Hey guys. Fairly new to all this but have been reading through the forums and lurking for a while. I'm learning things as I go and have no real wood working experience behind me so bare that in mind with my novice type questions.
So I have a piece of wood that's 3" thick and has a decent crack towards one of the edges that's roughly 13" long. Since we'll be turning this redwood slab of wood into a dinning room table I was thinking of adding some dutchman / bow tie / butterfly joints to this crack to help deter it from cracking any further and to add to the aesthetics of it. I've never done one though so i'm trying to get as much info on how to do this right the first time. (I'm hoping to do some smaller ones for practice before if i can)
Since the slab is 3" thick and the crack seems to run through the entire piece, how deep of a butterfly joint should i use? 1" or maybe 1 1/2" ?? Also how many do you think i'll need. Would one be suffice or would you recommend 2 in this case? Top AND bottom? or just would just Top be ok?
Lastly I've been watching videos on youtube and reading up on how to do the process but one thing I haven't really seen is how people are getting the bottom of their keys / holes so smooth after they've chisel'd the edges. They always fast fwd to the completed product. I assume they're using a router, but if not how are they doing it?? Also how they maintain a certain depth throughout the process if they aren't using a router? I don't have a router so I'd have to do them all by hand which is why i'm asking. (or i might just go buy a router if that's the best option)
Anyways, I'll start there and post up the pics of the crack if it helps.
Thanks for any advice / help in advance.
Almost forgot, maybe someone can clarify that this is correct. As far as when making the butterfly keys the grain should run parallel with the keys shape to add strength? If it wasn't this way it'd make for a weak joint? Is this drawing correct as far as what I should shoot for, grain wise, when setting these up?