xTool D1 Pro Laser Focus

My laser beam is NOT as sharp as it should be (I think). Can anyone help me out with this situation.

Use a ramp test or try focusing at various distances to confirm/optimize focus. You could attempt focus at -2, -1, 0, +1, +2 mm distances where 0 is your default focal distance. Confirm that the 0 mark is indeed the thinnest line.

Use the lowest power required to make a mark and burn to a flat uniform surface.

Before doing so, make sure your lens is actually properly clean. Use IPA to clean if required.

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