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General Question concerning threads [message #68599] Fri, 24 May 2013 06:05 UTC Go to next message
avatar Shizo  is currently offline Shizo
Messages: 0
Registered: May 2013
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Junior Member
At first hi everybody at shapeways!
I am absolutely new to 3D printing and therefore i have some questions regarding threads Smile If I add for example an external M24 thread onto hollow tube with a certain thickness, is this in first place considered in the 3D print and is it possible to print standard ISO threads anyways?

If not, is the frosted detail material capable beeing threaded afterwards?

Best regards and thanks in advance Very Happy
Re: General Question concerning threads [message #68625 is a reply to message #68599 ] Fri, 24 May 2013 15:44 UTC Go to previous messageGo to next message
avatar FreeRangeBrain  is currently offline FreeRangeBrain
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Registered: April 2013
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Junior Member
Printed parts are not as accurate as machined ones. That being said, you could definitely print a pair of threaded parts that will fit together properly. It might take a few tries to get the pair to mate properly, though. What may be more expedient is to make the threads a bit on the tight side and then "chase" the threads with a tap or die as appropriate to get a good fit. This will have far less cutting force involved, since so little material would be getting removed, compared to a plan bore or shaft, thus making it fairly easy to thread relatively delicate parts.

Creativity - sometimes by the brute force method.
Re: General Question concerning threads [message #69273 is a reply to message #68599 ] Thu, 06 June 2013 02:54 UTC Go to previous messageGo to next message
avatar JeremyMallin  is currently offline JeremyMallin
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Registered: September 2012
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I was able to print a model that fit a standard 1/4" x 20 threaded rod (off the shelf rod). It can be done if you're careful. Check ISO, SAE, SME or similar specs before designing. I also added a bit of extra play to account for the stated material tolerances. (rounding the tips of the threads, etc.) Material choice makes a difference too as each material has it's own printing tolerances. The model I printed was Polished and Dyed Strong and Flexible (Nylon-based).
Re: General Question concerning threads [message #69276 is a reply to message #69273 ] Thu, 06 June 2013 07:02 UTC Go to previous message
avatar AmLachDesigns  is currently offline AmLachDesigns
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Registered: September 2011
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Shapie Expert
Also this thread may be useful:

screw Design

Previous Topic:Thin Wall or Embossed Detail
Next Topic:Second Print run always a looser fit - same stl file, looser tolerances



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