Adobe acrobat file prints in sections instead of one piece

I created a design in Fushion 360 and exported a pdf drawing of the design. I was able to import the pdf vector file into Lightburn and it worked ok except for a few lines that didn’t seem to show up.

My current issue is that when trying to cut the outline of a shape, the software seems to break it up into segments and make all 3 passes in each segment before going to the next line segment. Some of the segments are as short as one line and others are 7 or 8 line segments. Not sure what about the original model created that. The cuts seem to work ok despite this but a few parts sag as the last line is cut and does not get cut all the way through.

Is there any way for to force the software to recognize that the entire shape should be treated as one continuous line and to cut the entire shape before going onto the next cut (3 in all)?

I tried to explore the commands to see if they had any effect. Seems like the imported line is treated differently than one drawn in the software.

There are likely breaks between segments in the shape that you expect to be closed. Can you share the .lbrn file? Can take a closer look.

I looked closely at the file but could not see any breaks. I have seen that in other pdf files I have imported.
I uploaded the file. In trying to copy it yesterday, I was able to create a version that cut the way I wanted, but now I can’t repeat the process to get the same result. If I could figure out what I did i could copy each piece to create a correct version.
Problem part for upload to forum.lbrn2 (11.2 KB)

The shape is made up of 8 separate line segments. Although aligned, they are not actually joined. It’s not enough that the pieces visually touch. They must be semantically joined in the program.

You can quickly identify open shapes by going to Edit->Select open shapes.

You can remedy this by selecting all component line segments of the shape (or by using select open shapes) and then doing Edit->Auto-Join selected shapes. This will join the ends of the segments together.

Once that is done you should be able to select the entire shape with a single mouse click. Similarly it should show as 1 object at the information at the bottom of the screen.

Incidentally, you may have better luck exporting from Fusion 360 as an SVG with the Shaper Utilities add-on.

Take a look at this instructables:
Export an SVG File in Fusion 360 : 5 Steps (with Pictures) - Instructables

Thank you. Your explanation and corrective process is very helpful. I will also try the different export process as I am comfortable with Fushion 360 and creating items to scale.

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