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Physical Digital provide 3D scanning for high-accuracy data

We were delighted to carry out 3D scanning on a client’s Reliant Robin recently.

With its iconic design, economical engine and instantly recognisable features, the Reliant Robin was an environmentally friendly 3-wheeled, 4 seater vehicle from the 1970s until production finally ceased in 2001. In its way it was a design classic equal to any of the top marques from world-leading automotive companies.

So we were delighted to provide our 3D scanning service for a client’s Reliant Robin recently. Watch the video here.

3D scanning for high-accuracy data

The Reliant Robin was prepared in our facility in the Midlands – it has to be clean and dry – and we sprayed the windows with a non-reflective spray to make data capture easier, as shown in the image below. Then we placed coded and non-coded markers around and on the vehicle.

Robin prepared for photogrammetry

Using the GOM ATOS Triple Scan mobile 3D scanning system and TRITOP industry-leading photogrammetry system, we were able to capture high-accuracy, fully-traceable 3D scan data which can be used to create a CAD model or for digital archiving. The portable 3D system is a versatile optical coordinate measuring machine (CMM) with a wide range of capabilities. Highly accurate point measurements are taken and inspection can be carried out directly to CAD models, geometry or drawings.

What is Photogrammetry?

Photogrammetry is the science of making measurements from photographs. The type of photogrammetry we use, close-range photogrammetry, is where the camera is close to the subject, giving highly-accurate 3D models as output.

The GOM 3D non-contact photogrammetry system uses a verified DSLR camera to capture information quickly and in a wide range of environments, which makes it ideal for many different industry sectors.  High resolution images were taken using this DSLR camera from a number of locations around the car. The photogrammetry software automatically calculates the 3D coordinates of the measurement points, their displacements and deformation and presents the results in an easy-to-understand and intuitive manner.

Reliant Robin – Iconic 3-wheeler

The Reliant Robin was an economic 3-wheeled car produced by the Staffordshire-based Reliant Motors Company, once the second largest all-British car maker. Reliant was founded in 1935 when engineer T L Williams developed a 3-wheeled delivery van after his employer, the Raleigh Bicycle Company, decided to cease working on 3-wheeled van projects in the 1930s. Williams was convinced that there was still a market for three wheeled models and set about developing the concept in a shed in his garden in Tamworth. The initial three wheeler was powered by a 750cc V-twin engine driving the rear wheels through a 3-speed gearbox and shaft drive. In effect, it was ridden like a motorcycle with a box at the rear.

One advantage of the vehicle was that it could be driven on a motorcycle licence and only attracted the motorcycle rate of road tax, which, combined with its light weight and fuel economy, meant that it was a value-for-money option for those who preferred to avoid the rain when travelling on the roads. Reliant began producing cars as well as vans, introducing the Robin version in 1973. Reliant pioneered glass-fibre technology, which ensured that the vehicles were light and long-lasting. Also, contrary to popular belief, they are not easy to overturn on bends. However, due to a decline in demand, production of the cars ceased in 2001.

Our Applications Engineers have wide experience of 3D scanning a range of objects including many vehicles of the two, three and four wheeled variety. Contact us on 01483 750200 or email info@physicaldigital.com to find out more about how our 3D scanning services can transform your project, whether for prototyping, archiving, design, reverse engineering or inspection.

www.physicaldigital.com

Twitter: @p2dme

Email: info@physicaldigital.com

See the video here.

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