Non Standard Threads

[Anonymous]

The threads contained within Fusion are quite comprehensive, however obviously can't cover all possibilites. I would like to see an option where non-standard threads can be correctly modelled from within Fusiion by selecting the thread specifications. For example I currently have a Schaublin Swiss thread which is 19.70 mm 45/5 butress thread at 1.667 mm pitch (no I'm not making this up!). Unremarkably it doesn't feature prominently in thread lists, however there are other examples where it would also be desirable to be able to modify standard threads as required.

[GeekFieldGuide]

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Adding my vote for this, in particular for 3D printing needs.

[Anonymous]

One more vote. Need it for fine threaded screws, like M52x1 and similars.

[batcrave]

And yet another vote. I'm trying to model an old milling machine spindle assembly that uses standard profile threads in non-standard dimensions, like a 2 1/2" x 26tpi and what looks like a 3  13/64" x 24tpi.

They're not standard, they may not be sensible, and they're certainly not what I'd have chosen, but they're what's in use on the part, and I'm not really in the mood to throw a big iron spindle casting on the lathe to re-thread it just to make it conform to Fusion's closed-minded and chauvinistic view of what a thread should or shouldn't be allowed to look like. 

Threads' rights! Down with threadism! We're here/We're an unconventional pitch-to-diameter ratio/Get used to it!

(erm, sorry... I think that may have gone off the rails somewhere along the line)

[Anonymous]

Hello, I came upon this forum discussion because I too am a Fusion 360 user who really needs to make nonstandard threads. It cannot denied that thread capabilities in fusion right now are nice, but they really aren't complete or to-order. The threads we have available are an abridged selection of most major types. But even among the major types not all the varieties are available. What we have is basically cookie-cutter stick-on options, it does not allow right now for anything that is "new," or "purpose designed" or "purpose built." 

For example, I can easily use DIN A and B threads, but DIN E threads (DIN 40400) Edison threads, are not available. That is what I need, the full spectrum of DIN E (Edison) threads.

I don't really need a "vanilla" triangular thread. I sometimes have needed triangular threads which are non-equilateral, with wonky angles. Some of the first people in this discussion mentioned needing unique trapezoidal threads having trapezoids of certain angles. These are threads that are not commonly in use anymore, with unique pitches and thread-per-inch attributes.

I sometimes even need to design asymmetrical threads. 

I think what we need added to Fusion 360 to fully address this functionality opportunity is to set up the system this way:

Create an interface where the user sketches a 2D profile representation of the threads in question and the valley between them, then turn that 2D profile into a 3D extrusion propagated as a spiral down the cylindrical object in question. Threads per inch and pitch would also be adjustable. Let us draw well-defined and precise sketches of the threads and valleys, then turn that into a modeled thread body/join feature all the way down and around the object we want to thread. It could even work on non-cylindrical objects. It would simply be a spiraled extrusion of a 2D sketch that we users made, applied horizontally to a cylindrical or other surface. It could even be for the cosmetics of designs. This is not a hard thing to incorporate into the Fusion program at all. With this method, ANY screw and thread imaginable would be available to us using Fusion.

[batcrave]

After reading @Anonymous's post I was looking into Edison threads, and bumped into yet another use case - one that might be more likely in the DIY/maker/hobbiest end of the userbase - and that's trying to design anything to interface with the ubiquitous plastic soda bottle threads, which have a rounded mold-friendly profile not unlike the Edison.

See: https://www.bevtech.org/assets/Threadspecs/Thread_features.pdf

They also use periodic cross-profile grooves (apparently those are "pressure vents" - I just learned something new!) which probably wouldn't be covered by a draw-and-wrap system like Tyler suggests, but they don't look substantially different from the grooves on a tap, and in both cases they could probably be added in a separate operation (manually, if necessary).

And, just for fun, here's something else I ran into tonight:

...which also seems to be similar to the mechanism used for Spiralock locking threads. Tyler's proposal would work for these, too.

[MetalDawg]

Fusion Team, 

Please stop working on making the UI look pretty, and let's start getting some real world functionality here.  Custom threads would be a great start. This has been a long requested feature along with function driven curves, and making the parameters table more user friendly.

Suggestion, stop giving away Fusion 360 for free to hobbyists. Charge them and take that money and hire some more programers, and let's make this a first rate program.

Thank You

[Anonymous]

 I’m a start up and hobbyist user.  Taking out away is a terrible idea. Autodesk is already a successful company, it’s not as if they don’t have the resources that they need to add new features such sketched-and-wrapped as custom threads.  They just need to decide that it’s important and that people want it. Luckily lots of us want that feature.  

The thread options we have now are not comprehensive, and is just not enough for what we need.  Sketched and wrapped threats would allow everyone to accomplish literally anything they want.

[Anonymous]

How is the common Garden hose thread NOT standard...? It is on EVERY SINGLE HOUSE in the US...? How much more standard can you get? 

[M&GToolWorks]

In the past I have always modeled my own threads, or just not bothered to model them at all due to Fusion's limited capability, but I was really surprised today to find that I cannot PICK what pitch ACME thread I want? The part diameter is 1.125, so my ONLY option is the standard 5 pitch? 

I am not a computer programmer, so I cannot understand the work it takes to make something like this possible. 

However, I frequently work with equipment and parts that were designed for a SPECIFIC task, and were engineered for THAT TASK. Standards rarely apply. 

To allow me to select a 10 pitch seems like a simple ask? 

[Anonymous]

One more for the custom thread ballot>
In 3D printing it's often required to make minor size adjustments to compensate for printer tolerances.
The currently available threads do not take this into consideration, making them useless for real world applications.
We really need an option to specify custom thread sizes.