My new foundry furnace progress

Since my little furnace burned up and died, I decided to go back and start working on my original one that I planned on from the start, but never actually got past basic welding and such on the thing. I got a little free time and went back to working on it again, and this is what it looks like so far. Im also building an air compressor at the same time out of an old air conditioner compressor and an old freon tank or empty propane tank, but that’s later on down the road.

Here’s some pics:

Photo0747 Photo0748 Photo0745 Photo0743 Photo0742 Photo0741 Photo0740


The foundry is made from mainly all junk we had laying around, and what I could source locally. It is far from complete, but it has a good start on it. I used clay/playsand/concrete lining that I used in my original furnace, which worked well for over 30+ melts and many many hours of running at around 2000 degrees. Due to it’s large size, Im abandoning the use of charcoal and going for waste oil burner since people around here just keeps tossing it out faster than I’d even be able to use it.  So I’d have pretty much an unlimited source of fuel for the thing forever, and with thanksgiving coming up, lots of people will be doing turkeys and such, so tons of gallons of peanut oil and such for my projects.

The old furnace lining died due to being scraped out during loading coal/charcoal into the furnace, and the coal turning into the black glass that you usually run into. You dont run into that with the waste oil burner setups, and I coated the thing in grey chimney sweep cement, rated at 3000 degrees, so it should last for a long time. I still need to get the fittings, pressure regulators, some various compression fittings for the oil and air, then hook it all up and put it all together. Also still need to find some type of blower, but not having much luck in that area, may just use an old hair dryer.

The wheels are from an old garbage tote that was supposed to have been crushed, but we stole the wheels from it since the tote was junk. The fuel tank is from a small fire extinguisher, (can you see the irony?) it is all done in 1/4 NPT brass fittings and copper tube except the fuel line, which is poly tubing. I went for poly tubing bc it’s what I had laying around from a kit that I got for the 3d printer stuff, but the tubing was the wrong sizes, but works perfect for this. Also with the poly tubing, its clear, so you can see if the fuel/oil is flowing through the stuff and into the furnace.

The atomizer setup in the thing is based off of the kwiky all fuel burner, so you can run diesel, kerrosine, engine oil, vegetable oil from resturants, old cooking oil like peanut oil and such, whatever you have laying around. The compressor will probably be used for that due to being a little cheaper to run than a commercial air conditioner, and alot quieter to be around.

The air compressor will be made from the AC freon compressor pump, empty propane tank, and various fittings, and will be very silent compared to normal air compressors. Most people used to use them for airbrushing setups, like the hobby airbrushing setups. It kinda sucks to be stuck near a very loud compressor for hours on end while airbrushing stuff, so they used to make these and it’s no louder than someone talking at loudest.

Here’s a video of the compressor unit all wired up and running:

Ill keep adding updates on things as I work on the stuff.


4 Responses to My new foundry furnace progress

  1. Karen L says:

    You never cease to amaze me. If you find yourself running out of grease/oil, we dump the oil we collect but first we put it into sour cream buckets with lids. You could keep it outside this winter, let it freeze, and then take it inside to thaw and use when needed.
    Linux crashed on me today. It started up ok but then crashed and when I went to reboot it, it gave me this message: “Could not find kernel image: linux” boot:_ and the cursor would just blink forever. Can you fix it or is there something I can do here?
    Thanks, Karen

    • cae2100 says:

      Ill defenitely take the old oil that you have, Im trying to go for old cooking oil preferably bc the oils used in cars actually smoke a small amount while the cooking oil burns cleanly.

      is it still on the thumbdrive or did you install it? it sounds like something corrupted the harddrive or the harddrive is crapping out if it was installed to the harddrive, if not, the thumbdrive might be getting corrupted or the thumbdrive is failing. Running a full OS from a thumbdrive is alot of read/write cycles on the drive, which most flash disks just arent designed to handle that.

      I keep backup images of all of the OSes that I deal with here on this computer, so I can just bring it over sometime or something.

      • Karen L says:

        It’s still on the thumb drive. Docky was giving me this message also “Docky requires compositing. Please enable.” Then it would blink and act like it was restarting. Then finally it would lock up so I would power down and restart. But the last time it just wouldn’t restart. I think XP also needs reinstalled on my laptop that I use all the time. The problem is that I need that laptop ASAP because it’s the one I do all my business on. I still prefer using the thunb drive and alternating between the two, but I may have you install Linux on another laptop I have and maybe a spare desktop just for another backup. If you want to come over here and work on them that’s fine with me. Just let me know what you want to do and we’ll make arrangements.

  2. cae2100 says:

    I can come over whenever, I cant remember the phone number for the gyro shack or I’d just call over. Also Ive been curious how that access point is working.

    Also, docky seems to say that it needs compositing on all of the computers here, when it starts up the computer, but it just goes away and you never see it again.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: