[Terrapreta] Iwasaki's DIY barrel charcoal maker

[Kurt Treutlein]

Gerald Van Koeverden wrote:
> Greg,
>
> Here's a small-scale Japanese horizontal DIY model with very extensive 
> fabrication instructions and photos:    "Iwasaki's high speed charcoal 
> maker type　IM-4SA."   
<<snipped>>

Very nice, though a little cryptic, I thought. I hope anyone 
contemplating making one of these is fully aware of the dangers of using 
welding gear of any kind on enclosed drums that have had any kind of 
oil, solvent or fuel in them. The result could easily be  a loud bang 
with bits of metal flying in all directions taking parts of the operator 
with them. I would even avoid using grinding wheels to do the cutting 
until the drum was well and truly open.

And yes, I HAVE welded  fuel drums and fuel tanks, but only using 
elaborate precautions. And washing them out was not one of them.

Kurt