Inspired by Kepis I looked again at choice of hearthboard for hand drill. I tried a small diameter elder drill (8-9mm) and a piece of sycamore for hearth. Got a coal first time.
This suggests to me that pretty well any wood might do for the hearthboard as long as you have an appropropriate diameter elder drill - small diameter for hard wood, larger diameter for softwood.
I'm going give a few other harder woods (and softer) a try to see how far this is a general truth.
This suggests to me that pretty well any wood might do for the hearthboard as long as you have an appropropriate diameter elder drill - small diameter for hard wood, larger diameter for softwood.
I'm going give a few other harder woods (and softer) a try to see how far this is a general truth.