pnut

Check patent applications. They usually have a diagram. Pnut

The bulge makes peening the head easier. Pnut

I think you are going to be getting anthracite coal. It's going to be tough to keep lit with a hand cranked blower. Anthracite likes constant air. More air when you're heating up stock and a little bit of air to keep it going when you're at the anvil. If it's anthracite you're going to be getting you may want to think about charcoal or find a place you can get bituminous coal. Pnut

You could use an old dresser drawer or pretty much anything that will hold dirt to make a jabod. Mine is made out of a night stand a hotel was getting rid of. Screw together a box out of wood. It's easier to drill. Pnut

If it's steel you can cut it with a cold chisel or drill a bunch of little holes around a circle you draw on the sink with a marker and knock or chisel it the rest of the way off. Pnut

I think the ceramic blanket only needs to be two inches thick. Two one inch layers. I don't think more really improves performance. Pnut 3.75 lbs. of Kast o lite 30 will cover one square foot at a depth of 1/2 inch. I didn't check your math but here is one more data point just to make sure your calculations are correct. Good luck. Pnut

I can't take credit for that. I heard it or read it somewhere. I think I may have read it here , but I'm not totally sure. pnut

I worked at Van Melle. I made Air Heads candy. I think they were bought out by another company since I worked there. Pnut

I think filling it with clay rich soil and making a side blast would be the simplest option. I have a jabod and I'm happy with it. It does everything I need it to do. I thought about using a sink myself. Pnut

Iforgeiron sells forge supplies. Pm Glenn Pnut

Have you read the 55 forge thread or the jabod threads? You could adapt a sink to either design. Pnut

My motto is... if it ain't broke, I'll fix it till it is. Pnut

I meant on the table while you are welding. The smaller the pieces the quicker they burn up. I always try to have more fuel ready to go in the fire than I think I'll need if I'm trying to weld whether the fuel is wood, anthracite,corn etc. If I'm going to try to forge weld I like to have everything prepared so I have a better chance of getting it done on the first go round. Pnut

When I get my jabod up to burning steel uh... I mean welding heat it goes through fuel pretty fast. Make sure you have enough to hand. One other thing that I like about a jabod is I haven't found a fuel that isn't fairly easy to adapt it to. Pnut

Well, that would be one smurfy smithy Pnut

Mine has about an inch below the center of the tuyere and about 3 1/2in above the top of the tue pipe. I have a red brick on either side of the trench to contain the fuel also. It'll get to welding heat. After I started breaking the charcoal into pieces about an inch to an inch and a half it made a big difference. Pnut

Here,here Thomas. Well said. Unfortunately it's ok in a lot of folks books to do just that and pawn off their mistakes on others for as much money as possible. Their reasoning usually is ," I'm just trying to recoup as much of my investment as possible." , but I agree Thomas mistakes should have consequences. My granny used to tell me," The world would be a better place if being stupid wasn't so cheap." Pnut

I was looking online and noticed that the the axle washers for AG discs would make a good way to connect the air supply. You just need to weld a couple pieces of round stock across it like Glenn shows in the 55 forge thread. I also found another supplier that has about any size AG disc and axle washer you'd need. The site is called smalink. Just Google AG disc smalink and it should take you right to it. Good luck and let us know what you end up doing and how it works. Pnut

Chris, have you tried plain beeswax or floor wax without the turps or BLO? Pnut

We need agreed upon terms to communicate in what is equal to basically text messaging.. I've seen many threads where the op generically uses a term or terms to encompass a series of procedures, tools, whatever. The more I learn the easier it gets to figure out what they really mean. Heat treat is one that comes to mind, when they meant tempering. Agreed upon terms make it easier to understand, especially if you don't have a lot of experience with blacksmithing nevermind the added delights of a scratch and dent brain. Pnut

No worries. I couldn't tell. In the pic It looks like It's sitting on the bottom brick. It looks good to go. I love my jabod. It does everything I want it to do. It has some size limitations but I don't do anything large anyway. Keep us posted. Pnut

I have one question. Is the tuyere sitting on the bottom of the firepot? If it is you might want to move it up about an inch above the bottom so ash or clinker if you use coal has somewhere to collect. It'll also raise the hot spot a little. Pnut

Or just specialize in using horseshoe nails as stock. Pnut

My forge likes charcoal that's about an inch or inch and a half. It burns up a little quicker but it gets hotter and the sweet spot is a little bigger with the charcoal at this size. Also try disconnecting the shop vac from the pipe and just aim it at it. Aim it more directly at the pipe for more blast, less directly at the pipe for less blast. Pnut

I'm not sure. I'd have to look it up so I'll take Randy's word for it. The outer race in particular is what I was talking about. It looks like a pretty good sized piece of steel. Pnut