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Home Xometry Community Industrial Design Thread Cutting in 3D Printing

Thread Cutting in 3D Printing

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How can I cut threads into 3D printed parts for functional prototypes?

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Solved by Evgeny M
Here’re a few possible approaches for you to consider: 1. Design Threads into the Part: Directly design threads into your part using CAD software. This method requires precise control over thread dimensions and printer settings to ensure the threads print correctly. It won’t work with all 3D printing processes, though. 2. Tap the Threads After Printing: Print the part with pre-designed holes and then use a tap to manually create the threads. This method is reliable for creating strong, precise threads and is suitable for larger threads. 3. Inserts: Print your part with slightly undersized holes, and then insert helical coil inserts or metal threaded inserts into them. This method enhances the strength and durability of the threads and is ideal for parts that will undergo frequent assembly and disassembly. The latter is probably the most reliable option.

    • How can I cut threads into 3D printed parts for functional prototypes?

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      Reply

    • Here’re a few possible approaches for you to consider:

      1. Design Threads into the Part: Directly design threads into your part using CAD software. This method requires precise control over thread dimensions and printer settings to ensure the threads print correctly. It won’t work with all 3D printing processes, though.

      2. Tap the Threads After Printing: Print the part with pre-designed holes and then use a tap to manually create the threads. This method is reliable for creating strong, precise threads and is suitable for larger threads.

      3. Inserts: Print your part with slightly undersized holes, and then insert helical coil inserts or metal threaded inserts into them. This method enhances the strength and durability of the threads and is ideal for parts that will undergo frequent assembly and disassembly. The latter is probably the most reliable option.

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      • Xometry Engineer
        Evgeny M

        Designing threads into the part is a valid option only for MJF and SLS processes – for other technologies, the thread might not be perfectly printed and will probably need additional post-processing operations to properly rework its shape.

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    • c

      If it has a low melt temp you can add brass threaded inserts using a soldering iron to heat & press them into the hole

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    • Nikolaus Mroncz

      Good point, thank you!

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Thread Cutting in 3D Printing
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