I am trying to create rounded corners on a rectangle. Each corner will be a different size. The rectangle is 4" x 4". Bottom right corner remains a 90 degree angle, the bottom left corner is 1", top left corner is 1.25", and the top right corner is 1.5". I input the radius and hit the corner. All the corners are being rounded but the size is incorrect. This is what Lightburn is giving me. (see pic) The sizes of the rounded corners are not correct. For example the 1" radius actually measures 1.75". I have tried in both inches and mm. Can someone please tell me what I am doing wrong?
Thanks in advance.
radius|375x385
You understood correctly. The error was on my part. What I wanted was the corners to match up to a 1" circle, and so on. So I thought by putting 1" in the radius tool would give me that. But in order to achieve what i was after, I needed to divide the number by 2. this is what i am after. (see Pic) The corners are not as drastic, and match perfectly to the corresponding numbered circles. Thanks for your help, I think i have it sorted now.
Lightburn modifies diameter with the value when you put a number in radius!? Someone needs to hand them a 5th grade geometry manual 
I guess we went to different schools, a RADIUS can exist without a complete circle and does not have a diameter, the size you put in below the Radius tool is the arc radius size, you can check this with the measure tool.
The radius is the length from the center of a circle or sphere to the outer edge. Diameter is the length through the center in a straight line from outside to outside. No matter how large the line segment of a given radius is, the radius is the same.
It is no problem to make a mistake in diameter and radius, as long as the program code is not sent to the laser 
Merry Christmas
While what you are saying is 100% correct, the input here is for radius and used as radius, there is no confusion between radius and diameter as diameter is not used. If you want to talk circles not arcs, set the radius to 10mm on any corner 90 degrees or less ( so the result is easier to see ), then draw a circle with a radius of 10mm and overlay that over the radius on the angle and you will see it is a perfect match.
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