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Post by aquaticharpy on Mar 26, 2020 19:00:33 GMT -5
Ok. I found a sheet metal supplier and I have the sheet for the flame tube. I just need to somehow bend it into a tube. Anyone who's done this before that could help explain how to get a good tube shape would be greatly appreciated.
Thanks John
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Post by racket on Mar 26, 2020 22:16:37 GMT -5
Neither of those part numbers make sense , but go for the smaller flow unit
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Post by racket on Mar 26, 2020 22:19:35 GMT -5
To bend the stainless , hold a length of pipe that around half the diameter you want the flametube to be in the vice jaws , use a rubber mallet to bend the stainless around the pipe , you may need a couple of hose clamps to hold the edges of the stainless together when welding the seam .
Drill all your wall holes first
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Post by aquaticharpy on Mar 27, 2020 0:53:30 GMT -5
I figured itd be easier to drill after I welded it.
Thanks John
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Post by racket on Mar 27, 2020 1:42:56 GMT -5
Learn your own lessons
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Post by aquaticharpy on Mar 27, 2020 10:11:46 GMT -5
How far apart should I spread each hole section and I have 10 secondary and tertiary, how many primary should I use? Also, what hole pattern should be used?
Thanks John
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Post by racket on Mar 27, 2020 17:40:55 GMT -5
As for FT holes/sizes , adjust diameters to provide 10 in each Zone ...........as advised in an earlier email .
Primary at theoretical impact point of fuel spray angle , Secondary at half length of flametube and Tertiary at >80% length .
Secondary holes at mid point between Primary holes , if Primary holes at 0, 36 , 72 degrees etc around the FT , then Secondary holes at 18, 54, 90 etc , Tertiary where ever
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Post by aquaticharpy on Mar 30, 2020 13:53:35 GMT -5
Alright. Tertiary holes are the largest, primary are second largest, and secondary holes are the smallest. I suppose it's time to start drilling
Thanks John
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Post by aquaticharpy on Mar 31, 2020 9:44:58 GMT -5
I'm going to have to put a hole right in a weld seam..Any idea how I'm gonna do that?
Thanks John
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Post by aquaticharpy on Mar 31, 2020 9:59:58 GMT -5
Everywhere but here its recommended primary holes smallest and largest in number, secondary holes mid sized and around 10 is ok, then tertiary the biggest and as many go around in a circle, and drill after bending into a tube.
What's the bonus for only 10 holes a piece and primary holes being midsized in terms of burn efficiency or power??
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Post by aquaticharpy on Mar 31, 2020 12:48:36 GMT -5
Also, just 3 lines of holes around a tube? No special pattern? Just 1 row of holes after another evenly spaced? Jetspecs recommended 6mm primary holes instead of 12.. I'll listen to you though, I'm just looking for power and longevity.
Thanks John
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Post by racket on Mar 31, 2020 16:29:33 GMT -5
John
I'm trying my hardest to make this as simple as possible for you , just follow what I've said , I've no intentions of typing up huge explanations.
A hole in a seam , is the seam alread welded ?? if so then simply drill the hole
If not then leave it until it is , then drill the hole , or perhaps better still just reorietate the holes so none align on a seam , theres only 30 holes all up .
Jetspecs doesn't recommend those hole sizes they're just used as an example, and only because Jetspecs is trying to cover all variables , whereas you intend using liquid fuel.
There is a pattern between Primary and Secondary , I've already explained that .......................you are testing my patience , carefully read my replies !!
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Post by aquaticharpy on Mar 31, 2020 23:12:49 GMT -5
Welp, I measured and marked, I'll drill holes where the little dashes in the lines are.. This'll be ok for a flame tube then? Thanks John
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Post by racket on Mar 31, 2020 23:36:09 GMT -5
Yep
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Post by aquaticharpy on Apr 1, 2020 22:45:43 GMT -5
Welp, today I drilled 30 nice little holes. Tommorrow I'll be picking up another sheet of stainless for a FT holder and rolling both at a local metal shop nearby. Hopefully everything goes well. Thanks John
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