Furnace


Any ideas on filtering, storage, delivery, and waist disposal of used
oil? Somehow, I need to keep the mess minimal. I'm thinking of making
a ceramic stand for the crucible, will that work? Or making ceramic
screens ? I need the pour clean or flaws will show up during
machining.
I built it big enough to do a large cast iron part in the future, but
will stick to aluminum for the moment.
SW
Reply to
Sunworshipper
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following are a few of those on this URL
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No connection with Lindsay except as a very satisfied customer.
-- Unka George (George McDuffee) .............................. The past is a foreign country; they do things differently there. L. P. Hartley (1895-1972), British author. The Go-Between, Prologue (1953).
Reply to
F. George McDuffee
You should be able to select a digest option that'll send 'em all in one ortwo "digests" per day . Dunno what you read email with , I use OE and have multiple inboxes set up , one for each email list I read . Makes it easy to ignore one if I'm too busy right now to read ... Can't imagine why a list wouldn't let you play .
Reply to
Snag
I've basically given up on yeh hoo groups. The other one, I filled out the request for invite and never got a response. I read a whole bunch, but learned more from videos. Rejection isn't anything new to me, the last two years of high school I lived alone and worked most of my life alone.
Need to ask around for waist veggy oil, maybe that would be easier to work with. But, that might have even more waist sludge that needs disposal. Could burn it in the fire pit, but thinking it will burn forever and hot, thus cracking the cool rocks around it.
Kinda at a stand still till I find more parts and work out the next direction. I need a junk yard type place to buy stuff from cheap. Finding just scrap steel to weld together is a task. I just keep thinking about running out of stuff to build stuff because everybody is broke and it disappears to the recycling scrap yards.
Know of a place to buy crucibles at? Always have trouble coming up with search terms for sale. Buy, sale, cost, price, store, cart,... Probably not buy one but would like to know what they cost for larger ones.
SW
Reply to
Sunworshipper
There's one forum , lemmee see ...
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that I had to email a specific dude to get activated - that may be the one you're talking about , maybe not . Lotsa good info out there .
Heh , one of my neighbors is a part-time scrapper and he often gives me first pick . He knows what I want , and I give him just a bit above the recyclers .
Check out Legend Inc. in Sparks Nevada . I make my own ... for aluminum a piece of steel pipe/tubing a couple inches smaller than the ID of your furnace with a plate welded on for a bottom works well . Length to suit your needs ... those short fat propane cylinders make a halfway decent one for about 25-30 melts . Burner erodes them if you're not careful . My current ones include one of 11ga 4" square tube , 4" dia steel tube (short one) and a couple of small slip-cast ceramics for brass.
Reply to
Snag
Good folks, and a great source of information on casting. They unfortunately have to use that method to keep spamers out. A simply paragraph describing why you are interested in casting is all it takes. Must not be very exclusive since they let me in:-O
Reply to
William Bagwell
Well , and me too ! I found them when I was looking for info on slip casting crucibles . Ended up kinda flying by the seat of my pants on that one , but the two I made have been thru a couple of heat cycles each and haven't cracked... And one's melted brass twice !
Reply to
Snag
Yeap, that one, I even emailed Lionel to ask a question with no answer. That's the one I read a lot from, ye hoo is hidden.
Is temperature really a big issue? If so how is it observed?
I've got one of those also, but he has nothing ferrous at the moment. I picked up some stuff at the place I found the metal wheels. BTW, I wouldn't have got away with burning the solid rubber off the wheels in the city. Plus foundry work is illegal in NV. thus one of the many reasons to move. Only bad thing is loosing the zero state tax stuff. Should have INC.ed back when I lived there, but never could figure out which is best C or S corporation. Still don't know after 3 attorneys and the secretary of state BS.
Funny, I use to blow through that town every time I went swimming , mine hunting, and cliff diving below the dam. Their site has a mistake in BTW, 300 oz. won't fit in a 4.5" crucible, maybe drop a zero.
I have an almost prefect steel pipe with a welded on dome cap, but when I cut it off the pipe that became my gantry crane it is about 2" short of this project. Bummer, can't always see that far in the future with a chop saw in hand.
SW
Reply to
Sunworshipper
A lot of guys give it a couple or three minutes superheat after total melt - and I used to . Then I managed to find a thermocouple that will work with my digital multimeter . With a downloaded chart I can get a lot closer to the temp I want . I think this has given me better repeatability in my pours. Remote reading IR thermometers don't work ... or so it been said . I haven't tried one .
Reply to
Snag

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