topic Re: SAE Thread In Fusion in Fusion Design, Validate & Document Forum

SAE Thread In Fusion

Anonymous — Thu, 30 Sep 2021 00:50:27 GMT

Sorry if this has been discussed multiple times. I've seen a few posts, but none of them indicates if there is a way to import SAE thread patterns into fusion.

I'm looking to 3d print AN caps and plugs but don't see the correct thread type. I've tried UNF, but it won't work.

Any help is appreciated.

Re: SAE Thread In Fusion

Haad_Ali — Thu, 30 Sep 2021 04:13:59 GMT

If you don't find the thread pattern in the thread command. You can model your custom thread in fusion and save it for later usages. Until, it is available in the new update.

Re: SAE Thread In Fusion

HughesTooling — Thu, 30 Sep 2021 08:21:10 GMT

@Anonymous Do you have some info on the thread specs? Looking at this page they have some info on diameters and pitch and it looks like UNF threads are the correct diameter and pitch. For example 3/8-24, or is the thread form different?

Re: SAE Thread In Fusion

HughesTooling — Thu, 30 Sep 2021 08:31:18 GMT

@Anonymous wrote:

I've tried UNF, but it won't work.

Any help is appreciated.

When you say they didn't work is that because when you printed the UNF thread it was too small? If that's the problem that is pretty much what you'd expect unless you spent a lot of money on a good 3d printer. With any of the FFF printers you'll need to print threads over size.

One trick is to scale the thread in 2 axis to increase the diameter or press pull the faces of the thread to create more clearance.

Non uniform scale.

Press pull, you might need to increase the diameters with press pull as well.

Maek

Re: SAE Thread In Fusion

TheCADWhisperer — Thu, 30 Sep 2021 11:33:43 GMT

@Anonymous wrote:
1. ... SAE thread
2. I'm looking to 3d print AN caps and plugs but don't see the correct thread type.
3. I've tried UNF, but it won't work.

1. Exactly what thread specification?

2. Help me out here, what are AN caps and plugs?

3. Threads have standard specifications, it is best to start with the specifications rather than try some other standard. (See #1)

Re: SAE Thread In Fusion

Anonymous — Thu, 30 Sep 2021 18:45:30 GMT

Sorry for the delay.

Thread is 9/16" - 18 SAE

The caps I'm printing are this http://www.russellperformance.com/misc/support/

In regards to the 3d filament shrinkage. I've worked out the correct amount of adjustments to the model.

Re: SAE Thread In Fusion

HughesTooling — Thu, 30 Sep 2021 18:58:08 GMT

@Anonymous wrote:

Sorry for the delay.

Thread is 9/16" - 18 SAE

The caps I'm printing are this http://www.russellperformance.com/misc/support/

In regards to the 3d filament shrinkage. I've worked out the correct amount of adjustments to the model.

So what is the difference between that and 9/16 - 18 UNF? Does SAE use a different angle or thread profile? Going to need more info.

Re: SAE Thread In Fusion

race3dprint — Fri, 02 May 2025 01:44:02 GMT

Hello Guys, does anyone have any update in this subject? Looking some screws and caps with this type of thread. Thanks

Re: SAE Thread In Fusion

MRWakefield — Fri, 02 May 2025 11:41:05 GMT

All references I can find on this state that they're standard UN threads. e.g. https://nordictec-store.com/gb/blog/post/everything-you-need-to-know-about-sae-threads.

Re: SAE Thread In Fusion

TheCADWhisperer — Fri, 02 May 2025 12:00:28 GMT

@race3dprint

Examine the Attached.