Traditional Building and Architectural Restoration Meet Foam Carving Technology

Traditional Building and Architectural Restoration Meet Foam Carving Technology

 The more things change, the more we're drawn to places that connect us to the past. Whether it's as lofty as a church cathedral or as every day as an office building, the architecture of days gone by has the power to remind us of where we came from.


Maintaining links with the past through architecture has always been a labor of love. Restoring a building that has seen better days or recreating the feel of a historical building has traditionally involved tedious, manual processes hampered by high costs, extensive labor, and inaccuracies. But the times are changing. The development of advanced foam cutting and 3d foam carving technologies has introduced a world of new possibilities for restoring and revisiting traditional architecture.

Gaining acceptance as a lightweight, easy-to-install, cost-effective replacement for traditional building materials, foam is now used to create a range of architectural features, from columns and balusters to moldings and other decorative features. These pieces can be made with foam and then coated with materials that stand up to the elements, or foam can be used to create molds for concrete, cast stone, plaster, and a range of other stuff. Despite this, there has been some hesitation to adopt this material for traditional building and architectural restoration. While concerns about introducing new technology into a field full of tradition may be partly to blame, the technologies available in the past haven't been up to the task.

The introduction and integration of some technologies, including 3D laser scanning, 3D foam milling, and innovative mold-making processes, solve these problems and make foam carving a perfect option for architectural reproduction and restoration. Dwayne Lehman, president of Streamline Automation, a company that has pioneered these technologies, explains that they "essentially eliminate the problems that come with traditional methods, whether it's the amount of labor involved or the inaccuracies. They provide an automated solution that's more efficient and accurate than anything available before."

The process starts with the original architecture, whether it's the real original, a photograph, or even a memory. Where a unique piece exists, the object is laser scanned to create a digital file that's accurate within thousandths of an inch. If the original is long gone, digital data can be created using 3D modeling software to bring the past to life. In both cases, the resulting data can be edited and adapted within the software to ensure accuracy and detail. When restoration work is required, the software can be used to correct the effects of time. As Lehman explains, "this is really where history and technology come together. This system lets you bring architecture back to its original form."

Once the data file has been prepared, it's sent to a 3D foam router, which can recreate the piece in exacting detail using high-density foam. Depending on the nature of the article and its use, there are several options at this point. For less intricate pieces, a positive version can be milled out of foam and coated to produce a sturdy final product. In cases where the final product will be created using cast stone, concrete, plaster, or a range of other materials, new mold making processes allow a detailed mold to be created from either a negative or positive version of the piece. These molds are then used to create the final product.

Lehman explains that the benefits of combining foam cutting and carving technology with innovative mold making processes "go beyond the most obvious time and labor savings. It can recreate and restore with great accuracy, but it also brings new flexibility and efficiency. Architectural designs can be stored digitally and then altered, scaled, or added to as required. So it's not only about perfect restorations, but it's also about allowing new uses of traditional architecture in a modern building."

The result is accurate and authentic reproductions and restorations that are almost impossible to distinguish from original versions. The process brings improvements to traditional methods but still creates end products that capture the originals' spirit and craftsmanship. So while this is a technology that's moving traditional building forward, it's also letting us maintain our connection to the past.

Construction

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