The technical Task

The primary role for Europac3D was to create a digital replication of an authentic Ceredigion Oak Tree that could be used in the manufacture of the physical manifestation of the tree. To make the task particularly challenging Robert identified a tree located on a steep hillside, a couple miles inland from Borth beach that best represented his vision.

From a technical perspective the 3d scanning of a tree is perhaps one of the more challenging objects you might come across, combine this with a steep hillside, densely populated wood and you now have a serious challenge. The technical bods at Europac3D were scratching their heads for a little while, but then concluded that to do this job properly they would need to literally throw the ‘kitchen sink at it’ to solve the many complex technicalities of completing such a job. They called in a crack team of 3d scanning professionals, all leading experts within their chosen fields of specialism.

It was decided to use just 3 technologies, in order to best capture the tree from all angles and perspectives. To capture the lower parts of the tree in high resolution an Artec Leo handheld 3D scanner was chosen, then a Leica terrestrial laser scanner was used for the mid-section of the tree and finally airborne drone photogrammetry was used for the high bits that traditional scanning techniques could not reach.

This Artec Leo was the perfect choice of 3D scanner for capturing the lower areas of the tree, with a capture window of 500mm by 800mm it was the ideal choice to rapidly capture the geometry of lower areas and  guaranteed that the most visible, intricate areas of the final physical tree would be captured in the highest quality. Beyond winching our operator into the canopy of the tree there is a limit to what you can realistically capture with this type of technology and therefore to reach the areas beyond hand scanning height Europac3D brought in our good friends from Efficacy4D.  A specialist in terrestrial laser and drone photogrammetry scanning Efficacy4D bring a wealth of knowledge in large object scanning that is renowned throughout the film and TV sectors.

Using a Leica terrestrial Laser scanner, Duncan Lees of Efficacy4D, was able to enthusiastically and energetically manoeuvre the scanner about the hillside to capture those areas beyond which a handheld 3D scanner simply cannot reach. Strategically positioning the scanner in key locations about the forest, Duncan was able to maximise his extensive experience to capture the higher areas of the tree to (up to 10M high) that cannot be reached with traditional handheld scanning technologies.

At this point our technicians had captured the lower and higher parts of the tree, however all from a low-level perspective, which means essentially that the tops of the branches had no 3D data. To solve this problem, the experts from Visualskies were brought in to add the vital 3^rd technology to complete the jigsaw of this 3D scanning conundrum. Drone photogrammetry, which involves the capture of high-resolution images taken from a SLR camera attached to a drone, was then used to collect data from above the canopy of the surrounding trees. The combination of these 3 technologies gave our engineers the best chance of capturing 100% data of the chosen tree in question.

What is perhaps significant here is that these are 3 technologies that are not ordinarily combined. Terrestrial laser scanning is most commonly used within the surveying industry for capturing buildings and structural measurements, while handheld scanners are typically used for applications such as medical, engineering and artistic design. These 3 technologies have their own industry standard software and workflows, however, are rarely combined.

The 3 sets of point cloud data were carefully registered and combined by the experts at Europac3D to provide a composite 3D mesh surface model in the form of an STL (Stereolithography) file, which is suitable for many downstream applications including its future physical manufacture. It is also possible to visualise the digital version of the tree in many AR/VR applications, giving an impression to how it might look when it takes its physical manifestation. If anything,  this may well be the  legacy of this project, a piece of digital artwork that helps communicate and visualise our past and the consequences of climate change.

As a technology solution provider, Europac3D has perhaps the broadest range of 3d scanning and printing technologies on the market in the UK and it is this ‘application knowledge’ that sets us apart in our offering. Please contact us if you have tricky application requirements, this is the bit where we excel!

For More Information Contact Europac3D on 01270 216000 or sales@europac3d.com

PA12 PARTS FAST AND AT LOW COST

The HP system produces parts in PA12 Nylon which is suitable for many end-use applications, particularly within the automotive sector and with costs per part at half that of comparable technologies the system offers a real alternative to low volume injection moulding runs in the early development of a vehicle.

Jan Mokrzycki, Sales Manager Pro2pro, comments: “The addition of the HP Multi Jet Fusion 3D printer gives us an extra dimension within the rapid manufacturing sector, we can produce many hundreds of functional end-use parts overnight and be delivering to our customers within 24 hours. Our strengths come from an honest fresh approach, applying a full range or services to help bring products to market to which this turnkey solution can only enhance our portfolio of technologies we offer under the Pro2pro umbrella.”

John Beckett, Managing Director of Europac3D, comments; “Pro2Pro’s use of the HP’s Multi Jet Fusion printer and Dyemansion De-powdering system sets a gold standard for rapid manufacturing service providers, by investing in the complete solution Pro2pro have positioned themselves as a leading provider of rapid manufacturing services in terms of quality, accuracy and fast lead times.”

ADDITIVE MANUFACTURING FOR PRODUCTION IN THE AUTOMOTIVE SECTOR

The purchase of the HP 3D printing system sees a growing trend within many automotive companies and tier1 suppliers; now truly considering multi jet fusion as viable manufacturing process for small batch production runs. Large up-front costs for ‘tooling’ traditional methods are becoming a thing of the past. Furthermore, the demand for more and more personalisation of vehicles that are bespoke to each individual customer has seen many of major car manufacturers, such as JLR and BMW invest in HP additive technologies.

The automotive industry within the UK,  in terms of the production of road cars and within the motorsports sectors is unique compared to other countries by the way that we tend to specialise in high technology and luxury vehicles. Both these sectors perhaps see lower volumes of production, however, have a greater demand for rapid design changes and increasing personalisation. As the only HP business partner in the UK to offer the full sales, service and support directly from it’s base in Cheshire, Europac3D, are uniquely placed to service the growing demand of the automotive industry, as additive manufacturing shifts from prototyping into the full manufacturing environment.

Contact us on 01270 216000 or sales@europac3d.com for more information.