You can sharpen masonry drill bits to get a drill that will put a hole in most steels, I did this with up to 3/4" drills to drill steel I beams....
Yesterday I cast a tin lead solder disc six times before I had a defect free casting I could machine without flaws.
Like Tobho is planning, I made my crucible gripper so the handles are close enough to grip with one hand wrapped around both handles. This makes...
A spinning disc or spinning cup burner were used on US navy ships and for apartment building central heating around the 1920's or so. I'd played...
I think Luckygen on Youtube just squirts a stream of oil at the far wall after it's preheated and glowing hot, he even has a wire poker inside the...
Thanks for the tour, very informative.
I had similar issues with the top ring sealing on the bore cylinder and grouted it with clay I use to patch the furnace. I also used to sieve the...
That would be a idea, especially if flames are leaking there
That hot spot is like a full 90 degrees around from the burner. That third photo had my sleepy morning brain fooled by the illusion, if that's all...
The crucible is just a cheapo crucible, it's made with lumps of recycled fired clay mixed in that contribute to cracking. The lack of a glaze...
For the limited green sand castings I've made in iron, 10% western bentonite, 2% sea coal, there's a black hard sand crust on the casting that...
You could cast it the way you describe, cover the trigger hole, add some draft to the inner trigger guard and add a few wire pins to the sand in...
You could green sand cast it with a three piece mould: it that piece was attached to a flat plate via the two screw holes and then filled over...
That looks pretty good, even if the ring cracks it'll still be retained in place. At this rate you'll be using yours before I get my furnace...
It's nice to have a ball valve downstream of the regulator to quickly shut off the furnace for skimming purposes etc., there should be enough...
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