I've been working for the past month or so on building myself a small forge. Basically I was looking for the minimum size and cost that would get me pounding metal. I have been reading the various JABOD threads since the summer trying to decide if it was the right thing or not, but i decided to just go for it. Built the box out of some scrap 2x6 that I had around. I cut a single huge dovetail in each corner to hold it all together.
I slaked some kitty litter and mixed in some sand, and beat that in as a floor, then started arranging bricks to make the firepot. I will admit that I got a bit confused between the different variations of the jabod, and probably didn't need to go this far, and the thing ways a ton. As I got going on this I decide that loose fill would probably be easier to manage, and I could empty it out when I need to move the thing (i've got to put it away when not in use). Anyway, after filling the thing up it looks a bit like:
Once I got here I couldn't just stop, so after a quick break to make dinner for the family I fired it up. Seems to burn pretty good:
I think I made the fire pot too deep, and too short. I think I will probably turn the whole thing around in the box, make it shallower and maybe use the two wall design rather than the viking style here. I had a pretty tough time getting metal into the coals rather than just on top of them. again I think this was my confusion due to reading many threads on JABOD forges, and just combining a few to many ideas in one place. I'm also probably just about at the edge of how small a box can be used with these; this is 12x16 inches interior, and I expect 16x16 inches might be better. I think it should be pretty effecient thought. I spent just over an hour, and only burned a few handfuls of charcoal, maybe a quart or a bit more at most.
Thanks to Charles Stevens for showing the way with these. I spent a lot of time thinking I needed the 'right' equipment like an iron forge table, and blowers and all that, and put off getting started on my own. So this seeing these was a big push forward to just get it done. The teacher I had for the fundamentals class I took also suggested using a sledge as an alternative anvil, so I scrounged one up at the tool consignment. If not for this sort of encouragement, I'd still be sitting around waiting for a way to make my tools. Instead I'll be happily bashing away in my back yard.
Here's a shot of the anvil station: