The Shop > Wood & Stuff
Banjo Build
awemawson:
PM me your address and I'll send you some off cuts
S. Heslop:
--- Quote from: awemawson on June 10, 2015, 05:04:27 PM ---PM me your address and I'll send you some off cuts
--- End quote ---
That'd be fantastic, thanks.
Did a bit more looking for file stuff and found this video where a guy dunks it into a bucket of vermiculite.
I think I remember Wilkinsons stocking bags of the stuff. I don't really have enough wood ashes to fill a bucket. I'm still not wholly convinced on the idea but I suppose it's worth a go.
vtsteam:
--- Quote from: S. Heslop on June 10, 2015, 04:57:55 PM ---I remembered reading about people putting them in buckets of sand, etc. But being fairly thin I imagine they'd lose alot of their heat to the sand as soon as they're put in.
So when you say wood ashes do you mean hot wood ashes? I've got alot of wood scraps that I still need to get rid of. Also should they be glowing before putting them in the wood ashes/ fire or will the wood fire be enough to heat them up?
--- End quote ---
Simon, the wood ashes are just plain (cold) leftovers from any wood fire. They are very light in weight (unlike sand) and highly insulative (unlike sand). We use wood heat here so they are plentiful. I've annealed many times using them, and it is traditional. They are also useful for slow cooling cast iron after brazing or welding to prevent cracking.
Yes you can also use a wood fire for heat to anneal, but you must have a good pile of red hot embers for that (ie. a strong mature fire and strong draft). it is the embers (charcoal actually) that have the high enough temperature. Wood fire flames are relatively cool and won't work. I have used the wood stove to anneal a piece, then plunged it into the ash bucket -- quite handy in winter since they are all normally in one place and indoors.
See my pipe and bolt engine process early on in that Mod-up here on the forum, where I annealed a hard cast iron pipe cap for the crankcase in the wood stove and cooled in wood ashes -- and the result.
Wood ashes can also be mixed with water to make a refractory for lining a forge -- saw that done once on a video, but haven't tried it.
vtsteam:
Speaking of rebar, I just started laying out the cistern base today. Rebar is availabe at practically any lumberyard here, Home Depots, etc. Cost is currently about $5 per 10 foot length of #4 (1/2" dia.). Bought 30 lengths yesteday.
Never tried hardening it for tools....
awemawson:
Simon,
A couple of bars are all wrapped up and being collected by MyHermes on Friday - should be enough to make four chisels
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