Out of bounds error - how do I get around this please?

LightBurn Software Questions
1

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I’m machine a piece of wood and I want the bit to start outside and cut in.
I want to mill around the outer edge but I can’t figure out how to tell the software what I want to do. I love Millmage but this is stopping me.

I’m new to CNC’ing but not to manufacturing. I have a block of wood that I want to round off the edges and then cut in from the outside. MM is great for signs or anything that keeps the bit inside but I’m totally stumped.

The only thing I can think of is to lie to it and make the “bed” 1 inch bigger.
I tried turning off Enable ‘Out of Bounds’ Warning in the device settings but that did no good.

It won’t let me preview it either.

2

Are you setting the operations correctly?

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This is an outside Profile ops applied to a stock with the same size of the machine.
test_190256.mage (6.0 KB)

3

Oh ok, I see that works but if I want to cut more off say side to side the bit needs to go past the end of the work like this:

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See? The bit needs to go past the work at least half the amount of the thickness of the bit or it leaves curved wood.
.

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Now i understand why some YouTuber’s set the dimensions to the CNC surface and cut from there. Yes, it’s wrong but it works.

4

In your settings, make sure “Ignore out-of-bounds shapes if possible” is disabled.

5

Oh ok, I see that works but if I want to cut more off say side to side the bit needs to go past the end of the work like this:

image
image516×721 3.48 KB

See? The bit needs to go past the work at least half the amount of the thickness of the bit or it leaves curved wood.
.

image
image763×557 124 KB

Now i understand why some YouTuber’s set the dimensions to the CNC’s full surface and cut from there. Yes, it’s wrong but it works.

6

That works! Thanks.
I knew there was a way. :grinning_face:

1 Like
7

With Ignore OOB you still need to extend your shapes outside of bounds (at least half the amount of the diameter of the bit) to get a path that cut straight at the corners.

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1 Like
8

Yes and it came out perfectly. I’m really liking this program.

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Here’s the result, at least the software part.

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I’ll round off that 1/4 inch at the bottom. My bit won’t reach down that far.

Time to get a new bit :laughing:

1 Like
9

Thank you, I did see that.

1 Like