Fusion 360 won't create modelled threads of some sizes

[dkorchagin]

What I noticed is when you try to model a thread using thread tool it fails to generate its helix path when you choose any size less than 6mm, and with 6mm and above it can only succeed with certain designation (for example it works fine with 6x1.0 but fails to generate 6x0.8). Is this a limitation or a bug?

[dkorchagin]

Yes, I am on admin account. Checked through all the permissions - all fine. Waiting for the next time it happens to send you the diagnostic logs.

[dkorchagin]

@paul.clauss, as I posted my "let's wait" it happened next minute.

Attaching the diagnostic log file, the flow of creating the thread should be very last.

I also checked permissions on files - all remain intact.

[dkorchagin]

And one more interesting observation. This time after I cleared cached user data it wouldn't restore, however, when I restarted Fusion 360 manually (closed, and then opened it), it started to work normally. I want to test if it will start to work if I simply restart Fusion 360 without clearing the chached data. I think I did it before but can't tell for sure. Will update you as I complete this test.

[paul.clauss]

Hi @dkorchagin

Thanks for the response and attaching the logs! I would like to check just one more thing - does the threading issue occur in a new Windows user account? Even though the permissions are showing correctly, it seems like this could be an issue with corruption in the Windows user profile - please let me know if you see the behavior occur after creating one.

I appreciate your patience as we investigate this behavior - thank you again for all your input!

[dkorchagin]

This is an account I created a while ago. Shall I try a new one, or what do you mean?

[paul.clauss]

Hi @dkorchagin

To clarify - there are two things to check here.

1. Does this issue occur if you log into Fusion 360 on a different computer?
2. Does this issue occur if you create a new Windows user profile on your current system?

Please let me know if you have any questions!

[dkorchagin]

@paul.clauss, I will definitelly check these two.

Meanwhile, I worked as normal and the issue occurred. This time I simply saved my work, closed Fusion 360 and then opened it. The issue has gone without reinstalling or doing anything else like clearing cache! Not sure if it's a good news or not but for me it's definitely something better as I apparently won't need to clear cache or reinstall it every time it fails.

I hope it might suggest you something - will try with a different user on the same machine, and will try to find another machine to test with the same user there.

[paul.clauss]

Hi @dkorchagin

Thanks for posting! All of this suggests that something is effecting the threaddata folder on your system, but it is hard to say what exactly. Testing the new Windows user profile will see if if is a Windows profile corruption issue, and seeing if it occurs on a different system will confirm if it is related to your Fusion account or the local system. Once we check these factors, I will log a ticket with our development team as I have been unable to determine why this issue keeps coming back - this information will help them identify the root cause of this problem and work out a fix. I appreciate you performing all this testing on your end!

[dkorchagin]

@paul.clauss, I bump into this problem once in a while and I cannot tell what exactly causes it in terms of what I am doing with F360. Whatever account I use won't make any difference. I haven't have a chance to test on a different machine though.

It happens at arbitrary moments in time, irregardless of my actions. One day it might occur immediately as I turned F360 one and started making threads. On another day, like today, I could make a few threads in a row fine, then change some series of them and it might simply stop working properly on the next one. I don't think it's related with anything like files corruption (because they remain in a working condition after restart), and I believe it's not related with access rights or anything (for the same reason).

Just a thought, might it be it's something like concurrent access to the files, or other condition causing files to be locked in a way that they cannot be read by F360. Can it be F360 locks them that way. Can antivirus interfer with it (I am on Avast BTW). Is it files at all - not sure.

It consistently restores after restart of F360 though, so it's not a very big deal now. Is it just me or other users reported anything similar?

Anywise, thanks for you help. I will post here when I know more about the case.

[Anonymous]

Hi

I found this thread searching for my own thread issue (that's confusing).

My problem is not the same, but it seems related. I'm following along Titans of CNC Academy CAD/CAM tutorials but had a hard time creating the requested threads as I didn't get the option to create ANSI Unified Screw threads of sizes under an inch except for one size at 0.118 if I recall correctly. After a bit of monkeying around, looking at the thread definition spreadsheet and confirming that the thread I wanted was in there I tried a simple restart of Fusion(after reading this thread), and lo and behold thread creation was a breeze after that. Seems there are some "ghosts in the machine" regarding threads. I am also on Windows by the way, but Windows 10 pro.

[paul.clauss]

Hi @dkorchagin

Thanks for reaching out! It is certainly strange that this issue still occurs sporadically - we appreciate you bringing this problem to our attention. These issues can be hard to chase down - unfortunately I have not seen other reports of the behavior that you have described and believe it may be unique to your machine.

Anti-virus and firewall softwares can certainly block Fusion from normal operations - I would be interested to see if this behavior continues to occur if you disable the Avast software. I don't think that Fusion would be locking the XML files used to generate the threads, so this problem is likely due to another application or the OS interfering with Fusion.

We appreciate your input and patience with this behavior! Please keep me posted with what you see on your end and we will go from there.

@Anonymous - thank you for bringing this problem to our attention! We'll keep looking into this problem - please reach out with any information you can share if you experience this behavior again.

[dkorchagin]

@Anonymous, thanks for sharing. Now I know I'm not alone 🙂

In fact, what you describe looks pretty similar to what I experience. The only difference is standard: you use ANSI vs ISO on my end but otherwise it looks pretty much like same issue.

[Anonymous]

Hi again

I just experienced this issue again, I collected the diagnostics log after restarting Fusion, sorry if that is a big mess of unrelated stuff seems Fusion updated at the same time. Hope this helps with tracking down the issue!

[paul.clauss]

Hi @Anonymous, @dkorchagin

Thanks for the update! To continue investigating this problem, I've logged a ticket (internal reference FUS-38295) with our development team. I'll keep this thread updated with any new information I have to share about this behavior - please let me know if you have any questions. We appreciate your input!

[dkorchagin]

Hi @paul.clauss,

Thanks for following up on this. I also see another "interesting" issue, which to fix I need not only to restart F360 but the whole OS - it's about motion links. They suddenly stop to work but after rebooting the PC it restores. Not sure if these two are related (I am discussing it in a separate thread), so just for your awareness.

[dkorchagin]

@paul.clauss, I have one more observation: as soon as I switched from "SCULPT" mode to "MODEL" mode, i.e. from "do not capture design history" to "capture design history" the problem with threads seems gone. So it's something to do with SCULPT mode only, perhaps?

[paul.clauss]

Hi @dkorchagin

Thanks for the update - Sculpt mode temporarily enters the Direct Modeling Mode in Fusion, so this is very valuable input. I'll pass this along to development in the ticket we logged earlier. We appreciate you reaching out and your patience as this problem is investigated.

[Anonymous]

Sculpt mode has not been involved in my case, and I've hit this quite some times after my first encounter. But now I have a plan for dealing with it, so not quite as frustrating as the first time around.

[dkorchagin]

@paul.clauss, I must correct myself that as @Anonymous mentioned, sculpt mode has probably nothing to do with the issue, as I was not touching sculpt mode for a while and the issue just started to happen often (every day) since last Tuesday (I think) after some longer time of stable work.

I haven't done anything to my system, except Windows has automatically updated itself around these days.

Restart of the Fusion still fixes the issue.

This effectively is erasing my previous "findings" and returns me to where I was in the beginning, sorry for confusion I might have caused to you..

[reiner]

I had the same issue now twiche on my System (Windows 10 64bit) and could also resolve it temporarily by clearing the local user cache. One thing I noticed was that I was not offered the thread size (M2,5) that closest matched my hole diameter (2,5mm). The selection list only showed 0,25mm, 1mm, 2mm, 3mm, etc. - not sure if that helps in any way though...