Curious Fusion manufacturing issue

I am playing around trying to wrap my mind around double sided models and I have run into an odd situation that I have not been able to figure out. I wonder if somebody with a fusion setup might look at my file?

double sided tests v3.txt (1.8 MB)

The file extension needs to be changed to “. f3z”

The problem shows up in manufacture in the first setup, the second operation. It is a contour operation. When simulating, the tool cuts the first two passes and that is reflected in the model. The third and fourth pass are also executed but the model does not show that the stock is actually removed.

In the design work space, the last step is to add some random stock to the outside of the model. When I remove this extra stock, the contour operation works (and reflects the removed material) just fine and for the life of me I can’t figure out what is happening.

It is probably something very simple that I am doing that I don’t understand but as I said, I can’t figure it out.

I don’t think I’m seeing what you’re seeing. The profile operation removes material on all 4 passes when I simulate.

I just tried it again - there are 4 passes in the contour operation. The tool goes through all 4 passes and visibly removes material on pass one and two. It shows two blue lines for the tool paths. It does not show the blue tool paths for pass 3 and 4 as they are covered by the material that has not been removed. Looking at the ‘info’ section in the simulation, I can see the tool is proceeding at the correct height on all 4 passes so it ‘should’ remove material on all 4 passes but only does so on pass one and two.

Very strange … I wonder what I could have possibly screwed up. As a bit of background, I lost the content of the ‘my recent data’ folder and tech support talked me through removing the entire fusion setup and reinstalling everything to fix the issue. I can only guess that something got screwed up in the process but that doesn’t explain why, when I change the design slightly, the profiling operation works just fine.

I went ahead and removed a small section of the material that causes the operation to screw up - I can now see all 4 tool paths in the simulation in the removed section but the section that actually should be removed still only shows material removed on the first two passes. The rest of the material is greyed out. Here is a screen shot.

I think you’re just looking at the model. Fusion won’t cut your actual design model. You have it cutting to the bottom of your design, but that cut is not modeled. Turn off the visibility of the model, so you only see the simulated stock.

Typically, just make your design look like the end result…I think you’ve been overcomplicating things in Fusion quite a bit. If you want to cut a rectangle, design a rectangle and then set your toolpaths to cut that rectangle. Why are you designing this and then cutting a rectangle?

You are exactly correct! I had model opacity set at maximum. I can only assume that the re-install changed this back to default since I had never encountered this before.
Again, I VERY much appreciate your help !!!

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@NeilFerreri, I started out with the rectangle and that is what I usually do. In real life though, I might have a scrap/left-over piece of material. I was trying to wrap my brain around double sided machining so I figured I draw something up that resembles real life. I then ran across the issue that started all this and I first removed the outside in the design and found that the contour passes ran perfectly fine so I tried a bunch of different things and also tried reducing the height of that bit around the outside. I actually messed around with it for quite a while before I threw my hands up in the air and asked for help :slight_smile:
I now believe that I can’t do what I wanted to do and am working on an alternate work flow. I have not yet gotten to the stage of actually making chips.
I am trying to avoid fixturing pins for the double sided machining operations instead I am hoping to just use my dog hole pins which is what I use for my single sided machining operations.