As a global specialist in fluid engineering technology such as pumping, agitation, mixing, separation and application technologies, Sulzer has a network of 180 manufacturing facilities and service centres across the globe. With more than 25 service and manufacturing facilities in the UK; a reliable and reputable supply chain is critical for this OEM and service provider, which is why Sulzer recently committed to a three-year contract with metalworking and MRO experts MSC Industrial Supply Co.

Driven by quality, innovation and continuous improvement, Sulzer witnessed indifferent levels of support from its previous integrator of consumable products and made the bold move to change its supplier during the pandemic. It was only a matter of weeks from signing the contract before MSC was identifying savings worth hundreds of thousands of pounds at Sulzer.

Notably, MSC identified the savings ‘virtually’, during the UK lockdown.

The initial phase of the contract is seeing MSC implement vending solutions into two of Sulzer’s largest UK manufacturing sites in Birmingham and Leeds, with bespoke solutions introduced gradually at Sulzer’s other UK sites.

MSC application engineer Stuart Wiezniak was tasked with identifying ‘cost-down’ improvements to meet and exceed MSC’s contractually agreed commitments. Using its manufacturing expertise, a choice of unbiased suppliers, hundreds of best practice reference points and the combined experience of 15-strong application engineering team, MSC identified productivity gains and cost-down savings that would shatter the contractually obliged target on just two machine tools at the Sulzer manufacturing site in Leeds.

During his initial and socially distanced site ‘walk-round’, Wiezniak was introduced to the machine shop and staff, where early conversations identified concerns over a new project that involved turning a 4 m long Inconel shaft for a new high-pressure pump product line used in heavy-engineering sectors such as offshore.

Currently turning hundreds of 3 to 4 m long Super Duplex shafts, the introduction of Inconel for a new product line raised concerns for Sulzer. However, with hundreds of shafts turned annually on lathes over 20 years old, Wiezniak had no concerns over the performance of the machines.

“The older machines have construction and rigidity that far outweighs most modern machine tools, so we had the perfect foundation for trialling MSC’s range of tools,” he says. “We selected a couple of premium carbide grades for Inconel machining, achieving marginal gains on the speeds, feeds and overall cycle times. To attain the ‘step change’ we really wanted, we had to look at ceramic tooling.”

With the extensive range of Japanese ceramic cutting tools from specialist NTK recently added to the MSC range, Sulzer adopted a paradigm shift in strategy. For Sulzer, the concern around switching to ceramic tooling was the potential for additional heat and distortion. Wiezniak thus identified the need to change the machine coolant, as well as the slide wipers on the lathe bed from nylon to steel to protect the machine bed from the increased swarf temperatures created by high-speed and feed turning.

“With the machine fully prepared for trials, we worked closely with NTK’s application engineer Glyn Shaw and Sulzer’s machine operator and programmer Jamie Fieldhouse; a genuine team effort.”

Despite the stable machine platform, the new coolant and the slide guarding, the trio of engineers realised that the steady rest on one lathe required relocation from an average distance of 1 m from the cutting tool, to 350 mm, to increase the rigidity and stability for ceramic tooling. Ceramic tooling is inherently more brittle and susceptible to vibration than its carbide counterparts.

An initial batch of five Inconel 625 shafts required machining from a raw 200 mm diameter by 4 m long billet, down to a range of stepped diameters from 100 to 180 mm. After the primary work of preparing the machine and devising the rough machining strategies, the trials began. When rough machining the shafts to just leave +2 mm for semi-finish turning, the best carbide turning results typically yielded a finish machining time of 14 hours and 1 minute. Cutting data included depths of cut from 1 to 3 mm, cutting speeds of 40 to 50 m/min and spindle speeds of 80 to 200 rpm. These times, like all other times recorded by MSC at Sulzer account for cutting time only and do not include the additional reductions in set-ups and tool changes.

Wiezniak says: “Upon the recommendation of Glyn, we selected NTK’s Bidemic series of inserts and, in particular, the JX1 grade with a round RNMG12 insert geometry. This was because the Bidemic range offers better wear and notching resistance compared to whisker ceramic grades that are used widely in the industry.

“The NTK trials started at a cutting speed of 250 m/min, but we found the optimal speed for this job at 370 m/min, a massive increase over the 40 to 50 m/min we could achieve with carbide,” he continues. “We also increased the spindle speed from 80 to 200 rpm to over 740 to 1000 rpm, depending upon the diameter being turned.

“Cutting with an average depth of 1.5 to 2 mm, we reduced the rough machining time on the five Inconel 625 shafts from 14 hours, to just 2 hours and 4 minutes per shaft. This yielded a material removal rate (MMR) of 222 cm³/min, up from the previous rate of 30 cm³/min. An unexpected benefit was the improved concentricity after releasing the steady rest. With carbide tools, the rollers were showing a run-out of up to ±1 mm, yet with the ceramic inserts, which only increased workpiece temperature by 9°C during machining, the runout was consistently between ±0.15 to 0.20 mm.”

Aside from a nominal annual tooling cost increase of less than £1000, the six-figure financial savings justify the tool cost increase.

“From discussions with Sulzer, they have already identified more than 170 forward orders for the next 12 months for this particular pump,” says Wiezniak. “Based on our CAM and cutting-tool data, we project that we will reduce annual machining costs by 85%, reduce machining times by 85% and reduce the cost per part by 8%. To qualify this, total cutting hours will fall from 2380 per annum to less than 350, and this doesn’t include set-up and tool change reductions. This will yield a significant six-figure financial saving for Sulzer on the production of forward order Inconel 625 shafts and the respective pumps.”

With the groundwork and trials already successfully implemented on the Inconel parts, the cutting data has also been adapted for Sulzer’s large-bed turning centre that presently has more than 100 Super Duplex shafts scheduled for production.

“Although Super Duplex has a somewhat different and softer composition than Inconel, it is still an extremely difficult material to machine,” says Wiezniak. “We have already started work on this and are fully confident that we’ll replicate the ‘seven times’ overall cycle time reduction from the Inconel parts, doubling our already fantastic results.”

Indeed, MSC has already identified further and potentially equally impressive savings on the same shafts on a third machine. With the rough-turned shafts finished to +0.3 to +0.5 mm, the final process of grinding takes place on an 8-tonne Churchill BX cylindrical grinding centre.

Explains Wiezniak: “While we are optimising the turning process to minimise stock for finish grinding, we have identified potentially huge savings when grinding the Inconel shafts. By introducing new grinding wheel technology with the help of Kim Dean from Tyrolit, we can double the depth of cut from the existing 0.05 mm, to 0.1 mm, effectively halving the 36-hour cycle time. But taking this even further, we’ve also identified cycle-time savings from slashing non-grinding times with the introduction of a secondary wheel dressing unit to reduce wheel traversing distances and dressing times.”

For further information
www.mscdirect.co.uk

Rapid Design Manufacturing Solutions (RDMS), a manufacturer of plastic injection production and rapid mould tools, has invested in a second pair of high-precision, three-axis vertical machining centres from Roeders. Sole UK agent Hurco Europe supplied the machines to the toolmaker’s Oldham factory in autumn 2020.

Established in 1998 and run by co-owners Neil Richardson and Paul Ryan, RDMS works closely with its customers to provide high-end, multi-cavity tools. The tools, weighing up to 2 tonnes, are supplied in short lead-times and at competitive prices. Some of the more challenging applications involve in-mould labelling and multi-shot tool production.

Medical work features significantly, including providing assistance to suppliers of hospital and laboratory equipment in the current pandemic. In addition, the firm manufactures injection moulds for producing interior trim that ends up in, for example, Mercedes, BMW, Audi, Porsche, JLR and Nissan cars. The white goods and electronics sectors are also regular recipients of the company’s tools.

A particular specialism at Oldham is the machining of two-shot tooling, used to produce complex parts from two different materials, without the need for assembly, by over-moulding plastic around a preformed plastic or metal insert, often in high volumes. Extreme accuracy and repeatability of machining is required when producing this type of tool, and is the reason that RDMS selected Roeders machining centres right from the start.

Says Ryan: “We need to hold tolerances of less than 10 µm on nearly every tool we produce and these German high-speed machines have always allowed us to do that. Soon after we started out over 20 years ago, we bought a 42,000 rpm Roeders 600p VMC networked to a Mitutoyo CMM and linked to an Erowa cell housing 360 mm square pallets [16 in total].

“A manual handling device speeded transfer of zero-point pallets within the cell, often 24/7, resulting in a high level of productivity as we were able to pre-set the pallets offline and load them accurately on to the machine table,” he continues. “It also increased machining precision, as we could adjust the offsets in the control according to the CMM measurements on the last part.”

To increase capacity both in terms of throughput and workpiece size, a couple of years later the toolmaker purchased a larger, stand-alone Roeders RP800 with 800 x 600 x 400 mm working volume, 30,000 rpm high-torque spindle and up to 60 m/min feed rates.

Even today, a polisher only needs to go over the machining marks on a mould produced on either machine; there is no need to revise the mould’s form. RDMS shows customers a part-to-CAD comparison to prove the fidelity of the machined shape to the design.

“A two-shot mould from China that a company was recently sourcing had ripples in the surface that their polisher had trouble removing,” explains Richardson. “We remade the tool by high-speed machining alone, without the need for any sparking, and eliminated all of the difficulties. It was an important issue for the user, as the cosmetic appearance of plastic components is increasingly important these days, added to which inaccuracies in a multi-shot mould can cause stresses and cracks in the parts it produces.”

The feature of equipment from Roeders that originally clinched its selection by the toolmaker, after four different machining centres had been trialled, was the ability of the machines to scan across the shut face, down into the mould features and then back up to the shut face in one continuous path, producing razor sharp edges at the transitions.

According to Richardson, if lower quality machines try to achieve a similar result, edge quality is lower and definition is lost in the moulded part. Modern inspection techniques can easily identify such imperfections. The solution is to machine the shut face first in its entirety and then the mould features, but that takes longer, requires more job management and lowers profitability.

To cope with an increasing order book and reinstate the high milling accuracy originally obtained with the 20-year-old Roeders machines, the two early models have now been supplemented by a pair of more modern, three-axis, high-speed machining centres from the same manufacturer. It leaves the 600p machine free to produce nearly all of the graphite electrodes in use at the factory, as well as mould tools. The RP800 also continues to run.
RDMS’ new RXP500 has a 500 x 455 x 240 mm machining envelope and 60,000 rpm spindle, while the new RXP801 offers 800 x 635 x 400 mm and 42,000 rpm. Both machines have spindle growth compensation and the former is fitted out with an interface for the future addition of an Erowa 120-pallet cell. For now, however, the new machining centres are side by side, with the manual handling device and CMM relocated to serve both machines.

All machining centres on-site are vertical-spindle models from Hurco, not only the Roeders but several own-brand, three-axis models fitted with the WinMax twin-screen control system. In addition to two Hurco BMC30s and the same number of BMC2416s, there is a pair of VMX42i machining centres, the second of which arrived in 2018.

Typical uses include manufacturing bolsters, ejector plates, back plates and other less high-precision work. However, it is notable that the latest Hurco VMX42i has linear scales rather than rotary encoder feedback of axis position to the control, making it sufficiently accurate for the finish-machining of dies.

Richardson concludes: “The future is more automation, to enable us to remain competitive on price and keep lead-times short, this being one of our USPs over competitors, especially those overseas. The other pillar of our work is continued use of top-quality Roeders machines, as they allow us to deliver perfect moulds, first time. That is essential, as it’s very expensive to take a tool out of commission for adjustment. The service we receive is excellent, not only from Hurco but direct from the German factory, which is linked to all four machines for remote monitoring and troubleshooting.”

For further information
www.hurco.co.uk

Mills CNC, the exclusive distributor of Doosan machine tools in the UK and Ireland, has recently supplied Birmingham-based Cutting Blue Ltd, the newly-created manufacturing arm of engineering consultancy and training specialist, Cutting Blue Solutions Ltd, with a new Doosan vertical machining centre.
The machine, a large-capacity DNM 6700, was delivered and installed at the company’s 2000 sq ft facility in Saltley in September 2020 where it is being used to machine (in mainly small batch sizes at this moment in time) high-precision and high-value components for a range of customers operating in the motorsport and general engineering sectors – to name but a few.

The creation of Cutting Blue Ltd is the brainchild of owner and managing director, Piotr Parobczy. Having started his working life, first as a machine tool setter and then as a CADCAM programmer, Parobczy used this knowledge and experience, gained from working in a number of different manufacturing environments, to develop and hone a range of specific engineering consultancy skills.

The acquisition of these skills ultimately enabled him to start, and secure, work as a contractor where over the years he was responsible for the design and implementation of innovative and high-value projects for a number of UK- and internationally-based customers.

Following on from this success, and having built up an impressive track record Parobczy, in 2017, set up Cutting Blue Ltd, an engineering service company providing specialist training and consultancy services to blue-chip and progressive manufacturing companies.

Says Parobczy: “Cutting Blue Ltd began its life as an engineering consultancy. However, even back then it was always my ambition and intention to create a manufacturing company – when the time was right.”

That time, as it transpired, was in spring 2020.
“The pandemic had a detrimental effect on the availability of contract work and this proved to be the catalyst I was waiting for,” he says. “As the creation of a manufacturing company was a long held ambition of mine, I wasn’t starting such an undertaking from scratch. To a large extent, much of the preparatory work and planning had already been done.”

These plans covered all aspects of the business, including the location of the new company, the services it would provide, typical customer profiles and so on.

Continues Parobczy: “I chose Birmingham due of its central location and because I knew the area well. From my background and experience the company would not be a ‘jack of all trades’ operation, but instead would offer specialist, high-precision milling services to customers typically operating in the high-end motorsport, automotive and aerospace sectors.”

To realise its ambitions and objectives, Cutting Blue needed access to advanced machine tool technologies and made the decision, from a reliability perspective and to provide a clear statement of intent, to invest in a new rather than a used machining centre. Cutting Blue subsequently approached a number of machine-tool manufacturers with its requirements.

“Several companies I approached sent in literature but didn’t follow things up,” says Parobczy. “I got a different reception and reaction from Mills CNC who, from the outset, adopted a more proactive and partner-led approach. They took time to understand the business and the type of work that would be undertaken, and worked collaboratively with me to identify the optimum machine-tool solution.”

Understanding the type and size of components, the typical materials to be machined (i.e. aluminium, steel, stainless, titanium and engineering plastics), the typical part accuracies and surface finishes that would be required, and the volumes/batch sizes to be machined – resulted in the identification, selection and ordering of a Doosan DNM 6700 – a large-capacity vertical machining centre.

The Fanuc-controlled DNM 6700 installed at Cutting Blue’s facility is a highly-rigid machine that delivers speed, high accuracy and unrivalled process reliability. Equipped with an 18.5 kW/12,000 rpm directly-coupled high-speed spindle, the machine also features a 1500 x 670 mm work table with a 1300 kg maximum table load, a 30-position ATC, roller LM guideways in all axes and thermal error compensation routines. In addition, the machine houses a Blum TC50 workpiece touch probe and Blum ZX Speed IR tool-setting probe.

Concludes Parobczy: “I was already familiar with Doosan machine tools and knew that they were reliable, represented great value and delivered excellent cutting performance. The DNM 6700, with its large work table, will provide much-needed capacity, capability and flexibility now and in the future, enabling us to machine large or multiple smaller parts in one set-up. Although still early days I’m delighted with the DNM 6700 and am already looking at investing in second Doosan machine.”

For further information
www.millscnc.co.uk

Altex Engineering, a precision subcontractor based in Calne, has invested in a new Salvagnini L5 CNC fibre laser cutter to increase capacity and meet growing demand. The 6 kW machine is notable for its 50 µm beam which, in combination with its proprietary Air Pressure Multiplier (APM), means it is possible to cut mild steel, aluminium and stainless steel up to 10 mm thick using nothing more than a standard compressed air supply.

Established over 30 years ago by current owner John Jackett, Altex Engineering has grown into a 30-employee business with UK-wide customers in sectors such as medical, telecommunications, defence and office furniture. The company, which undertakes fabrication, machining and finishing operations, extended its Wiltshire premises in 2014 and today commands space of circa 20,000 sq m.

Altex is committed to an ongoing programme of investment in plant, software and processes, key among which is laser cutting.

“Due to rising orders, we recently ran out of capacity on our existing Salvagnini L1Xe laser cutter,” explains Jackett. “We therefore took the decision to invest in another machine – the L5 – and take advantage of the progression in technology. The two machines are now running side-by-side.”

He recalls the time 10 years ago when he invested in his first Salvagnini, the aforementioned L1Xe. When installed in 2010, it was thought to be the first fibre laser cutter in the UK from any manufacturer.

“So many people were sceptical,” he states. “CO2 laser-cutting technology was dominant and hardly anyone had heard of fibre lasers – it took a real leap of faith. I even visited Salvagnini’s headquarters in Italy to see a demonstration. Although everyone thought I was crazy to consider a fibre laser, we went ahead and bought the L1Xe. Over the years it’s been a fantastic performer and is still going strong today. We simply ran out of capacity.”

The arrival of significant new contracts from the telecommunications sector proved to be the tipping point. It was clear that alongside extra capacity, Altex would need to seek out a new machine with even greater speed and efficiency.

“I looked at several machines but the L5 was best,” states Jackett. “Speed was certainly a factor.”

The L5’s highly dynamic laser cutting system has no optical path and is equipped with a patented compass that comprises two carbon arms. A pair of rotary motors drive these arms to move the laser head dynamically in the XY plane in small steps, reducing the movements of the whole carriage. A specially developed algorithm in the control provides the greatest acceleration to the axis with least inertia, thus ensuring highly dynamic performance of both the cutting movement and rapid traverse motion.

In combination with the new 6 kW high power density source, the L5 is notably faster than previous-generation models. For instance, in tests against the company’s L3 with a conventional 6 kW source, cutting times were 30-40% quicker on materials up to 3 mm thick, and 10% quicker on 4 mm thick material. From 6-10 mm, the performance was the same.

These elevated performance levels also help from a quality perspective. The quality gap that historically differentiated between cutting with nitrogen and air has now narrowed to negligible levels. Higher power density and ultra-fast cutting speed help to reduce the opportunity for oxidation at the cutting edge, vastly improving its quality.

A further influencer for Altex in favour of the L5 was low running costs, as Jackett explains: “Unlike our L1Xe, which uses nitrogen, we can cut with standard compressed air on the L5, which provides a significant reduction in operating costs and a more competitive way of cutting. The L5’s APM will clean, dry and boost the pressure to ensure we can cut much thicker plate using compressed air than anyone else.”

Profiling with compressed air is considerably cheaper than using nitrogen. The level of savings vary but, in simple terms, the higher the cost of nitrogen, the more cost-effective it becomes to cut with air. Using Salvagnini’s APM, the cost savings grow even further as there are no costs for dedicated compressors: the compact, turnkey APM connects directly to the shop’s pneumatic supply. APM normalises the pressure, and filters and dries the compressed air to ensure cutting optimisation.

Another factor in the Altex purchase decision was accessibility, with Jackett impressed by having access to the full length of the table via an up and over door.

“The machine’s versatility is also beneficial,” he adds. “If I want to stop mid-cut due to an urgent request for a 1-off, we can do this easily with the L5, which is very user-friendly. However, possibly the biggest reason for buying the L5 was our personal experience of Salvagnini machinery and the excellent service back-up we receive.”

Installation of the Salvagnini L5 took place in July 2020. Although the machine cuts material up to 10 mm thick, on a day-to-day basis the L5 at Altex processes parts made from zintec up to 3 mm thick, as well as various gauges of stainless steel and aluminium. Batch sizes extend from 1-off up to 10,000.

“With Salvagnini’s help our team learnt how to run the machine within a couple of days,” says Jackett. “We’ve had nothing but excellent support from Salvagnini across the entire decade of our association.”

The L5 is currently running continuously over an 8-hour shift, with plans to extend its use to a second shift in the near future.
“Our operators love it, not just because it’s such an exciting machine, but because it gets through work quicker, which makes them look good,” says Jackett with a smile.

“The COVID-19 pandemic has been challenging for everyone, but at Altex we’ve seen strong demand from certain sectors, notably telecommunications and healthcare,” he adds. “We’re also starting to see a certain amount of our more traditional work return, which is encouraging. For these reasons we felt that now was the right time to invest and stay ahead of our competitors, who may be thinking the opposite. We’re trying to look at the long-term, as investments like the L5 will put us in a really strong position when the economy really gets moving again. We will have the best technology in place and can easily add shifts in response to demand.”

Business at ISO9001-accredited Altex is all about meeting the exact requirements of the customer in a cost- and delivery-optimised way.
“We’re not just another subcontractor, we’re a full service provider and can offer design advice to help reduce manufacturing costs,” concludes Jackett. “If there are savings to be made because of the technology we use, these will be made apparent to the customer at enquiry stage – I built the business on this very ethos.”

For further information
www.salvagninigroup.com

The installation of advanced technology supplied by CNC Robotics at ASCO Engineering and Surface Technology means the company can now offer a wider range of machining, coating and repair processes. By adding a robot-based system for laser-metal deposition and hard-facing cladding, CNC Robotics has extended the range of manufacturing techniques used at ASCO.

Andy Deegan, the company’s chairman, believes that the system has made ASCO more versatile than any equivalent supplier in Europe, creating the ultimate one-stop-shop.
Based in Skelmersdale, Lancashire, and with a second site in Dubai, ASCO offers a comprehensive service incorporating CNC precision machining, fabrication, surface coating, diamond grinding and superfinishing repair technologies. Alongside an extensive machine shop equipped with CNC lathes and machining centres, the site houses specialist coating equipment, including proprietary systems specifically designed for the company’s processes. To support manufacturing operations, ASCO’s in-house metallurgical laboratory offers the testing of coatings to international standards and CNC co-ordinate measuring machines for dimensional inspection, ensuring the certification of precision components to within microns.

Laser-metal deposition and hard-facing cladding allow the deposition of coatings such as tungsten carbide, Stellite and Inconel with a significantly lower and more localised heat-affected zone (HAZ), even when using materials that are difficult to weld. This capability means that the process has a minimal impact on the mechanical properties of the substrate material, and reduced potential for distortion and damage to the chemistry and structure of the base core material. In addition, the small melt pool enables the processing of very complex geometries in a single set-up, when depositing protective surfaces, undertaking repairs or creating near-net shapes.

The flexibility of the robot cell supports the ability to work with very complex shapes. Offering six-axis movement, the robot is fitted with specially designed work holding that adds a further three axes, giving the potential for nine-axis operation. In addition, an optional special head allows the internal cladding of bores up to 2 m in length and down to 55 mm bore size.
Deegan had used robots in the company’s thermal spray booths for several years and recognised their advantages in repeatability and consistent quality. With high levels of dust and noise in the booths, they also provide health and safety benefits. However, he felt extra support would prove beneficial in developing the new process.

By chance, Deegan met Jason Barker, chief technical officer at CNC Robotics, at a classic car show.
“We started talking about Jason’s car and things developed from there,” recalls Deegan. “I explained my idea for a robot-based laser deposition system to Jason and it soon became clear that he was the right man to make it all work.”

The main challenge for the system resulted from the variety and complexity of the shapes processed at ASCO Engineering, since the laser has to be as near as possible to 90° to the surface of the part. To overcome this obstacle, CNC Robotics proposed a Kuka robot that includes very few restrictions on its range of movements.

Head of the laser department at ASCO, Andrew Mawsley, worked with Barker and the CNC Robotics team to install and test the new process.

“It seemed quite complicated at first but, once Jason had helped me to get familiar with the system, it became much easier, even for the more complex jobs,” he says.

Mawsley had a basic knowledge of C++ programming from his university course and also uses Orange Editor software on a laptop to create programs for the robot.

“Using the laptop, rather than the robot control, means that I can start one process running and begin programming the next job,” he explains.

While the new system is predominately for adding coatings to new parts, it has also proved valuable in component repair. For these projects, repair material is applied in layers of up to 1 mm per pass and then ground back to give the final surface. Dependant on client requirements ASCO is, in reality, able to clad to any thickness.

The main benefit of the new system is the consistency of results. Many of the coating materials used at ASCO Engineering are very expensive blends that are necessary to provide the required corrosion resistance and wear resistance. Many of the parts made by the company find their way into demanding applications, such as those in the oil and gas, power generation, mining, and aircraft industries, where any failures can lead to costly losses in production.

“The robot system is at its best when we are working with batches of parts,” states Deegan. “We can process the first part, confirm that it’s dimensionally accurate and carry out full laboratory checks on the surface integrity. Once we know that we’ve set the correct parameters for the first part, we can rely on the repeatability of the robot to ensure the rest of the batch will be equally good.

“The repeatability also helps us to meet on-time delivery requirements,” he adds. “After the first part has been completed, the time the robot will take to repeat any task is very predictable, which makes scheduling easy. If we can guarantee high quality and offer on-time delivery, clients won’t have any need to go elsewhere.”

For further information
www.cncrobotics.co.uk