Updated to 2.1.0 - Shapes not closed

LightBurn Software Questions
1

In the new version 38 shapes were detected not closed.
When i select “continue”, those shapes are missing in the preview
When i select “show me”, i cannot find any way to close those shapes
When i try to close those shape, the functionaly is greyed.

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image957×359 46.8 KB

In the previous version 2.0.05 it was not the case. I have verified that all my shapes are closed and the job is ok.

In advance thank you for your help.

2

I believe the reason for this is explained in a pre-launch thread, but I can’t find it.

3

If you’re comfortable sharing the file here we can take a closer look. If not, please send it to us at Support@LightBurnSoftware.com.

4

Hi Tyler
The file is sent to Support@LightBurnSoftware.com

5

Generally speaking, once you have selected ‘show me’, turning on Node Edit will show you the start and end points of the shapes, and you can drag the two together to join the shape. They may be overlapping very closely, but should still appear dark green, not bright green like a closed shape.

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image391×524 4.3 KB

6

I’m having the same issue. I’ve edited the nodes on the object and the object is closed. Sample file attached.

Coaster.lbrn2 (243.4 KB)

7

You can Ungroup the C09 shapes, Brake Apart the shapes, Delete Duplicates, Auto-Join selected shapes and Group.

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image1516×1101 20.6 KB

8

I think the code for computing the path is both faster and more efficient at finding duplicates.

9

Sorry, it’s still too early and my head isn’t fully processing the information yet. :grin:

Could you explain your observation in more detail so I can understand? :innocent:

10

I was unaware of those details. Now it’s a little easier to interpret what we see. :+1:

11

This appears to be a genuine bug. I’m working on a fix now.

12

Ok, this is a real bug, and has now been fixed, but it’s triggered by the artwork being kind of sloppy.

In the middle of the last ‘A’ in ‘SPEAKEASY’, zoom in here:

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image798×1158 29.9 KB

… and you’ll see this:

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image571×1088 14.7 KB

Those 4 points are all less than 0.01mm apart, so they’re contributing nothing visually, and if we left them in, the laser would actually stop there because that’s several 90 degree changes in a row.

LightBurn automatically removes them before sending the shapes to the laser, but there was a bug in the code that did it. If the line removed happened to include the very first node in your shape (the bright green one), the result would end up an open shape.

This is now fixed, but if you manually delete the useless nodes and reconnect the shape, so it looks like this, it will work for you right now:

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image601×865 11.1 KB

13

Thanks. The line came from image to vector conversion. I wouldn’t have minded fixing the problem, but the error described a shape not closed and I couldn’t find an opening.

14

Was that created with LightBurn’s internal trace?

15

No. I think I used Adobe Illustrator.

16

Thank you, it is working fine using the new update.