Smudge Pot files anyone?

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Re: Smudge Pot files anyone?

Post by adbuch »

ROKCRLER wrote: Wed Jun 08, 2022 10:24 am Here's two I made based off the shared files.
This one turned out a tad big due to all the details cut into it.
102832.jpeg
102754 (1).jpeg

This was the first one 36" tall stack.
97767.jpeg
Next ones will be a different style stack, im not too keen on the square stack.
Nice work there! Keep them coming.
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Re: Smudge Pot files anyone?

Post by tinspark »

Wondering if there is a way to shut these things off without burning all of the fuel off.
a slide gate at the base of the stack?

The ones that the farmers used back in the day had a butterfly damper in the round stack, but I think that it was used more to manage the flame than shut it off since there is still air gap around the swivel damper (just a round disc in a round stack with welded rods that stick out the stack, and a handle) , but I cant say for certain what the dampers were for..

Also, they used to be made out of light gauge galvanized and farmers would use them on freezing nights to keep oranges, and other stuff from freezing

Also Nice looking smudgepot ROKCRLER!!
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Re: Smudge Pot files anyone?

Post by ROKCRLER »

Doug...good observation.
These two in theory, you close off the fill valve/air inlet and it smothers out.
Theres another outfit (toxic fabrication on facebook) making these with great success and this is what they have implemented.
Smudge.JPG
Mine has a removable stack and i made a block off plate to fully extinguish it, but it will require either dropping it from the top or removing the stack to cover the outlet. With the stack being 12"x12", i put an 8" reduction in the top of the tank, the plate is 10" round that can "in theory" be dropped and cover the 8" hole.

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Re: Smudge Pot files anyone?

Post by Bizeeb65 »

Reviving an older thread here, but I used this file to make one of these pots (scaled down 75% of original size). Holds just over 6 gallons, and is managable to move around. Thanks for the file share!
8FB9439A-7E43-431E-87B1-B929BD0F94E6.jpeg
9ECE8C6D-C748-46EB-A38C-99BE8F44FF52.jpeg
2F338366-BD32-4F7B-B349-833027B8B2A4.jpeg
12BD046E-9AEF-40D5-97F4-463EAAB01064.jpeg

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Re: Smudge Pot files anyone?

Post by kicktillmonday »

Bizeeb65 wrote: Sat Jan 14, 2023 9:11 am Reviving an older thread here, but I used this file to make one of these pots (scaled down 75% of original size). Holds just over 6 gallons, and is managable to move around. Thanks for the file share!
Awesome! Very well done, I would like to make one of these at some point :Like
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Re: Smudge Pot files anyone?

Post by tinspark »

ROKCRLER wrote: Wed Jun 08, 2022 10:24 am Here's two I made based off the shared files.
This one turned out a tad big due to all the details cut into it.
102832.jpeg
102754 (1).jpeg

This was the first one 36" tall stack.
97767.jpeg
Next ones will be a different style stack, im not too keen on the square stack.
ROKCRLER, a few questions
-Will you go with smaller dimensions on the on the stack size with less cutouts in order to get the flame to shoot out of the stack higher?
I am guessing that there was too much draft from those multiple openings (though they look super cool)
- Also, how much fuel do you estimate it was burning per hour approximately?
- you used diesel fuel, correct?
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Re: Smudge Pot files anyone?

Post by ROKCRLER »

Well, what had happened was....
i think the files posted here have a stack of 8" i think.. mine ended up 12" sides. This one still burns good, but had to make the stack removable for transporting. The amount of cutouts wont matter too much, its the vents at the bottom that need less air.
Size wise the files posted are good.
On my next ones im going to cut one sheet and roll it to have a round stack and only a few stitches to weld instead of two corners.

The one i posted burns about a quart per hour if i remember correctly.
He was using a mixture of hydraulic/atf/oil and it didnt like the hydro fluid...oil and diesel mixture works good. 1 gal diesel to add fuel works good.
And you do need the draw tube to create pressure in the tank as the exhaust exits.

Ive been eyeballing the ones built by https://thetoxicfabrication.com/ on their designs and making adjustments on my end 8-)
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Re: Smudge Pot files anyone?

Post by SawdustandSparks »

Inspired by this thread, I drew up my own. I'll be cutting it tomorrow.

I had a couple questions though...

Is there any consideration that needs to be given to the return pipe diameter and length?
Also, does there need to be a vent to the tank? I've seen some folks venting the filler cap

PS: those lower 6 cutouts on each side of the chimney will be bent outward to form louvers
Capture1.JPG
Capture2.JPG

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Re: Smudge Pot files anyone?

Post by sonbakler »

I like your design, please post pics of it finished. I have no idea about return pipe or venting your post just caught my eye. Well done.
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Re: Smudge Pot files anyone?

Post by ROKCRLER »

SawdustandSparks wrote: Mon Jan 16, 2023 11:26 pm Inspired by this thread, I drew up my own. I'll be cutting it tomorrow.

I had a couple questions though...

Is there any consideration that needs to be given to the return pipe diameter and length?
Also, does there need to be a vent to the tank? I've seen some folks venting the filler cap

PS: those lower 6 cutouts on each side of the chimney will be bent outward to form louvers
The draw tube should in theory extend into the stack, my understanding is that as exhaust is drawn up the stack it is forced into the draw tube to feed the fuel tank.
Drawtube.jpg
You do need a vent at the tank as that is your fresh air intake.
If you look at the link i posted above for ToxicFab, you can see all the items that make them work. I reference them since they seem to be selling a crapload of these pots which tells me they have a good working design.
They also incorporated the cutoff flap at the bottom of the stack.

Your vents at the bottom would probably look better folded in instead of out. On the big one i made, they were adjusted several times to get the correct airflow.


DISCLAIMER:
I am not in anyway shape or form an expert in these things, ive only made 2 so far and the first worked better than the second as size increased on the second.

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Re: Smudge Pot files anyone?

Post by Swick73 »

I don’t add the regen pipe. The original smudge pot is a Venturi style and the tube is directly in that area, these design the Venturi effect is in the tank or the neck. I use a larger fill hole to accommodate airflow
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Re: Smudge Pot files anyone?

Post by mitchw123456 »

i started putting another dampener in the top of the tank to improve air flow and makes them burn much much hotter
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Re: Smudge Pot files anyone?

Post by Ric »

I'm looking for a small design to take camping.
I have a full sized.
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Re: Smudge Pot files anyone?

Post by adbuch »

Ric - you could possibly take one of the existing designs and scale it down. You will need to become a contributing member ($20) in order to have access to the file downloads. There may also be something you like here:

https://www.google.com/search?client=fi ... =615&dpr=1
smudge pot files.jpg

David

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Re: Smudge Pot files anyone?

Post by Fabkid33 »

Lets see the damper !
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Re: Smudge Pot files anyone?

Post by warpedredneck »

So here is a dumb question, on the top of the reservoir ( i think this one is a trapezoid), how do you calculate the angle to compensate for the rise?
I've been trying to google/search and I'm sure that I would have been taught this back in high school, but I'm not wording it correctly.
If some one could even tell me what to look up, I would greatly appreciate it.
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Re: Smudge Pot files anyone?

Post by adbuch »

warpedredneck wrote: Wed Feb 07, 2024 1:55 pm So here is a dumb question, on the top of the reservoir ( i think this one is a trapezoid), how do you calculate the angle to compensate for the rise?
I've been trying to google/search and I'm sure that I would have been taught this back in high school, but I'm not wording it correctly.
If some one could even tell me what to look up, I would greatly appreciate it.
I assume you are asking how to calculate the bend angle between the vertical sides and the transition pieces to the top opening.
Perhaps this will help.

David
smudge pot angle calculation.jpg

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Re: Smudge Pot files anyone?

Post by adbuch »

As an example, let's assume the following dimensions: TOP = 6", BASE = 14", and HEIGHT = 7".
smudge pot angle calculation 1.jpg

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Re: Smudge Pot files anyone?

Post by adbuch »

If we assume that the height of the reservoir is 5", then here is what we would need - assuming cutting 4 separate pieces and attaching/welding together. Of course there are other ways to do this - maybe cut the reservoir from a single piece and fold to make a box shape, and then do the same for the transition portion.
smudge pot angle calculation 2.jpg

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Re: Smudge Pot files anyone?

Post by warpedredneck »

Thank you, its been driving me nuts!
I just couldn't get the right search words out, I really appreciate it!
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Re: Smudge Pot files anyone?

Post by tinspark »

Not too much cnc plasma cutting work in this baby smudge pot that i am putting together. With almost zero cost.
Someone chucked an old helium tank in my neighborhood and also a basketball pole and hoop. I cut the pole off, which incidentally makes a great smoker stack 3” OD. , and will use part of it as the stack for my small smudge pot expirement. I cut the helium tank and shortened it (mainly for looks) and will put it all back together with a relief tube.
Most of the actual smudge pots that the farmers used here in my area were made of light gauge galvanized. So i am thinking this thing might just work.
About The only thing that i will burn is a shut off swing damper at the top and a small cap for the fill port. And maybe a blast gate at the bottom. And likely will add 3 legs for more stability. Will light it up out back with a fire extinguisher close by just in case.
IMG_9819.jpeg
IMG_9826.jpeg

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Re: Smudge Pot files anyone?

Post by Dirtmotor »

Nice ! Love it when someone can repurpose metal !
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Re: Smudge Pot files anyone?

Post by tinspark »

Made the stack removable. Not sure how much length it needs. So when i fire it up i can play with that easily..

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Re: Smudge Pot files anyone?

Post by adbuch »

Nice project Doug! My question is: does a smudge pot have any use other than to look at when lit? In the old days (1950's when I was a kid) they used small smudge pots to mark road construction, now days replaced with those round yellow flashing lights running on batteries. I have also seen similar larger ones used for heating citrus trees during freeze conditions. Other than that, what are they used for these days?

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Re: Smudge Pot files anyone?

Post by tinspark »

Camping, in the mountains and at the beach/lake. and back yard bbq's. They do throw off a lot of heat. I live in a semi-rural area, so I could use it without issue. No sure how much BTU's this little guy will throw out yet
Heck, if I hate it, I have basically zero cost in this one except maybe a day lost and a few consumables. It may sit in the corner to be fired up only once in a blue moon.
I am smoking a 16 lb brisket , and a few racks of baby back ribs tomorrow and it is perfect weather for something like this to snuggle up near. (this little guy wont be quiet ready yet for this though, maybe ready to fire up next week sometime) My fire pit works too, but everyone has a store bought pit. The hand made fire pits are cool because most people cant make them. Who has one of these, especially nowadays?
They are just cool!! imho ;-). Novelty piece, especially homemade. I dont think I will even clean it up or even paint it.. just keep it looking a little steam-punk-ish haha!
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