40 Gal build

soccerguy83 · Post by **soccerguy83** » November 19th, 2015, 3:28 pm

Yeah I won't be throwing it away, I will most likely sell it though as I don't have space or needs for a compressor that big!

soccerguy83 · Post by **soccerguy83** » December 17th, 2015, 2:35 pm

Made a bit of progress on my planning.

http://feldoncentral.com/bbqcalculat....06,8.56,28.80

Some particulars:

Stack 3" Dia. 25.5" tall
Door 35.5"x18" (18" along the arc, gives me 1" past 12:00 and one inch below mid-line)
First grate will be at mid-line 35"x19.5"
Second grate will be 5" above first grate 35"x17"
FB will be 16"x15"x15" WxHxD
FB to CC opening will be an arc even with top of FB 14" wide by 3.37" deep that follows the same radius as the tank (might have to modify this a bit once I start getting things mocked up) (it's a tricky opening to conceptualize)

Stand will be built out of angle, most likely 2x2"

Dirtytires · Post by **Dirtytires** » December 17th, 2015, 2:59 pm

I like how you think....I never take on a project that doesn't require a new too be added to my shop.

As for cutting, many use an angle grinder for everything. Gonna cover it anyway so cutting out a round with a square hole is ok.

Post by **Rodcrafter** » December 17th, 2015, 4:14 pm

I ran these numbers through the Pit Calc on this site, and got quite a bit different numbers.
Tank = 48"x 20" = Cook Chamber Volume - 15,079.64 in³
Fire Box = 18"x18"x18" = Actual Firebox Size - 5,832.00 in³
Recommended FB size = 5,026.55 in³ Difference of -116.02%
Stack 3.5" pipe= Rec. Chimney Vol. 291.60 in³- Required Chimney Length - 30.32 in.
Rec. Throat Size = 46.66 in²

I prefer a taller FB myself. But hey we are all just trying to help.

This is our calculator, http://www.smokerbuilder.com/pitcalc/

soccerguy83 · Post by **soccerguy83** » December 17th, 2015, 5:42 pm

Odd, I ran my numbers through our calc here as well and got the same exact numbers as Feldon's. I used 40 gal not 48x20 as it has belled ends.

From your calculator, here are my same numbers as above:

Tank 40 gal = CC Vol. 9,240.00 in³
FB= 15x15x16 = Actual FB 3,600.00 in³
Recommended FB = 3,080.00 in³ difference 116.88%
Recommended Chim. vol 180.00 in³ - Stack 3" length 25.48 in.
Rec. Throat = 28.80 in²

I think the big difference here is the tank input differences for you and I.

soccerguy83 · Post by **soccerguy83** » December 17th, 2015, 5:47 pm

With the throat I have laid out it gets me to 32.89 sq in. With an arc radius of 8.95" and a width of arc 14" and a height of 3.37".

I was really hoping for a FB about the size of your dimensions but that puts me at 189.35% of rec.

Is there something I'm not looking at correctly?

Post by **Pete Mazz** » December 18th, 2015, 3:54 am

Looks bigger than 40 gallons. From the dimensions you posted it's ~60.

http://planetcalc.com/4579/

Post by **Rodcrafter** » December 18th, 2015, 7:21 am

That makes since Pete.

We are just trying to help, I would make real sure of the size before going any further.

jm2cw

soccerguy83 · Post by **soccerguy83** » December 18th, 2015, 10:22 am

Well dang, running the numbers in the calculator Pete provided I am looking at a 60 gal. Wow! I will need to confirm on the tank info plate. That would have been a hugely costly mistake!! Thanks guys!!

This forum rocks!!

Post by **Rodcrafter** » December 18th, 2015, 8:53 pm

Your welcome, glad we could help.

Making memories.

soccerguy83 · Post by **soccerguy83** » December 27th, 2015, 9:36 am

Got my angle grinder for Christmas. Now I'm thinking about welders. Does this even exist? A welder that runs off 110v, that is capable of welding 1/4" that isn't $600+?

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Post by **Rodcrafter** » December 27th, 2015, 9:51 am

I wonder why you say 110v because house hold current has 220/240 at the dryer plug and water heater and a/c so why'd you think you couldn't use 220v?

Making memories.

Dirtytires · Post by **Dirtytires** » December 27th, 2015, 1:04 pm

I am fortunate to have a shop with dedicated outlets for my welder. Before the shop however, I ran off my dryer outlet as this was closest to the garage.

I needed an extension cord so went to my local RV store and picked up a 25 foot extension cord for 30 amp service. I was moving into a new house at the time so had the dryer outlet and plug configured to the same prong designation. Also changed out the welder plug to match.

Lot of set-up, but in the end, all I had to do was unplug the dryer (with permission from my wife, of course) and I could run the welder anywhere in my garage (since the laundry room is right inside the garage).

I later discovered that the service panel was right off the garage and punched thru the wall with a dedicated 220 for my compressor, and a 220 for the welder. Not a difficult task but you might want to call a local expert for that.

220 is easy to get.....don't get a welder you will outgrow quickly by limiting to 110v.

soccerguy83 · Post by **soccerguy83** » December 28th, 2015, 11:46 am

Well turns out I guess I don't need to limit myself to 110v, as my dryer is right next to the garage, and run an extension. I might have access to a Lincoln 225ac also.

Post by **Rodcrafter** » December 28th, 2015, 3:10 pm

Now you're talking!!!!

soccerguy83 · Post by **soccerguy83** » December 28th, 2015, 4:38 pm

Rodcrafter wrote:Now you're talking!!!!

Think I could get away with the AC-225 to build this thing? Looking at thicknesses from 5/32 to 1/4 and expanded steel.

YouTube · Post by **Frank_Cox** » December 28th, 2015, 5:25 pm

should work fine

soccerguy83 · Post by **soccerguy83** » December 28th, 2015, 8:19 pm

Thanks for weighing in Frank!

I'm torn between using a AC-225 that my dad owns (which will be a struggle to get him to let me use), looking at a Lincoln Pro MIG 140 or seeing if I can find a PRO MIG 180 which is outside of my price range.

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YouTube · Post by **Frank_Cox** » December 28th, 2015, 8:34 pm

you will never regret going with a bigger machine.... even if it cost ya more.
SmokerBuilder Pit building Rule #1- asking forgiveness is better than asking for permission!

Post by **Rodcrafter** » December 28th, 2015, 9:26 pm

Yeah that!

Making memories.

soccerguy83 · Post by **soccerguy83** » December 29th, 2015, 8:11 pm

I found a pretty sweet little Hobart 140 set up with CO2 tank, helmet, gloves, wire, cart, and extras that I'm gonna go take a look at hopefully this weekend.

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Post by **Rodcrafter** » December 29th, 2015, 9:43 pm

Good luck

Making memories.

Dirtytires · Post by **Dirtytires** » December 30th, 2015, 1:06 am

You will like the shielding gas. It makes your cleanup easier as less spatter and you welds a bit nicer looking. If I am reading my specs right, I loose a little penetration vs flux wire but I don't usually get into that range anyway.

The tank and regulator can get pricy so being in a combo deal is typically a good thing.

Best of luck.

soccerguy83 · Post by **soccerguy83** » January 6th, 2016, 1:36 pm

This project will be temporarily put on hold for ~3 months. My lovely better half whom never asks for anything (yet puts up with all of my ridiculous hobbies) asked for a new bed for our room. The funds I had earmarked for a welder and steel graciously went towards our new bed without a second thought. I will keep you guys posted with the progress in the meantime with regard to updated calculations, cutting off the pump and motor bracket, cleaning the tank up, cutting the notch for the FB, and seeing what I can do about cutting out the plugs. By April or so, I should be able to move forward with the welder and steel.

Still stupid excited about this project!

Post by **Big T** » January 6th, 2016, 9:21 pm

We all have to put our projects on the back burner from time to time especially when it involves the Mrs.!

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