Frosty Posted October 27, 2020 Share Posted October 27, 2020 Are we all typing at the same time? I was rereading what I'd posted and your preceding post and realized you were already doing what I was talking about. Please disregard, you seem to have a good handle on the thing. Give me a shout if you run into problems. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
WhiskeyTangoFoxtrot Posted October 27, 2020 Author Share Posted October 27, 2020 No worries Frosty that's precisely why I was asking. Wasn't sure if a "bell and vice" tune would get me close enough or if there was another workaround to get closer like trying to run it in some sort of makeshift chamber similar to planned forge size. Quote Link to comment Share on other sites More sharing options...
Frosty Posted October 28, 2020 Share Posted October 28, 2020 What is the bell on the burner for? Is it the intake like a Reil burner or as an outlet nozzle? It makes a difference. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
WhiskeyTangoFoxtrot Posted October 28, 2020 Author Share Posted October 28, 2020 Frosty I'm building a 1/2" Frosty T that I'll use to power the NARB... the bell is just to help keep the flame from blowing off in the vice (since I don't have a gas forge to tune the burner in) so what I'm trying to figure out is if that will get me close enough for the NARB or should I try to find a chunk of pipe or something similarly sized to the forge I'm planning to put it in for the initial tuning of the burner. Quote Link to comment Share on other sites More sharing options...
Buzzkill Posted October 28, 2020 Share Posted October 28, 2020 19 hours ago, WhiskeyTangoFoxtrot said: you're running 1/8" holes on your drilled IFB correct? That is correct. However, I did manage to turn the first IFB burner head into a partially vitrified mass after having it at forge welding heat for several hours. I'm still on the second one now, but I think I'm starting to see signs of degradation. If I run it at welding temps for a while and then try to go back down to forging temps it starts to burn inside the plenum in a little while. I'm not sure about the actual number of holes and I did slightly enlarge a few of them since I felt that there was too much flame lift when first lit in the forge. The short version is it's still kind of a work in progress, but I probably won't try to make any more improvements until this one fails or I have to do a major forge overhaul. Unfortunately I got a little sloppy with some flux and a portion of my forge floor will probably need refurbished in the fairly near future. Overall though, the NARBs I have made which are powered by a 1/2" Frosty T (modified) have worked out well for me in my small forge(s). I don't foresee ever going back to a single port burner at this point. The reduction in noise is enough incentive for me even if there were no other benefits - and there are. Quote Link to comment Share on other sites More sharing options...
WhiskeyTangoFoxtrot Posted October 28, 2020 Author Share Posted October 28, 2020 Buzz that's exactly why I want in the NARB club What size forge are you running yours in? Quote Link to comment Share on other sites More sharing options...
Buzzkill Posted October 28, 2020 Share Posted October 28, 2020 I can't remember the exact dimensions off the top of my head. The floor is flat and I think about 9 inches side to side in the forge chamber. I believe I have about 4.5 inches from floor to the apex of the curved shell and it's around 10 inches long. I've gotten to the point where I try to make my forges as small as I can for what I do. I make blades more than anything else, so I don't usually need a lot of extra space inside. Quote Link to comment Share on other sites More sharing options...
Jealdi Posted October 28, 2020 Share Posted October 28, 2020 Buzz, When things settle down and it's safe to do so... I'd love to visit your shop since we are pretty closely located to one another! Quote Link to comment Share on other sites More sharing options...
Buzzkill Posted October 28, 2020 Share Posted October 28, 2020 I think you're about 2.5 to 3 hours drive from me. Shoot me a PM when you think something might work out and we'll make it happen. Quote Link to comment Share on other sites More sharing options...
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