6/11/2023 0 Comments Realism artifactSanding, the most time-consuming step in the finishing process, completes the removal of the scaffolding columns. Then a file is used to shave down those areas until they are flush with the surface of the object. This is done with a knife, hacksaw, or electric band saw depending on the replica. The first step is to remove the scaffolding. Removing the attached scaffolding is where the art of finishing the object begins. Jared outlined his steps for taking the replica from fresh-off-the-printer to finished object. The details of the finishing process continue to evolve as Jared applies his existing skills and refines his methods for finishing printed objects. Jared has experience creating replicas of artifacts using manual skills like flint knapping and woodworking to produce things like hafted stone tools, so this was a logical extension of his expertise. Our expert in applying the finishing touches to artifact replicas is Jared Pebworth. Because of the material used and the specifics of the printing process, producing a close approximation of the aesthetic, finish, and overall feeling of the original object requires skill and an artistic touch. The filament printer produces amazing results, but objects do not come right off the printer looking identical to the original. 3D printed replica of a clay pipe from the JEC Hodges Collection (HSU), on the print bed. ![]() These replicas also come off the printer with an attached scaffolding that holds the object upright as it prints. The hollow interior allows the printer to produce objects using less filament, and in less time, than if the object were solid. It produces 3D models with a solid shell and a mostly hollow matrix inside. The 3D printer the Survey acquired in 2018 with the help of an Arkansas Natural and Cultural Resources Council grant is a filament style printer which uses plant-based plastic to print objects one layer at a time. The replicas created by this printer are great for use in teaching and for exhibits because they allow people to hold, touch, and look up-close at details of artifacts when the original object is too rare or fragile to be handled or even taken outside the collection facility. In addition to images, 3D scans can be used in conjunction with 3D printers to create physical replicas of the original artifact. Scanned objects can be used for research purposes because the process involves very accurate measurements and produces digital 3D images which allow the viewer to turn the image and to view all sides of a scanned object. Since 2018 the Survey has been using a scanner and 3D printer to produce replicas of objects in our collections. This shows the realism that can be achieved. By Jared Pebworth and Lydia Rees 3D printed replica of a Mississippian frog effigy pot from the ARAS Collections, finished by Jared Pebworth.
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