Since recent update I cannot create a toolpath

[t.velraeds]

Until today we always created toolpaths for our 5mm mill, making 5.2mm holes. This always worked fine but since today this no longer works. I’m on version Fusion360 2.0.15022, my colleague is still on version 2.0.14xxx and he does not have this issue.

In my screenshot you can see I have selected holes which are 5.2mm in diameter and I want to mill these using a 5mm mill. I did some tests to see which holes it accepts, and it only starts creating a toolpath for holes of 6mm diameter.

Any idea what recently changed causing this issue?

[jhackney1972]

You did not supply your model so made a quick one with 5.2mm holes and a 5.0mm end mill, I had no issues with Fusion 360 Version 2.0.15022 (latest)  Model is attached.

[HughesTooling]

@jhackney1972  You've turned off all leads and ramp, would be interesting to see what @t.velraeds has used on the linking tab. I have heard reports of defaults being reset occasionally by updates so that might be the problem.

[marcin.j.warmuz]

I have the same issue.

It seems that ever since the update, a tool that is close to the hole size will not ramp anymore. I tried with two different projects I have saved and ran before. They are both milling a slot using a 2D Contour with Ramp enabled. One is a .355" slot using 21/64" (.328) end mill and the other one is a .276" slot using a 1/4" (.250) end mill. They both fail to regenerate despite having worked previously. If I change to smaller tool size for both it generates without an issue. However it is not a solution since the slots are deep and cannot be made with smaller diameter end mills.

[marcin.j.warmuz]

I just tried creating a quick model with the same .355" slot and using 21/64" end mill and it will still not work while ramping. When ramping is off, it does generate a contour toolpath, however as soon as I turn ramping on, it fails to generate with "No passes to link" message.

Now as it happens I need to change the orientation of the part I'm making and I am not able to regenerate the toolpaths. While I understand that bugs do happen in any software, inability to revert to a previous release of Fusion 360 makes me stuck with the NC program as it is. After Fusion 360 being offline for hours couple of weeks ago, we started looking at our installations of MasterCAM. Between that, and show stopping bugs such as this (as we had several happen this year) we are starting to regret subscribing to another year of Fusion. 

It's fine for a hobbyist or a small garage shop to be stuck with these sort of issues but not for a company with multiple employees that must keep running, deliver the products and not waste time trying to find solutions.

[marcin.j.warmuz]

John, in the project you created you don't have the ramping turned on. As soon as you do, it fails to generate again. It works only you change tool to a diameter that is not so close to the diameter of the hole.

Marcin

[marcin.j.warmuz]

TEMPORARY SOLUTION

In "Passes" tab, if you change the compensation type to anything other than "In Computer" the toolpath will generate.

[HughesTooling]

Bore seems to work as a workaround as well.

[marcin.j.warmuz]

Only if your shapes are circular, unfortunately I cannot use it for slots.

[seth.madore]

@marcin.j.warmuz do you have an older Fusion file that has toolpaths that DO work until they are regenerated? If so, could you Protect those toolpaths (right click on them, select "Protect") and then share that file here?

This certainly sounds like a bug and I'd like to get it logged for investigation

-EDIT-

Actually, it looks like a bug has already been logged for this, and it appears to be related to a support case you created; CAM-41491

[marcin.j.warmuz]

Sure thing, here it is.

I deleted all the extra models, OPs and toolpaths that were not affected. I left only the one that is causing the issue. Hope that helps.

Marcin

[t.velraeds · Accepted solution]

Thanks for the replies and sorry for my late reply. Yesterday we contacted autodesk support and after some teamviewing they managed to reproduce the issue and are you the discuss it with development.

For now they gave us two workarrounds:

1. Using the bore option as already mentioned in there

2. Setting an entry point on one of the holes, this also allows the toolpath to be created.

[slaughlin79]

Not sure how old this is bc no time stamp is shown on my page but I give it an AMEN brother! It’s 2/14/2023 and been having the same type issues for over a month with no fix in sight. I depend on this to put food on the table and now I’m having to learn new cad and cam. Not the easiest thing to do when all you know is fusion 360. Very irritating but they don’t care as long as their pockets keep getting lined with the green.

[seth.madore]

@slaughlin79 if you have a file that is giving you problems, please share it here and detail what you're running into.

If you can't share the file publicly, you can send me a DM with a link to the file and we can discuss the issues on backchannels 🙂

File > Export > Save to local folder, return to thread and attach the .f3d file(s) in your reply