zxcvbob
08-04-2012, 10:48 PM
Lee 20-4 bottom pour furnace, that is. "Drip-o-Matic" is term of endearment, not scorn. :)
I tried casting some wadcutters today and cannot adjust the flow rate. The lead either dribbles out or it POURS out, and I can't get anything in between. The spout was slowly getting clogged up and I drained it and cleaned it last month. But I've used it since then (with the same alloy) without any problems. The temperature was a little high, but I lowered it to 675* and that didn't help. I drained half the lead out to lower the head pressure and that didn't help either.
I have an idea what the problem is and wanna bounce it off you guys: I think I need to empty it again and grind the valve rod to a point, so it acts like a needle valve. When I had it out last time, it was kind of shaped like a RNFP boolit.
I tried casting some wadcutters today and cannot adjust the flow rate. The lead either dribbles out or it POURS out, and I can't get anything in between. The spout was slowly getting clogged up and I drained it and cleaned it last month. But I've used it since then (with the same alloy) without any problems. The temperature was a little high, but I lowered it to 675* and that didn't help. I drained half the lead out to lower the head pressure and that didn't help either.
I have an idea what the problem is and wanna bounce it off you guys: I think I need to empty it again and grind the valve rod to a point, so it acts like a needle valve. When I had it out last time, it was kind of shaped like a RNFP boolit.