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How to break circle into 2 halves with LibreCAD 2.1.3?

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rkim777

How to break circle into 2 halves with LibreCAD 2.1.3?

Hi. I have an entity, a circle, that I'd like to separate into 2 half circle entities Could someone please tell me if this can be done?

Thanks in advance.

--
Bob

LordOfBikes

Re: How to break circle into 2 halves with LibreCAD 2.1.3?

Administrator

The tool Modify -> Divide is what you need for this.

With snap on endpoints activated, the divide tool snaps at 0°, 90°, 180° and 270°.
And with snap middle activated, you can snap in the middle of each 90° segment.
Snap middle has also an option in tool option bar, where you can set the number of middle points.
With 1 middle point snap is at 45°, with 2 points it snaps on 30° and 60° etc.
Or draw an angle line with the needed angle and use snap on intersection.

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rkim777

Re: How to break circle into 2 halves with LibreCAD 2.1.3?

Thank you again, Armin. I'm used to seeing this as a command called "Break". I greatly appreciate your patience and help.

Bob

On Sat, Jun 27, 2020 at 4:36 PM LordOfBikes [via LibreCAD] <[hidden email]> wrote:

The tool Modify -> Divide is what you need for this.

With snap on endpoints activated, the divide tool snaps at 0°, 90°, 180° and 270°.
And with snap middle activated, you can snap in the middle of each 90° segment.
Snap middle has also an option in tool option bar, where you can set the number of middle points.
With 1 middle point snap is at 45°, with 2 points it snaps on 30° and 60° etc.
Or draw an angle line with the needed angle and use snap on intersection.

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Argo123

Re: How to break circle into 2 halves with LibreCAD 2.1.3?

For the hopelessly confused, can you give a simple step by step explanation on how to divide the circles in this drawing to form a slot? I got it to work once on one side, but not the other. Can't understand how to get this to work consistently. mill_stop_base.dxf
One time I got a 90 degree trim.

LordOfBikes

Re: How to break circle into 2 halves with LibreCAD 2.1.3?

Administrator

Trimming circles does not always work as expected.
In your case it is easier to divide the circles. Each one at the line ends, then you have 4 semi circles and you can simply delete the inner two.
You can try it with your drawing or use mine mill_stop_base.dxf

Armin

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