Make thread - missing in *.STL file

[steenH797P]

HI.

Inventor 2016

If I create a "Hole" and after make thread, the thread don't be export to the *.STL fil.

I have true to use "coolOrange threadModeler", but but can not figure it out, because the video that shows how to do does not match what I see in Inventor.

Maybe I need a better turorial to show exactly in Inventor 2016, how "coolOrange threadModeler" works in Inventor 2016?

How can I make thread in Inventor 2016 and then export it to a *STL file ?

[mcgyvr]

Threads created with the thread/hole tools in Inventor are just cosmetic images applied to that face and are not true modeled surfaces as you have found out..

In general a 3d printed thread isn't going to work with typical thread geometry either so many times you need to physically model a thread profile (by sweeping a profile along a coil)..Thats also what the cool orange tool does and last I remembered it was really darn easy to use but didn't really produce a thread form that could be 3d printed reliably..

I personally would recommend modeling the threads yourself as stated above (sweep profile along a coil)..

I'll see if I can find a video/tutorial of that..

But you will need to modify this thread profile on both parts to adapt for accuracy/precision issues/material sag/flow associated with 3d printing..

In the past I've either use a tap or a thread forming screw when I needed threads in a 3d printed part or use a design that negates the need for such..

[mcgyvr]

Found this which I think shows how to use the coolorange tool..

http://blogs.autodesk.com/inventor/2016/08/30/convert-fake-threads-to-real-threads/

First video I found about modeling threads..

I didn't scan it for accuracy but just glanced at it and I think it covers the basics..

 https://www.youtube.com/watch?v=5tdDkYQxrew

[steenH797P]

Have you make objects with thread ?

[mcgyvr]

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@steenH797P wrote:

Have you make objects with thread ?

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I have... a few times..

In general I avoid threaded features in 3d printed parts..

[kelly.young · Accepted solution]

Hello @steenH797P coolOrange identifies the Visual Thread and creates a Coil Cut to the desired size.

You can make the threads larger so the printer can make them more accurately. As long as they are mates to each other you can create your own custom threads.

It helps to make an additional chamfer on the edges. You can do this from the mid plane using Revolve Cut.

Hope that helps!

Please select the Accept as Solution button if a post solves your issue or answers your question.

[JDMather]

I have 3D printed many threads.