my girlfriend has a design question.
Can someone help me to remove the arcs with the red arrows so that the whole hangs together
A quick-and-dirty way, working from the low-res sketch without the arrows:
- Screenshot the image to a PNG file
- Open PNG in image editor (GIMP, whatever)
- Threshold to remove gray grid
- Bucket fill the ring and crosspiece
- Save as PNG
- Import into Lightburn
- Trace image to get vector outline (delete image)
- Set layer to Line
- Set laser cut parameters
- Profit!
The filled PNG looks like this:
Filling the interior before tracing eliminates the whole “tracing the image produces two lines” problem: the inside is black, the outside is white, and tracing produces a single path.
Then the LightBurn file looks like this:
Is that about what you wanted?
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yes thanks for answer
If you want to avoid the roundtrip to a raster image you can do this with boolean operations.
You need to 2 closed objects for boolean operations to work. In this case, the outer area and then the horizontal bar. Group the 2 outer shapes that define the outer area.
Not clear from the screenshot but I suspect in your case the horizontal bar is actually 2 individual lines. You would need to close this for it to work. So create a trapezoid making sure the 4 corners are actually joined. It may be easier to modify a rectangle to do this.
Once prepped, select the two objects, then Tools->Boolean Union.
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This is the way to do it. Lightburn 101 Learning Hobby Laser Software - YouTube
thanks for video
I’m a new user waiting for my laser to arrive and getting up to speed with Lightburn. I ran across the video and remembered it would easily answer your question.
yes it helped a lot
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