Why 3Shape doesn’t give .PTS for RPD frame
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3Shape’s design approach:
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For crown/bridge/implant, the restoration is parametric → they generate a .PTS (construction file) that stores parameters (margin, cement gap, etc.), and their CAM knows how to mill it precisely.
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For RPD frame, 3Shape treats the design as a freeform mesh (like sculpture), not a parametric restoration.
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Result → output is STL only, no construction file.
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Exocad’s difference:
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Exocad’s “construction info” can be saved with the file (margin lines, insertion axis, etc.).
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This allows milling CAMs (like MillBox) to interpret the data more precisely.
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👉 So, 3Shape basically expects labs to 3D print or cast RPD frameworks from STL, not to rely on CAM construction parameters like crowns.
If your customer specifically wants .pts for accuracy milling and you already design in 3Shape
Export your RPD frame as STL and ask your customer manually set parameters in CAM software → higher risk of inaccuracies or longer prep time
So please check careful with customer in advance with method they prefer to produce frame ( casting, printing or milling), which method we will choose correct output
If you’re only printing frameworks, STL is usually enough → 3SHAPE is good choice
If you want to mill frameworks in CoCr, or Peek → PartialCad with construction file is your option