More a general woodworking question than a CNC one:

How To Finishing
1

How can I remove these splinters in the depth of a groove? Was cut with upcut 1/4 inch bit, 7mm wide grove.

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IMG_20250621_150911036
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IMG_20250621_150918450
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Folded sand paper removed a lot, but did not go further. I thought of key files? Would be something to test my patience what I do not have a lot on stock.

Anything better?

2

Files and patience are pretty much it.

Next time you cut such a design you could slightly overcut each size to reduce this sort of thing.

3

TY!:grinning: (20 characters)