Hi All. I have a 20w D1 Pro and am using it for engraving bamboo cutting boards. I am trying to get a darker engrave without either too much power or doing it twice as thats so time consuming. I have read that you can take the module out of focus for this purpose.  Is this a) true , b) the right way to do it and if so how do i do it and what is the recommended settings …power etc ?

Many thanks.  Alan