Application history of 3D scanning: solving various tasks in real production facilities
Reverse engineering, geometry control, non-contact measurements, creation of equipment for scientific experiments, virtual museums, product design and other applications of 3D scanners
3D technology has helped to correct spelling errors on the war memorial
3D technology has helped to correct spelling errors on the war memorial
The Calibry 3D scanner helped to carefully replace the wrong letters in the names of veterans while preserving the original appearance of the text.
Briefly: Specialists from Gala Creations Ltd were asked to correct spelling errors in the names of veterans at the Tower Hill Memorial. They used a Calibry Mini 3D scanner to digitize the letters. The task: to preserve the historical appearance. The new letters must be indistinguishable from the original ones. Tools: Calibry Mini 3D scanner, AESUB Blue scanning spray, Calibry Nest software and MatrixGold software. The result obtained: Quick and accurate replacement of incorrect letters.
The Tower Hill Memorial is located in Trinity Square, on Tower Hill in London. It consists of two monuments; one is dedicated to the First World War, and the second is dedicated to the Second World War. The memorial was erected in memory of civilian merchant sailors and fishermen who died during the fighting and whose graves are unknown.
Tower Hill Memorial
The first Memorial dates back to 1928, and the second to 1955. Research conducted by historical heritage preservation groups has shown that there were spelling errors on the monuments. Sometimes people joined the army under assumed names, and the soldiers' records might not be accurate enough.
The specialists from Gala Creations Ltd were asked to correct these errors. The work had to be done carefully and preserve the historical appearance. The company specializes in jewelry design and actively uses 3D technologies. Thus, it was an ideal candidate for this project.
First, Gala Creations specialists had to digitize the letters of the monuments using a Calibry Mini 3D scanner. They used a generator to power the scanner, as the work took place outdoors. Although Calibry easily captures glossy objects, they used AESUB Blue scanning spray (it disappears automatically after a few hours) to ensure high data accuracy. Besides, as one of the managers recalls, it was a sunny day, so I had to play it safe. It was also necessary to adjust the brightness settings on the scanner, so the presence of a display on the device was very useful.
Fonts of different sizes were used for the memorials of the First and Second World Wars, so experts digitized the letters in four different versions. A company representative admitted that, despite the huge workload, scanning with Calibry Mini was easy.
Samples of letters of different sizes.
After post-processing the data in Calibry Nest, Gala Creations used MatrixGold software to add pin indentations and print about 200 wax bases.
Screenshot of the scanned image in the Calibry Nest program.
Photo of wax bases.
The customer then prepared the wax molds for casting in bronze, cleaned them and patinated them to match the existing letters on the monuments.
Finally, pins were added manually, and new letters were affixed to the Memorial.
Freeform Fabrication LTD, a Thor3D distributor in the UK, provided Gala Creations with a scanner for this project.