Experiencing problems with creating threads

[Anonymous]

Hello,

I hope this is the right place to post my problem since this is my first post on this board.

Since the last update I'm experiencing problems when I try to add modelled (3d) threads.

Before the update I could just "create" a thread, click "modelled" and it would automatically add the right thread.

Now it doesnt seem to recognize the right thread and if I choose it manually I receive an error saying "Fehler: Fehler beim Erstellen des Gewinde-Spiralpfads" which I think translates to "Error at creating thread path".

Anyone has an idea how to fix this? I tried different regular holes, created by creating holes and by extruding holes. Simple bodies but nothing would help. Any chance that it has to do with the update (maybe something went wrong?).

Thanks for any help

[NicolasXu]

Hi julienXPF6M,

Thanks for reaching out to us, and welcome to the community!

Sorry to hear you have experienced such trouble. I tried creating a model like the one shown in the screenshot, but was not able to reproduce it. Would you share the model with us for investigation?

You may export the design as .f3d via File->Export command.

Best Regards,

[Anonymous]

Hello and thanks NicolasXu,

I include the problematic file in the attachment.

Creating a thread in the "big" hole works perfectly fine, but adding one like shown in the picture before creates the shown error.

I received the same error when trying to design a (small) nut - maybe this can help to find the error source.

thank you for your help

[Anonymous]

In addition I found out that it seems to work fine for thread sizes m6 and greater, maybe this can help

[NicolasXu · Accepted solution]

Hi

Thanks for sharing the model with us. Unfortunately, I tried it several times, but was still not able to re-create the problem. I can add the thread to the hole successfully.

I added a screencast to show my steps. Would you have a look and see if I missed something? I suspect it might be related to the thread size specified in previous thread command. Does it make any difference if you restart Fusion 360?

If the issue persists after restarting Fusion 360, would you record a screencast (screencast.autodesk.com) which might provide more clues? 

Regarding the behavior of "it doesnt seem to recognize the right thread", it was changed couple of months ago to "remember the last used settings". I will discuss with the team and see if we should apply the last used settings for Thread command.

Best Regards,

[Anonymous]

Hello,

thank you for your help.

I restarted fusion and my computer several times while the problem was still persisting.

In your screencast you're doing exactly the same as I did which resulted in an errormessage.

Meanwhile I reinstalled fusion which seems to have fixed the problem and the threads are creating perfectly fine now.

Thank you for your help and your fast respond.

P.S: personally I like the "last dimension"-feature for threads since I tend to use the same thread several times, on the other hand the recognition-feature usually works perfectly which somehow makes the last dimension feature unnecessary

[NicolasXu]

OK, glad to hear you can continue your work. 

Feel free to post on the forum with any comments or questions you may have and we'll be glad to help.

[MRW74]

Same issue persists here; M6 threads (or bigger) can be modelled perfectly, any threads smaller than that yield the aforementioned error message.

I cleared the user cache data and / or restarted Fusion 360 umpteen times since the problem occurred for the first time, but to no avail.

Is reinstalling Fusion 360 the only one solution?

Grüße aus Denkendorf,
Marcus ;o)

[Anonymous]

Could you try to restart Fusion and add a single (!) thread to a hole?

I realized that sometimes it starts to bug if either fusion is running for a while or if I try to add multiple threads at the same time.

Grüße aus Konstanz

[MRW74]

Thanks for your quick reply!

Yep, I cleared the user data cache once again, because motion links (e.g. revolute and slider) always stop working after making changes to some unrelated components, and cleaning up the cache helps at least until the next change is made..., so Fusion 360 started anew automatically;

  but restarting Fusion (or starting it for the first time that day), picking only one single component and one single 3.3 mm bore to create a modelled M4 thread, ends up with the same error message.  :oP

Quite annoying.  :o\

PS:

The message in English reads "Error: Failed to build thread helix path"; this doesn't happen if I don't tick the "Modeled" checkbox in the "Thread" options. To me it seems like Fusion has covertly "remembered as a default" my making M6 threads in another project(!) and wouldn't accept any other thread size ever since; thus I'm prone to clear the cache every once in a while, but that doesn't do the trick here.

[NicolasXu]

The functionality of remembering last used settings should only remember the user typed/selected values in the current Fusion session. Once you restart Fusion, the default value should be used.

@MRW74, you mentioned that, “this doesn't happen if I don't tick the "Modeled" checkbox in the "Thread" options.” Would you share us the design in which a thread was saved without Modeled option? I want to take a further look at it and see where the problem is.

Thanks,

[MRW74]

Hi NicolasXu,

thanks for your reply! 🐵

I'm from Germany, thus not a native speaker; so I hope you can
understand what I'm trying to say. :o}

I didn't save any design with threads */not/***modelled, yet, but I can
reliably confirm that a thread smaller than M6 can not be visibly
modelled in any of my projects, while any arbitrary thread dimension can
be created error-free if I don't tick the "Modeled" option.

Most of the time I don't need modelled threads because my parts (made of
GFRP plates) usually end up on my desktop CNC milling machine, and it
makes things easier to just have the bores designed for a 2D export (I
didn't use the CAM workspace in Fusion 360 until now).

Occasionally I try to create modelled threads for illustration purposes,
and when the "Modeled" option fails as usual while creating threads
smaller than M6, I simply stop creating these threads and leave my
components with their bores. That's OK with me, but sometimes I'd like
to have M3 to M5 threads being visible in my designs, e.g., for to show
the parts to a friend of mine.

If you'd like to experience this phenomenon at first hand, I'd offer you
a TeamViewer session; some weeks ago, another problem, which turned out
to be caused by my local Fusion 360 cache, could be fixed only this way
with a colleague of yours, since my project / design (to which I invited
him) behaved totally normal on */his /*PC; so cleaning up my Fusion 360
cache became a "daily routine" ever since then.

// Off topic
Another issue I frequently encounter in Fusion 360 is the following:
Sometimes my designs are being corrupted while uploading them to the
cloud, so there's an error message when I try to review them in A360
online (before showing them to a friend of mine)...

I consider my internet connection robust enough (broadband cable, 200
Mbit/s down, 20 Mbit/s up), but uploads seem to get stuck unnoticed by
Fusion 360 every once in a while, and the design is then rendered
unusable in the cloud.

Sorry, the corresponding error message is presented in German; in
English it reads like "Oops! We're sorry, a problem occurred while
preparing the file for display. Please turn to the helpdesk for
support.", see "Unrecoverable exit code from extractor: -1073741831":



Thanks in advance,
Marcus

[NicolasXu]

Hi Marcus,

Thanks for the information. Your description is very clear, and I can understand the situation well.

For the thread issue, the first thing I want to confirm is whether it’s related to certain design files. I attach a file which contains both 3mm and 6mm bores, and some of the bores were applied a modeled thread.  (The screencast below shows my steps)

Could you open the file, try applying more modeled M3 threads and see if it works on your side? If it fails, it may indicate some other issues (cache, installation, etc.). It would be great if I can take a look at the problem on your PC.

Regarding to the viewing problem in A360, it sounds there is a problem when generating online views for the design. Would it be possible to share me a link of the design with download permission, so I can check where the problem could be?

Thanks,

[MRW74]

Hi Nicolas,

here's the link to my assembly that can't be opened in A360: http://a360.co/2dssAWh

This assembly is made of several linked components, which themselves contain linked components, which in turn consist of linked components... You got it.
I don't know if you can download this assembly without having all the other links to its constituent components?

Unfortunately I won't get to check out your file or give you a TeamViewer session until tomorrow afternoon;
if need be, is there a way to send you a PM with my ID and Pwd then?

[NicolasXu]

Hi Marcus,

Thanks for sharing the design. Don’t worry. I can download it and reproduce the error. I'm following up with the development team to see where the problem is.

My email address is: lixiong.xu@autodesk.com, you may either email or PM me the TeamViewer information when you're available. 

Thanks,

[mattias.luha]

I had the same problem: could only create un-modeled threads. Simply restarting Fusion (without restarting computer) worked for me.

[n.ebner]

Hi!

I also had the same problem...

A simple flat, 10mm in height, rectangular body with a sketch on the top face with points to mark the hole/thread positions. Holes with a diameter smaller than 4mm were not rendered correctly neither in 3D (modelled) nor with the thread texture.

The following procedure helped me:

I edited the extrude feature of the body, changed its height to a larger value, 30mm or so. Then I edited the hole feature, which in the newest Version of Fusion (2.0.4095) has a thread option. And in the moment the hole/thread-dialoge opened up, the thread was rendered correctly. So i just closed the dialog again, changed the heigth back to 10mm and any hole/thread added after that was ok.

Hope that helped to pinpoint the bug.

[MRW74]

Hello n.ebner,

thanks for your reply, I'll check it out after my holidays in Norway
(next week).  🐵

I installed the latest Fusion 360 update only yesterday, so the "thread
in a hole" command should be available by now, but I didn't come across
modelling - or recreating - threads since then.

// Falls Du dem Namen nach Deutsch sprichst, vielen Dank und Grüße aus
Denkendorf (Ba-Wü).  ;o)

Greetings
Marcus