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CNC Metal Fabrication, a manufacturer of electronic instrument cabinets based in Toronto, Canada, has achieved a 90 per cent scrap reduction thanks to Jetcam high-performance nesting.

The company acquired its first licence of Jetcam Expert computer-aided-design/computer-aided-manufacturing (CAD/CAM) software with a Finn-Power punch press in 1992, but also acquired CAM systems with other machine purchases, which, over time, needed consolidating.

Chandrakant Patel, engineering manager, said: ‘We’ve replaced the first Finn-Power twice since 1992 and with each new Finn-Power machine we’ve used Jetcam without problems.

‘We had an old CAM system that was driving another punching machine, but this had no automatic tooling capability and was difficult to use.

‘When we purchased our first Mitsubishi laser in 1999, another system was recommended, which we were advised could drive it.

‘We were told it was the best system for laser machines, but it too proved difficult to learn and did not seem to have the same level of functionality as Jetcam.

‘Parts sometimes require both laser and punching operations, which needed programming on two separate systems.’ By this time, CNC Metal had used Jetcam Expert with high-performance rectangular nesting to drive three Finn-Power punch presses along with a Danobat punch press, purchased in 2005.

After replacing its Mitsubishi with a newer model, it contacted US distributor Nestone Solutions to see whether Jetcam could be upgraded; in doing so, the company discovered that a postprocessor already existed.

It decided to standardise on Jetcam and purchased postprocessors for its two licences to drive the new laser.

Chandrakant added: ‘The old system had no form of auto-tooling, so the process of tooling up punched parts is 50 per cent to 70 per cent faster, with programming reduced overall by around 30 per cent.

‘Although most of our runs are short, our sheet utilisation has improved considerably, often by up to 20 per cent, which has reduced our scrap levels by up to 90 per cent.

‘As Jetcam stores the tooling information on the part, not the nest, we can store both punch and laser information and then generate a nest for any of the machines immediately.

‘Previously, we used to keep NC code of old nests, but we don’t need to do that anymore.

‘Also, features received in new versions such as “finishing cuts” have further reduced programming time and improved the quality and speed of getting to the finished part.’

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