Help requested in making a charcoal* fuel 'factory'. Save shows the idea to 'grow' blocks of wood using VINE and NEUT.

  *charcoal is to be represented by BCOL

Will cheat and turn the SAWD into BCOL using CONV, but since this is a reversal of NEUT reaction with BCOL within the game I think it's okay.
 

A line of pistons could be used to make wood 'slices', where (as the save suggests) BRMT smashes it into SAWD, although my preference is that each chunk of wood should be broken into sawdust as a whole.