How to recreate a real life thread?

How to recreate a real life thread?

harrison.friedes
Enthusiast Enthusiast
1,098 Views
6 Replies
Message 1 of 7

How to recreate a real life thread?

harrison.friedes
Enthusiast
Enthusiast

I'm trying to recreate this thread in Fusion 360 for 3D-printing and am not exactly sure how to go about it.

IMG_20240224_062932585.jpg

The pitch gauge tool puts it at 20 / .125, and the diameter is ~7.8 mm, but I'm not quite sure what to do with that information from here.

0 Likes
Accepted solutions (1)
1,099 Views
6 Replies
Replies (6)
Message 2 of 7

HughesTooling
Consultant
Consultant

Are you going the print the part with a threaded hole and screw in a steel stud or are you trying to print the male thread?

 


@harrison.friedes wrote:

 

The pitch gauge tool puts it at 20 / .125, and the diameter is ~7.8 mm, but I'm not quite sure what to do with that information from here.


Did you mean 1.25mm? It could be either 5/16 or M8, cheap bolts\studding can be down on size.

The hole tool can create a hole with a modeled thread. But you might need to offset the faces of the thread to add some clearance as 3d printed thread tend to come out small.

HughesTooling_0-1708783089806.png

 

If you are trying to print a male thread, the thread tool also has the option to create a modeled thread.

 

 

 

Mark Hughes
Owner, Hughes Tooling
Did you find this post helpful? Feel free to Like this post.
Did your question get successfully answered? Then click on the ACCEPT SOLUTION button.

EESignature


0 Likes
Message 3 of 7

harrison.friedes
Enthusiast
Enthusiast

Hello, 
You are right it's 1.25mm. And this would be for the male thread. The difficulty is I'm not quite sure which thread type to choose to match. For instance this 5/16 one doesn't match at all:

harrisonfriedes_0-1709169520411.png

Any suggestions much appreciated!

0 Likes
Message 4 of 7

etfrench
Mentor
Mentor
0 Likes
Message 5 of 7

HughesTooling
Consultant
Consultant
Accepted solution

@harrison.friedes wrote:

Hello, 
You are right it's 1.25mm. And this would be for the male thread. The difficulty is I'm not quite sure which thread type to choose to match. For instance this 5/16 one doesn't match at all:

 

Any suggestions much appreciated!


If the pitch is 1.25mm my guess is it's a standard M8 thread. The reason the part measures around 7.8mm is because it's a piece of cheap studding. 

HughesTooling_1-1709195908153.png

 

 

Mark Hughes
Owner, Hughes Tooling
Did you find this post helpful? Feel free to Like this post.
Did your question get successfully answered? Then click on the ACCEPT SOLUTION button.

EESignature


Message 6 of 7

MRWakefield
Advisor
Advisor

I'd definitely second what @HughesTooling says. My immediate thought would be a standard M8x1.25 Metric Coarse. You can choose ISO or ANSI, it doesn't matter which.

 

EDIT: BTW M8x1.25 has a Major diameter of 7.76-7.972 so your 7.8 is within the spec.

If this answers your question please mark the thread as solved as it can help others find solutions in the future.
Marcus Wakefield


____________________________________________________________________________________
I've created a Windows application (and now Mac as well) for creating custom thread files for Fusion. You can find out about it here. Hope you find it useful.
If you need to know how to offset threads for 3D printing then I've created a guide here which you might find useful.
If you would like to send me a tip for any help I've provided or for any of my software applications you've found useful, you can do this via my Ko-Fi page here.
____________________________________________________________________________________

Message 7 of 7

harrison.friedes
Enthusiast
Enthusiast
This was it, thank you!
0 Likes