Why is the node editing tool so finicky?

I tried the “horizontal line test” but the vertical seemed to
be connected.

So, I put a rectangle over the vertical line. Changed it to
a path, and proceeded tho eliminate the vertical line, and
rectangle using the node tool’s trim and delete functions.

I do not understand the individual node shapes or colors
very well.

Bill M

Reading is hard, I know how to. But I need adderall to
be proficient

Bill, please do not take my comment as any kind of criticism. My son is mechanically brilliant, but has the same type of frustration applying written text to real world motions. Nothing wrong with that at all - just a different approach seems to work better for him.
I built and flew R/C aircraft for over 35 years, so the TE and LE terms are right in my wheelhouse.

Check my understanding. In this picture I have placed a blue rectangle over the part that I think you want to have removed.
image

The nodes cannot be a three way intesection. To delete the part under the blue rectangle we need to INSERT some nodes before we trim the line…

…continued in a few minutes

None Taken.

That is the wrong picture. I just uploaded a group of pictures.

Thank you all for your help.

Bill M,

Here I have moved the end of the TE bed away from the vertical line to make visual clarity.

I inserted a new node where the two lines are to meet.

I Broke the line at the middle node (created an end and a start node) - moved the top node out of the way to see it better.

I shortened the lower piece… now with the node selected and bright red, I will press D to delete that node.
image

image

After deleting the lower part, I moved the upper line and the TE notch back together. I selected both and clicked on the node editor button again.

Edit - when I selected the top line and the TE notch line and then pressed the Node Edit button, they auto joined into one object.

That makes sense

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This airplane is a free flight, and it has some unique problems with structure and
airfoils.

Bill M.

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The logic built into LightBurn is both brilliant and simple - but it can be difficult to understand the “how to” and the “why” at first. I completely understand the confusion and frustration. Let us help you work out the issues before they become problems.

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Ok, I see you added some pictures of a different spot on the foil. I will just do a picture walk through using the same steps. If there is any thing you want more explanation on, just say so:

Insert nodes on the vertical line where it meets the V notch. Drag those to the side to see them better. Select the nodes (they turn bright red) and press B to break the vertical line. Now you can select and delete the middle section. Move the vertical segments back to meet up with the V notch ends.

image

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I understand. You changed the line into individual segments.
Deleted the problem area, and reassembled. Right?

Thank You.

Bill M.

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EXACTLY! Man, you made is sound so simple :smiley:
I also edited the second example post with some better explanation. I don’t always remember to use my outside voice… the inside my head voice is so loud that I think everyone can hear it too.

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