[Loughla]

Tape or glue sandpaper to a piece of glass for a really flat surface. It works nicely for making consistent angles.

Source: holy shit can you get a knife sharp using this method.

[bornfreddy]

Wow, never heard of this method, thank you! What kind of sandpaper do you use?

[Loughla]

Any brand. It's the grit progression that's important. Watch Paul Sellers for tips: https://youtube.com/watch?v=bailuQUh2mY&pp=0gcJCfwAo7VqN5tD

[bornfreddy]

Thank you!