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About Teachagmech

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    Central California
  • Interests
    Welding, fabricating, fishing, hunting, and raising my kids of course

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  1. Alright. I put together my stacked brick forge. Mounted the burners, cut two new mig tips to half the diameter of the tee for an air gap and fired it off. It's actually not too bad. Depending on if I have both ends open or not it will occasionally fall out of tune where the flame goes out and the gas is ignighted my the other burner. It's pretty hard to get a picture of that though so I put a video on youtube
  2. I'll take some pics today when I get to work. We're on a pretty tight budget, so I don't have the kaowool and castable or the IR reflective coating to finish my "good" forge yet. I bought some hard bricks yesterday to make a little bench too cubby forge to make some stuff to hopefully sell at a craft fair coming up next month. I know they won't be as efficient, and the burners likely won't act te same as in the 20lb propane cylinder forge, but I'm just hoping to get a hang on how they're supposed to work. Buzzkill made a good point that I was overlooking: back pressure from the forge. I'll get an update and post back later today
  3. Anywhere from 4-25. Nothing would stabilize unless I choked it. Choked it was very stable through the whole range, but it lacked "fury" if that means anything. I currently have 1" with 3/4" chase on them. I picked up the 3/4 on my way home. I won't get back to it until tomorrow.
  4. I'm going to drag up this dead thread to seek advice on my build. I am making 2 3/4" T burners. I built them directly off the plans, using tweco .035 mig tips. The only difference between what I have and the directions is the 1/8mipX1/4 flare adapters that were available were 90* elbows. I used a milling machine to drill the holes in the tees. Indicated a piece of pipe to center, threaded the tee on, drilled, and tapped before moving anything. The jets point directly down the middle of the burner tube. I forged out merchant couplers(thread protectors) to mimic the rough 1:12 taper for the flare nozzles. The problem I'm having is getting the flame to sustain off the end of the nozzle. I have to choke one side completly off and almost 20% of the other side to get it to stabilize. It seems like the gas orifice needs to be further into the burner tube. I tried trimming it down (in vain) thinking it needed more space to mix and more air. I trimmed it all the way down to about 3/8" from the face of the brass fitting. after fiddling with that for quite some time(including trying .030 and .045 mig tips since I had them) I finally pulled the gas apparatus out of the burner, pulled the tee off the end and held it in place in the burner tube while a few assistants helped with lighting and manning the gas valve. I was able to get a much bluer, louder flame. I'm at a loss. I bought some 3/4" tees hoping to get the mig too closer into the burner tube, but I'm not sure if they will work. I know YouTube is not a reliable source of info, but my flames do. It resemble those of other t burners I've seen. My flames look green. If I add more air(or choke less) the flames go out. Thanks!
  5. what did you make the stand out of? sure looks pretty! I'm in the market for a new anvil for work
  6. Well I called the port today to try to play the teacher card. I'd really like to bring forge work back to the high school shop. From my house, it 30 min to the yard in the port. I doubt they'd miss even 200lbs in a 55gal drum.
  7. I know there used to be a coal seam about 50 miles from here, but it's all since been shut down by green do-gooders from San Francisco and Los Angeles. 30 years ago it'd be easy to get. And if liberating a few pounds off a railcar wasn't a felony I'd have a ton by now. There's a siding across the street from me that frequently overnights coal trains headed for the ports. Too bad they don't sell to the public.
  8. It seems like as soon as the fire fleas stop biting the charcoals gone. Around here my worry is set in the countryside on fire. The $25 a bag for Coalsounds like it's hard to be worth it too. Heck buy it from Centaur Forge for $50 a bag doesn't sound that bad for what I paid for the charcoal
  9. Alright, so it works! but man does it ever make a friggin mess! The ash fireflies are a real b&*[#! And they don't feel really good when they fall on your arms end of the hour I've decided I definitely need to cut the firepot down. It's way too deep. I can only get to about 5-6" of material in the heart of the fire. I really wish I had a bag of coal or coke to use. I went through 20lbs of charcoal in about 90 minutes. I also want to put a smaller fan on it. The blower is WAY too much air. As I thought.
  10. I've tried. I saw the thread, checked it out. No dice here. They can't even order it. Which kinda pizzed me off a bit since TSC is literally 12 miles from my house. Loomis is a solid 2 hours. Maybe I'll get a friend who's going to Colorado for deer season this year pick me up a couple 4-5 bags on his way home. I'm not super happy with my forge table right now. My last band saw blade bit the dust at work the other day, so building a real table isn't in the cards this school year. I've got it tacked to a makeshift repurposed table thing I pulled from the scrap bin. It's pretty bad and a tad short, but it'll work for now until I figure out how to swing a hammer. Well give 'er 'ell in the mornin tho
  11. I picked myself up a 20lb bag of mesquite lump charcoal for $12 today. I found a place to buy coal and coke for $25/50lb bag. It's about as good as I can find. If I ever get up by Loomis, CA I'll stop in and get a bag. I think the consumption of coal/coke would be less than that of charcoal and it's the same price. I also like that coal doesn't send off fireflies like charcoal does. Any my input would be helpful. If i like th charcoal and there's not much benefit to coal over charcoal, then I'll build a retort and make my own.
  12. I've used the oxy fuel method a lot at school, but it's a pricy heat source to say the least.
  13. That's why I host my pics on photobucket. I've had too many things lost to "updates". I'd like to try a smaller version-- say a 1/4 barrel size maybe
  14. Me too! As I'm finding here in central California coal is nearly impossible to come by unless I want to pay extortionous amounts from centaur forge for a bag of coal. I think I'm going to keep the pot deep and use lump charcoal Sounds like some neat stuff to work with but I'm likely a long way from using any of it. I'm thinking of a table something close to this maybe without the lip? I'm not sure yet