Problem with the swarf function.

[Anonymous]

I have a problem with the swarf function. I select the edges in the correct order, but unfortunately the toolpath only generates to half the edges. 

anyone have a similar problem?

[paolo.bastianelli]

Hi @Anonymous ,

Without a project to look at, it's a bit hard to guess what could be causing this.

It would help if you could attach your f3d file to the thread (or send it to me at paolo.bastianelli@autodesk.com) .

To do so, go to file -> export -> .f3d. This way I'll be able to better assess what's causing this problem.

Cheers,
Paolo

[Anonymous]

Ofcourse, thank you very much.

[Anonymous]

Here is the file.

Tetraedr 

[paolo.bastianelli]

Perfect, thanks a lot for this. I'll take a look at your project and get back to you as soon as possible. 🙂

Cheers,
Paolo

[paolo.bastianelli · Accepted solution]

Hi @Anonymous , 

I am assuming your objective here was to machine all 3 edges with a single Swarf toolpath. 

I had a play around with your project (and asked a colleague to do the same) and I coudn't find a solution where all 3 edges are machined separately, but in the same toolpath. The best I could get was the toolpath in the image below, where there is still one corner where the tool rolls over and touches the corner surface, rather than leading out and linking to the next pass.

Obviously this isn't the best possible solution, so I'd say you are left with the 3 options below:

1) Create 3 individual Swarf toolpaths for the 3 edges.

2) Create a Swarf toolpath and use a circular pattern to repeat it 3 times in total, as per image below:

3) Forget about Swarf and create 2D contour toolpaths with specified Tool Orientations. Based on some feedback we received, there's some instances where Swarf could cause, in cases similar to this one, the machine motion to be quite jagged. 2D Contour will generally give you a nicer surface finish.

Now, I'm aware none of the above are an exact match for what you were after, but we still have some work to do to fine-tune our 5-axis toolpaths. 

I hope this helps.
Paolo

[Anonymous]

Thank you very much for your help! 

[Anonymous]

The second option looks very interesting, this is probably what I am looking for. Unfortunately i don't know how to create a circular pattern, could you describe it step by step? 

[paolo.bastianelli · Accepted solution]

Of course. Once you created a toolpath for one of the faces, go to Setup -> New Pattern. This will automatically take the active toolpath as the reference, so make sure your active toolpath is the one you created for one of the faces.

You'll have to then fill in the values as per image below (for this specific case). 

I'm basically telling Fusion to create a Circular pattern, using the axis of that cylinder as the pattern rotational axis too. I then selected 3 as the number of instances of the same toolpath. I want them to be equidistant from each other and ordered by tool number (this bit is completely up to you).

The image below shows what you should be seeing on the Browser after going through this process.

Let me know if you need any further help or clarification 🙂

Cheers,
Paolo

[Anonymous]

You are my personal hero in a battle against my ignorance? (I don't know whether this is a good word ;)) in Fusion 360.

I have next question. 

I want to cut the product as shown in the picture. Unfortunately, the tool at the end of the spiral movement, when withdrawing from the material sinks into it by a small amount. Is there a way out in a straight line, in a spiral made to avoid collision with the material?

[paolo.bastianelli · Accepted solution]

Hi @Anonymous , 

I'm glad I can help 🙂 

Would something like this work for you?  If it does, I can send you the values I used to get it. 

In general terms, you need to play around with the values in the "Linking" tab of your toolpath.

I would start by unticking the "Same as Lead-In" checkbox. This will allow you to have more control over the Lead-out (i.e. exit) moves of your toolpath. 

Let me know if this helps and if you need me to send you the values I used to generate the lead-out pictured above.

Cheers,
Paolo

[segaart]

Hello There, I found a new problem with swarf function after the upgrade, which cost me damaged spindle and milling cutter 😕   Can you look at what the problem is? I am sending a project file where the g-code was generated before the upgrade and is correct and after the upgrade that has the machine coordinates changed. I'm sending toolpath screenshots from the control software, g-code and *.f3d.  Thanx!

[paolo.bastianelli]

Hi @segaart , 

As your problem is not related to the original thread, not to create confusion I would recommend starting another thread. We'll be able to help you then.

Thanks,
Paolo

[segaart]

Ok, done!

Regards!

[Anonymous]

Hi Paolo, maybe you will be able to advise something in this topic?

https://forums.autodesk.com/t5/fusion-360-manufacture/problem-with-circular-pattern/m-p/9210063#M732...