This is a workflow for creating an outline that can be cut in Designer. In this example, it is meant to be able to cut out a word. See the numbers in the image for what it will look like.
1) Type in your text. Choose a font that is easy to overlap to create a continuous final word. Modifying the glyph to connect them is another topic
Copy your original text if the letters do not completely touch. Make as many copies as needed to account for each gap in the letters.
2) I removed the fill and added an outline so you can see that the "union" step later worked.
Add an underline (this is just a box shape) below the whole word, this will help you align the pieces.
In the first copy, delete the letters that are not connected to the first letter.
In the second copy, delete the first letter
3) Align the two sections of the word and overlap to create a strong junction
4) Remove the alignment box.
Go to Path menu item
Select Union (5th option) This will eliminate the overlapping pieces of the letters
5) Save as Desktop Cutting Plotter (DXF)
Hope this helps someone