New user -What Am I Doing Wrong?

[Anonymous]

Just as the title says, I have finally jumped on the bandwagon and decided to learn how to use Fusion 360. I have spent about a week and a half using the desing and cam features. It has been very difficult for me.

I am having a few issues, I have tried to watch as many youtube videos and tutorials as I can. I primarily have been using my milling machine. I recently aquired a Takisawa CNC lathe, and am trying to design some basic turning parts.

1. I open fusion, create a new file and create a new component.

2. I chose my plane, which is still confusing for me for lathe work.

3. Next I sketch a rough shape of my part, can barely dimension it correctly LOL

4. Create a Revolve to make it a cylinder.

5. I will go ahead and save my file.

6. Jump into the cam portion and create my toolpaths.

7. I will once again save the file.

Now my issues.

If I want to make an edit to the part, I will click on MODEL and then right click and edit sketch, once I make a few changes to the sketch, for example change the depth of a grove.

 **I notice my Model disappears and I cant get it to show back up, unless I create a new model, in which I have to reapply all my chamfers and fillets to the edges? Major pain, what am I doing wrong?

** Next even if I make the smalles edit and then go back into the cam and Regenerate my toolpaths. I always get an error toolpath, and then I notice my stock setup origin has changed place and I cant get it correct?

I getting super frusterated and am ready to quit using this.

** Also last night I worked on Fusion on my macbook pro and created a part and toolpaths to prototype today. Saved the file and shut it down. Got home opened up my desktop, opened up fusion and opened that file. OF COURSE the **** thing was missing the MODEL the gray part, it opened up and my toolpaths were missing and all I saw was like a circle sketch drawing in the cam tab?????

I had to redesign the whole part!!!!

Any help, tips pointers, links etc.. would be amazing!

[HughesTooling]

I think the best thing you can do is download screencast and make a recording of what you're doing because it should not be as hard to do as you're making it. Also in the model workspace right click on the top node in the browser (the file name) and export a f3d file and upload so we can see what you're working with, export a file after you've set up the CAM and some ops. I'd guess the file you could not find when you got home had not finished uploading before you shut down, you might want to keep the data panel open and have the My Recent Data folder open so you can see if an upload is still in progress before you shut down.

Mark

[tomae]

This sounds similar to the problem I am having with a recent model and only after the most recent Fusion 360 update.  I am currently having a slight variant of the problem, my model is gone every time I open it currently.  But, I was having exactly the same problem as you at first, I would edit the sketch and the model would disappear.   I am beginning to think this is a new bug - I have never had this problem before the latest update.  See thread titled: "Where did my model go?".

In the Model workspace try going under the Modify menu and select Compute All.  This seems to fix my issue, perhaps it will help for yours....

-Tom

[jeff_strater]

Would it be possible to share your design?  We have seen some similar problems, but having another model that shows it would be helpful.  We do have a fix that is coming out soon for a similar problem, but I'd like to verify that on as many examples as possible.

Also, just for our information, if you do a Compute All (on the Modify menu), does that bring your bodies back?

Jeff Strater (Fusion development)

[HughesTooling]

@jeff_strater I have design that worked OK before the last update. When I open it now the body doesn't show, running Compute All brings it back but you have to do this before going to the CAM workspace or the setup loses it reference.  File attached.

Open file, no body

If you go to the CAM workspace before calculate all you get this. Going back to the model workspace and running Compute All then regenerating the toolpaths does seem to work though.

Mark

[jeff_strater]

Thanks a lot, @HughesTooling.

I think we do have a problem here.  The common thread seems to be using CAM, specifically turning toolpaths.  We will dig into it.

I tried a very simple case - created a simple revolve body, switch to CAM, generate a turning toolpath, back to Model, and have not yet hit upon the magic sequence.  If anyone on this thread has a good reproducible case, that would be of great help.  We think we have a fix (that is, our fix works for models that seem to have this problem), but we haven't yet proven that we found the cause.

Jeff

[tomae]

Try editing your sketch.  Things seemed fine in my case until I edited the sketch then things went south...

-Tom

[Anonymous]

@HughesTooling That's exactly what mine was doing. I have only used Fusion for turning and just started last week. I have been pulling whats left of my hair out, trying to figure out what I was doing wrong!

Basically once I desing a part, revolve it, then modify chamfers, create tool paths, Im done.

If I go back and edit sketch to make a small change, it screws everything up. The body disapears, and the tool paths fail and the origin is off and I cant fix it and have to make a whole new part.

[Anonymous]

Another question. Dont know if it's me of just the way CAD works.

I have a sketch I created. I want to turn to grooves into the profile (lathe part)

I initalially dimesnioned the sketch with a .040 deep grove, then applied a .040 chamfer. I decided to lessen the grove to .030.

I went back to edit sketch and changed the dimension to .030 - then when I went back to my model I received errors and had to re-apply new chamfers?

Is that normal? DId I receive an error due to the fact my original chamfer was .040 and now I changed the depth to .030? I thought it would generate a new chamfer automatically?

Thanks

[HughesTooling]

I'd say that's normal, you can't have a 0.4 chamfer on a grove that 0.3 deep. If you changed the chamfer first then edited the depth you wouldn't get and error.

Mark

[HughesTooling]

You could use parameters so you don't get this sort of error. The dimension in the sketch will have a parameter number, in this case d1. You can see this info if you hover the mouse pointer over a dimension.

When you add the chamfer enter d1 for the distance.

Now when you edit the groove the chamfer will update.

Mark

[Anonymous]

Awesome! 

Thank you to everyone who has taken the time to reply. Greatly appreciate the feedback and help!