and Y axes of the system – which control the lateral movement of the sheet metal workpiece and the laser cutting head respectively – are capable of very fast acceleration/deceleration and ultra-precise positioning. Both axes employ linear induction motors, driven by NUM’s NUMDrive X servo amplifiers.

The gap between the laser cutting head and the workpiece is controlled very accurately, using a unique ‘Dynamic Operator’ function in NUM’s Flexium software.The gap between the laser cutting head and the workpiece is controlled very accurately, using a unique ‘Dynamic Operator’ function in NUM’s Flexium software.

The Z axis, which controls the vertical height of the laser cutting head and thus the gap between it and the workpiece, uses a NUM BHX series AC brushless servomotor and a third NUMDrive X servo amplifier. The gap is controlled very accurately during the entire cutting process, through use of a unique ‘Dynamic Operator’ (DO) function in NUM’s Flexium software. This employs special fast calculation and communication facilities which enable event-driven machine cycles to be integrated into the real-time CNC kernel.

According to Sherman Kuo, President of Legend Laser, “NUM is now our CNC provider of choice. Its open architecture CNC platforms simplify system integration, while its willingness to actively collaborate in joint machine development projects such as this helps to shorten our time to market significantly”.

Locally placed technical support is also an important factor, as Adrian Kiener, CSO Asia and Managing Director of NUM Taiwan, points out: “Legend Laser’s HQ is only about 150 km from NUM’s offices in Taichung City. By offering direct access to the CNC experts and development facilities we have here, as well as in Switzerland and other strategic locations around the world, we can provide a very fast and supportive service to companies in Taiwan and other countries in Asia”.

NUM is supplying Legend Laser with a complete CNC solution for its SRC-610 precision sheet metal laser cutting system. In addition to the Flexium+ 8 CNC system and NUMDrive X servo amplifiers, this includes a custom HMI (human-machine interface) that is dedicated to laser cutting, a PLC, a fully developed part program and system commissioning.

Published in Sheet Metal
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NUM is helping the Taiwanese machine tool company Chien Wei Precise Technology to develop innovative CNC grinding machines for manufacturing specialist gears used in robotics applications.

Based entirely on NUM’s latest-generation Flexium+ 68 CNC platform, Chien Wei’s new machines are designed to speed the production of both involute and cycloidal profile precision gears. They are believed to be the first gear grinding machines on the market that are capable of handling both types of gear profile. There are two versions of the grinding machine, one for internal gears, the other for external gears.

Founded in 1981, Chien Wei Precise Technology Co., Ltd is based in Fengshan District in southern Kaohsiung, Taiwan. The company initially specialised in precision machine tools such as vertical grinders, jig grinders and machining centres, together with co-ordinate measuring machines (CMMs). Over time, it also diversified into robotic automation systems.

Reduction gearboxes for robotic applicationsReduction gearboxes for robotic applications

Robotic systems typically use either planetary gearboxes equipped with involute gears, or cycloid drives based on a combination of a reduced epitrochoid rotor and a cycloid stator. While planetary gearboxes have been around for a long time and enjoy extensive use, cycloid drives have far fewer moving parts and offer a more efficient means of achieving extremely high reduction rates. A speed reducer with a ratio of 200:1 would typically need a chain of three planetary gear boxes with twelve moving involute gears. The same reduction ratio could be achieved with a cycloid drive using one stator and one rotor. However, cycloid gears are notoriously difficult and expensive to manufacture.

In 2015, Chien Wei decided to bring gear manufacturing in-house, by developing its own gear grinding machine. By producing its own gearboxes the company could control quality, shorten lead times and reduce costs. It would also enable it to sell gearboxes to machine builders – and possibly the machines themselves to gear manufacturers.

Chien Wei initially based its gear grinding machine on a Fanuc series 0i-MF CNC system, which it uses for other machine tools, together with Mastercam CAD/CAM software and its own CMM. But it soon became apparent that the profile complexity of cycloidal gears meant that CMM data was inadequate for controlling the manufacturing process. Another major disadvantage was that customers wishing to purchase the machines would also need to invest in an expensive CAD/CAM system and extra personnel.

According to Chien Wei’s President, Mr Lee, “We quickly decided that what we needed was a CNC system that fully supported gear grinding from the outset, so that our customers could simply input the parameters of the gear they wanted, with the CNC then controlling all aspects of the machine’s dressing and grinding processes in real-time. NUM was an obvious choice, because of its proven expertise in CNC gear grinding applications. The company was also willing to collaborate in the joint development of the CNC system, which includes an application-specific HMI (human-machine interface) and various dedicated control functions.”

Typical cycloid gearboxTypical cycloid gearbox

The new generation of Chien Wei’s gear grinders together with NUM’s new profile grinding technology now provides the ability and flexibility to manufacture both cycloid and involute gears on the same machine.

Adrian Kiener, CSO Asia and Managing Director of NUM Taiwan, points out that this application highlights the importance of NUM’s decentralised support strategy. “By providing direct access to the CNC experts and extensive development facilities we have here in Taiwan, as well as those in many other countries around the world, we are able to provide our customers with a very fast response service that helps them shorten their time-to-market significantly. In combination with the knowledge and experience of our gear product group in Switzerland, this led to the complete package that NUM is providing. It includes the user interface, technology and calculations, as well as all the NC cycles.”

Chien Wei’s internal gear grinder is a 9-axis machine. The work piece table is mounted on a linear axis that moves axially towards the grinding wheel, which is belt-driven (due to space constraints inside the gear) and mounted on a vertical axis driven by a linear motor. As the grinding wheel spins, it is driven up and down by the linear axis, while the work piece table moves in continuously. Both flanks of the gear are ground simultaneously. The machine also handles gear dressing. During the dressing cycle, the entire tool head is moved horizontally to the right, and a symmetrical dressing disk moves along the outer shape of the grinding wheel in three sections, right/left flank and tip. Cycloids as well as involute shapes can be dressed.

The external gear grinder is an 8-axis machine. Broadly similar to the internal gear grinder in operational terms, it features a direct drive grinding wheel. Again, like the internal gear grinder, it also handles dressing. However, in this case the shape of the tooth gap can be reduced epitrochoids or involutes.

Manual correction of the gear tooth shapes is possible on either machine.

Both machines are controlled by NUM Flexium+ 68 CNC systems, equipped with NUM FS153i touch-sensitive operating panels. The application-specific HMI that has been jointly developed by NUM Taiwan and Chien Wei controls both the grinding and dressing cycles, and allows users to fully specify the required gear profile simply by entering the appropriate parameters. Graphical DXF (Drawing Interchange Format) files can be imported from – and exported to – CAD systems, and the system features a comprehensive database for grinding wheels and work pieces. The NC programs are generated entirely automatically, without any need for operator involvement.

As Johnny Wu, Sales Manager for NUM Taiwan, points out, “NUM’s open architecture CNC platforms, combined with the company’s willingness to partner with machine builders in developing application-specific solutions, is a key differentiator when it comes to choosing a CNC supplier.”


Published in Production Equipment
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CNC specialist NUM has helped the Chinese machine building company Original Point Machine Tools (OPMT) to develop an advanced 8-axis CNC machining centre capable of processing many different types of materials, including metal, ceramics, glass and cemented carbide.

The ML125 machining centre has a dual laser head capable of both high speed and high quality cutting.The ML125 machining centre has a dual laser head capable of both high speed and high quality cutting.OPMT is a relatively small but fast-growing company based in Fo’shan – of Guangdong Province – in south China. It is rapidly acquiring a reputation for innovative complex engineering: after developing a highly successful 4-axis milling centre for an automotive production line, it then created a compact 5-axis milling station for the dental industry.

For its latest project, OPMT was asked by Guangdong University of Technology to develop a machining centre that combined high speed laser cutting and milling capabilities. This key provincial university is located in Guangzhou, Guangdong Province, China, and provides a wide range of courses, with a major emphasis on engineering. OPMT chose to partner with NUM for its CNC expertise and with the Xi'an Zhongke Microcrystalline Manufacturing Company and the Chinese Academy of Sciences to help with some of the complex materials processing issues.

The result is the ML125 8-axis multi-function machining centre. The machine has a dual laser head that is capable of switching between a 20 watt picosecond laser for very high speed cutting and an ultrafast 10 watt femtosecond laser for improved process quality. The femtosecond laser is capable of drilling and cutting almost any type of material, and its very short 1030 nm wavelength means that it is suitable for micro/nano processing applications.

Entirely controlled by NUM’s latest-generation Flexium+ 68 CNC platform, the ML125 machining centre has eight servo axes, two independent NC channels and fast application-specific I/Os embedded in the NCK hardware. Movement of the fully articulated laser head is controlled by five NUMDrive X servo drives, with high speed interpolation between all five axes – and the CNC system provides a full RTCP function.

By employing a special hollow shaft torque motor and a linear motor drive, the dual laser head has an exceptionally high positional accuracy of 8 micrometres (0.008 mm), with a repeatability of just 5 micrometres. The associated A/C axis rotation platform has a precision rotary feed function with a positional accuracy of 5 arc minutes. The milling head uses a 40,000 rpm spindle motor, and laser cutting and milling can be performed with just one clamping operation, which further improves process accuracy.

According to Bruce Zheng, CEO of OPMT, “The requirements of the industrial processing market keep changing, which means that our machines need to be extremely flexible so that they always offer customers what they need. Partnering with NUM helps us to achieve this; its open architecture CNC systems are easy to integrate with third-party products such as motors, and the company is prepared to offer the long term commitment and technical support that is necessary for successful completion of complex machine projects.”

The ML125 machining centre is now installed in a research laboratory at Guangdong University of Technology.

Published in Sheet Metal
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Innovative new software from NUM enables CNC machine tool builders and retrofitters to provide their customers with exceptionally easy-to-use machine setup and real-time control facilities for precision grinding applications.

Forming the latest application-specific addition to NUM’s FXCAM suite of CNC software, the new NUMgrind package simplifies machine tool programming for an extensive range of tasks, including external and internal cylindrical grinding, surface grinding, wheel shaping and dressing.

2017 09 19 090717NUMgrind simplifies machine tool programming for an extensive range of tasks, including external and internal cylindrical grinding, surface grinding, wheel shaping and dressing.

NUMgrind is specifically designed to simplify the creation of G code programs for CNC machine tools through the use of a highly intuitive graphical human machine interface (HMI), conversational-style ‘fill in the blanks’ type dialogues or a combination of the two. Unlike conventional CAD/CAM workstation tools for generating CNC machine tool control programs, NUMgrind is intended for use in the production environment. It enables shop floor personnel to handle everyday machining tasks such as grinding very quickly and efficiently – and the work can be easily shared amongst several people and several machines.

NUMgrind works in conjunction with embedded CNC grinding and dressing cycles and direct hyperlinks to several production files such as wheel/part data sheets, CAD files and/or other pertinent grinding production data to facilitate efficient manufacturing of a diverse range of workpieces, covering various different wheel forms and part types. It can be configured for a wide variety of machine configurations such as OD/ID Grinders, Surface Grinders, Centreless Grinders, etc.

The cylindrical grinding package includes OD/ID grind cycles for 2-Axis (X/Z) horizontal or vertical grinding machines and also offers an inclined axis capability. The dressing station can be table-mounted or rear-positioned to accommodate a wide range of machines. Standard forms or profiled wheels can be dressed with single point, double point or roller dresser. For surface grinding, NUM offers full grinding cycles for 3-Axis (X/Y/Z) machine configurations with built-in wheel dressing capabilities similar to that of the OD/ID cylindrical grinding package.

2017 09 19 090747NUMgrind includes a wide range of embedded grinding cycles.

Machine production time is very efficient due to HMI pages that guide the machine operator through a step-by-step process in setting up the machine for each part. Standard dresser setup and part setup cycles prompt the user to jog the axes to specific locations on the machine in order to teach the dresser and part zero program positions. These cycles enable the user to quickly and easily calibrate their machine for a wide variety of parts and wheels.

As soon as the data entry session is complete, the program is generated automatically, stored, and made ready for execution. The result is a modular, easily modifiable program that will produce the desired grind process.

In conjunction with NUMgrind, Flexium 3D (NUM’s graphical simulation software) provides the operator with another very useful tool to further enhance productivity. Once a part program is generated through FXCAM NUMgrind, the operator can simulate the grinding cycle through Flexium 3D. The software can be configured in a variety of different ways to match many standard cylindrical and surface grinding machines. It can be used directly at the machine or as a standalone program for grinding process verification. This software gives the operator more power to ensure that the generated programs match their desired outcome before grinding occurs on the machine.

NUM’s entire FXCAM suite of CNC software, including the new NUMgrind package, is designed for use with the company’s latest-generation Flexium+ CNC platform. This platform comprises a fully modular and scalable CNC solution for a wide variety of precision machine tool control applications, and includes a Safe PLC option and comprehensive safe motion control facilities.

According to Steven Schilling, General Manager of NUM Corporation in Naperville, Illinois, “The concept behind FXCAM software is to provide a straightforward, easy-to-learn programming method. Our new NUMgrind package includes cycles for a wide variety of cylindrical and surface grinding operations. The OEM or retrofitter receives a control system with a complete, world-class grinding solution built-in, which eliminates the need for any additional software that can take years to develop”.

Published in Ferrous Tube / Pipe
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NUM will be presenting new developments in CNC hardware and software technology at the FMB. NUM is a globally active company that covers the complete spectrum of mechanical engineering in the field of CNC, from automation to programming and electronics.

num logoNUM will be presenting a host of latest generation CNC products at the FMB. This includes new models within the well-known NUMgear portfolio of CNC gearwheel production solutions, like a highly flexible electronic gear function which provides exceptional accuracy even at high cutting speeds, a new conversational user interface for circular and surface grinding – with 3D simulation – and the most recent version of the MTConnect corporate interface which simplifies the integration of CNC machine tools and production software from third-party providers.

Here the new NUMmill control solution will be exhibited for the first time, which should be particularly interesting to manufacturers of CNC milling machines and retrofitters of control units. It is available as a completely scalable control system and is suitable for a wide range of precision milling applications in markets that are as diverse as machining, wood processing, plastics and high-precision processing.

NUMmill represents a comprehensive, ready-to-use solution and offers an extensive package of preset cycles ranging from simple concentric drilling operations to drilling and thread-cutting, pocket cycles and complex copy milling cycles. And all that comes with 3D simulation for pre-process verification.

Published in Production Equipment
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NUM has launched an advanced control solution for CNC milling machines that features a highly intuitive conversational style user interface. Known as NUMmill, the CNC hardware and software provides a fully scalable control system and is supplied as a complete ‘off-the-shelf’ package.

  • provides simple conversational style user interface for CNC milling machines
  • fully scalable control system suits wide range of precision milling applications

NUMmill is designed specifically for CNC milling machine manufacturers and control retrofitters. It offers an extensive suite of canned cycles, ranging from simple centre drilling, boring and threading to pocket cycles and complex profile milling cycles. All with 3D simulation for pre-process verification. The package is suitable for a wide range of precision milling applications in markets as diverse as metal cutting, woodworking, plastic, and high precision machining.

Based on NUM’s market-leading Flexium+ modular CNC platform, NUMmill is typically configured with 3 or 4 linear axes and a single rotary axis, though it easily scales to suit any size and type of milling machine application. All motorised axes are equipped with high performance brushless servo motors, controlled by NUM’s latest-generation NUMDrive X digital servo drives. The NUMmill software features an exceptionally easy to understand graphical user interface which employs an interactive, conversational style dialogue to radically simplify machine operation. In fact, it is so simple to use that end-users can operate machines without any prior knowledge of ISO code programming techniques.

2016-10-10 212432

NUMmill Windows-based software provides graphical shop floor programming screens that depict the tool, the workpiece and all associated setup data in a concise and unambiguous manner. The operator is prompted to fill in the appropriate data fields presented by the human-machine interface (HMI), after which the machine control program is generated entirely automatically and then stored, ready for execution. On-line help files and step-by-step video tutorials are included for ease of operation. This conversational style programming helps to save considerable development time, as well as significantly reducing the learning curve for new operators.

NUMmill is supplied as a complete, ready-to-run package that includes the Flexium+ CNC system, software, and a 19-inch touch-sensitive machine control panel, together with all necessary drives and motors. The system is also equipped with NUM’s MTConnect interface, which simplifies the integration of CNC machine tools with third party manufacturing software.

In addition to a large number of canned cycles, the NUMmill software provides functions for material removal of basic pockets; these can be defined as circular, oblong, reticular and square. The hole pattern definitions can use a wide variety of geometries, including Arc, Cover Patter, Drilling with Rotary Axis, Grid, Pitch Circle, Row, and Single Points. Milling operations can be performed on circular, oblong, rectangular and square pockets. The drilling cycles that can be performed on hole patterns include Centre Drill or Chamfer, Peck, Chip, Counter Bore, Tap, Ream-Feed Out, Bore-Dwell/Feed Out, Bore-Stop/Rapid Out, Thread Chase, and Taper Threading.

The NUMmill system also provides measurement and probing cycles, to help users meet precision and quality targets, as well as full 3D simulation with collision monitoring for pre-process verification.

The Flexium+ architecture also offers machine designers, builders and retrofitters an easy means of implementing functional safety. Available as a build-to-order option for all Flexium+ CNC systems, NUMSafe includes a safety PLC, safety input and output (I/O) modules, digital servo drives with built-in safe motion monitoring facilities, and compatible brushless servo motors. NUMSafe is a system-wide architecture that puts functional safety features precisely where they are needed, thereby reducing the number of components and wiring, which simplifies design and most importantly saves time in implementing ‘safe motion’ functions.

Published in Ferrous Tube / Pipe
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