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Home Xometry Community Industrial Design Tapping threads – DMLS parts

Tapping threads - DMLS parts

0
J
2

Hey everyone,

I’m working on a DMLS project and need to tap M10 threads into the part. Can anyone recommend the best/most cost-efficient design strategies for this? Here are my considerations:

  • Creating an 8.5 mm diameter vertical hole and relying on the precision of DMLS.
  • Creating a smaller hole (e.g., 6 mm), letting it be printed, and then drilling it out to 8.5 mm for more precision.
  • Not designing a hole at all and having it CNC drilled to 8.5 mm after the part is ready.

Any experiences or advice would be greatly appreciated!

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Solved by Greg Paulsen

Great question. DMLS is precise enough that if you build the hole to the standard drill size, it can be directly tapped during post-processing. In this case, M10 threads would require an 8.5 mm hole. If this is a blind hole, please make sure that you have extra room for the tap to engage into the threads since the taps have a taper at the tip. I like to add 3-4 pitches of additional clearance at the bottom of my blind hole if possible to make sure threads are cut cleanly to my desired thread depth.

    • J

      Hey everyone,

      I’m working on a DMLS project and need to tap M10 threads into the part. Can anyone recommend the best/most cost-efficient design strategies for this? Here are my considerations:

      • Creating an 8.5 mm diameter vertical hole and relying on the precision of DMLS.
      • Creating a smaller hole (e.g., 6 mm), letting it be printed, and then drilling it out to 8.5 mm for more precision.
      • Not designing a hole at all and having it CNC drilled to 8.5 mm after the part is ready.

      Any experiences or advice would be greatly appreciated!

      0
      Reply
    • Xometry Engineer

      Great question. DMLS is precise enough that if you build the hole to the standard drill size, it can be directly tapped during post-processing. In this case, M10 threads would require an 8.5 mm hole. If this is a blind hole, please make sure that you have extra room for the tap to engage into the threads since the taps have a taper at the tip. I like to add 3-4 pitches of additional clearance at the bottom of my blind hole if possible to make sure threads are cut cleanly to my desired thread depth.

      0
      Reply
      Link copied
      • J
        Greg Paulsen

        Many thanks!

        0
        Reply
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Tapping threads – DMLS parts
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