Corner Radius Issues with New 2.2.02

LightBurn Software Questions
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Radius Question
Radius Question492×443 4.04 KB

I have created this ‘Item’ using 2 ‘Polygons’, One Rotated by 30’ and then used ’ Boolean Assistant ’ to get this Shape … I have JUST Downloaded the ‘Latest Version’ … ???
All that I want to do is to Radius the Corners, External and Internal ones …
I have tried Everything that I can think of ??? Looked on the www and can’t find a Simple answer … “Shape Properties” doen’t come up with any ‘Radius’ Options as per the Net Search
I find the ‘CAD’ functions to be Super Frustrating and Not ‘Intuitive’ … :frowning: :frowning: :frowning:
Looking forward to hearing back from Someone that knows a Lot more than myself … :slight_smile: :slight_smile: :wink:
Best to ALL from ChCh, NZ

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Hi @KiwiKeith

Shape Properties has only ever offered corner radius on basic shapes like rectangles and polygons before they’re converted or combined. Once you Boolean them, the result is just a path made of straight segments, so the radius option disappears. That’s expected behaviour, not something that changed in 2.0+.

To round corners after a Boolean, you’ll need to use Offset Shapes with “Round” corners, or switch to Node Edit and convert sharp corners into arcs.

You mentioned this happening right after updating — did you see a tutorial or screenshot that made it seem like the option used to be available on Boolean shapes? That will help us understand what led to the impression it changed.

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Can you Radius the corners before you Boolean.

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The Radius tool should do that:

I have that toolbar along the left edge of the LightBurn window, so it’s near the bottom on my screen.

Depending on how you generated the figure, it may be a group, so you must ungroup it before rounding the corners:

Keep in mind that LightBurn is not a CAD program and does not pretend to be one. If you think of it as a laser-specific CAM package with some drawing functions, you’ll do your blood pressure a big favor. :grin:

Searching the doc for various keywords often turns up the tool / function / operation your CAD-trained fingers cannot find:

Some folks with deep muscle memory find it easier to:

  • Design using The Best CAD Package Ever™
  • Export the geometry as a DXF file
  • Import it into LightBurn
  • Do the CAM thing: set the Line and Fill layers as needed
  • Fire The Laser
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I created the polygon, using 6-sided with a second one rotated 30 degrees. Then I made a second copy of both.

First one, used the Boolean Assistant to merge them into the 12-pointed figure. Then I applied the Radius Tool to 4-5 corners to demonstrate that this works.

Second one, I used the Trim Shapes (Scissors) Tool to remove line segments as needed, leaving the same design. Then I applied the Radius Tool to 4-5 corners to demonstrate that this works, again.

In neither case did I need to Ungroup the two hexagons to radius the corners.

HINT: When using the Radius Tool, make sure the corner node being targeted is in the middle of the Radius Tool pointer circle. Took me a while to realize that. :flushed:

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Thanks, I Got it to work , Such Great input from ALL, Much appreciated… Cheers from ChCh, NZ

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Thanks for your Reply … Thanks, I Got it to work , Such Great input from ALL, Much appreciated… Cheers from ChCh, NZ

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Thanks for your Input … And YES, I do agree that the ‘Primary Function’ is NOT to be a CAD Program … :slight_smile: :slight_smile: :slight_smile:
I am 74 years old already and Over Many, Many years I have taught myself AutoCAD and use an OLD ’ LT ’ Version for most of my ‘Hobby Stuff’ … The ‘Drop-Downs’ and Functions are Super Intuitive and easy to work around … Hense the Frustration … :slight_smile: :slight_smile: :slight_smile:
There is Yet Another Super Frustrating bit of ‘Grammar / Termininology’ that I find wrong … In the " SHAPES " ‘Dropdown’ … The word ’ Polygon ’ is Incorrect … " POLY " meaning " MANY "… IF that Term is to be used, then there should be a Prompt for " How Many Sides " … The Shape shown is a " HEXAGON " … :slight_smile: :slight_smile: :slight_smile:
While I am busy with the ‘SHAPES’ … There should be ‘CIRCLE’ … AND an ‘ELLIPSE’ … ‘CIRCLE’ will ‘AutoLock’ Both Axis, where ‘ELLIPSE’ should be ‘Varied’ … Yes I know that one can ‘LOCK’ the Axis additional ‘Key-Strokes’ … Why … :slight_smile: :slight_smile: :slight_smile:
LIGHTBURN as a ‘Controller’ is Brilliant ( I am from a CNC Machining Background ) … I have Now resorted to ‘Drawing’ more Complicated ‘Shapes’ with ’ The Other CAD Program and then Importing it back as a dxf … Frustration Elininated … :slight_smile: :slight_smile: :slight_smile:
Best to ALL from ChCh, NZ Look froward to your Comments on the " POLYGON " :slight_smile: :slight_smile: :slight_smile:
List of polygons - Wikipedia

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That’s in the Shape Properties for that polygon:

image
image207×156 2.03 KB

Reviewing the Shapes doc will orient you in the New Land:

You draw an ellipse directly from the Shapes menu. If you want a circle, hold down the Shift key to lock both axes. Use the Numeric Edits toolbar to get a specific diameter or lengths along each axis.

Look at it this way: right now you’re in Year One with LightBurn.

There’s plenty of learning ahead!

Running through the First Project will introduce the tools and reduce your frustration:

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