Our Gravity Feed Smoker design and build.

Also called Stump's Clone.
Post Reply
Dargo
SmokerBuilder Addict
SmokerBuilder Addict
Posts: 172
Joined: April 6th, 2018, 3:37 pm

Our Gravity Feed Smoker design and build.

Post by Dargo » July 6th, 2020, 9:17 pm

I included elements of many builds and some commercial brands into this design. I picked what I liked or thought would add something.

Examples are a drip tray that I will put a pan under to capture the grease and fire bricks in the firebox. Some design choices were made by my buddy who is a machine designer and used Solidworks for the model. He made the charcoal chute removable because he wanted access to the firebox for any corrective maintenance needed in the future, while I like that idea I hope the seal works good. So this is really a design done between us.

Image

Cut view:
Image

With the door hidden so you can see i side with the drip tray:
Image

Comments and discussion welcome. Though the design and drawings are with the shop and all materials bought. So no big changes can be made now.

Needless to say, the gravity feed smoker has been my dream smoker for a while. Finally it will be a reality.


Sent from my iPhone using Tapatalk
Last edited by Dargo on July 6th, 2020, 9:17 pm, edited 1 time in total.



User avatar
Dirtytires
Expert
Expert
Posts: 3129
Joined: November 24th, 2015, 12:36 am
Title: It ain't broke...yet
BBQ Comp Team Name: Dont compete...cook for events once in a while
Location: Phoenix, Az

Re: Our Gravity Feed Smoker design and build.

Post by Dirtytires » July 6th, 2020, 10:51 pm

Nice design. I’m interested to see how the remote firebox works out. Definitely leaves a bit more room in the main chamber. Keep us posted.



User avatar
mp4
Expert
Expert
Posts: 1234
Joined: September 2nd, 2014, 6:28 pm
Title: Independent Thinker
BBQ Comp Team Name: Just a few backyard for fun competitions.
Location: Central Wisconsin

Re: Our Gravity Feed Smoker design and build.

Post by mp4 » July 7th, 2020, 12:58 pm

Looks cool!

A couple thoughts...
1) consider swinging your cook chamber door opposite of how it is shown so it doesn't hit your valve.
2) consider skipping the ball valve and design it for a temp controller with a fan. I ran mine with the ball valve only for a while. It's ok if you keep a close eye on it (I suck at that) but if the temp drops recovery time can slow down your cook or shorten it up if the temp climbs too high. I recently removed the ball valve so the fan didn't hang out so far.
Image



Dargo
SmokerBuilder Addict
SmokerBuilder Addict
Posts: 172
Joined: April 6th, 2018, 3:37 pm

Our Gravity Feed Smoker design and build.

Post by Dargo » July 7th, 2020, 8:24 pm

Dirtytires wrote:Nice design. I’m interested to see how the remote firebox works out. Definitely leaves a bit more room in the main chamber. Keep us posted.
My grill grates are 19”x21”, so the chamber is not much bigger. It could have been, but I did not want the smoker to be to big for my space.


Sent from my iPhone using Tapatalk
Last edited by Dargo on July 7th, 2020, 8:24 pm, edited 1 time in total.



Dargo
SmokerBuilder Addict
SmokerBuilder Addict
Posts: 172
Joined: April 6th, 2018, 3:37 pm

Re: Our Gravity Feed Smoker design and build.

Post by Dargo » July 7th, 2020, 8:33 pm

mp4 wrote:Looks cool!

A couple thoughts...
1) consider swinging your cook chamber door opposite of how it is shown so it doesn't hit your valve.
2) consider skipping the ball valve and design it for a temp controller with a fan. I ran mine with the ball valve only for a while. It's ok if you keep a close eye on it (I suck at that) but if the temp drops recovery time can slow down your cook or shorten it up if the temp climbs too high. I recently removed the ball valve so the fan didn't hang out so far.
Image
I know eventually I will get a temp controller and fan setup, but one of the things I like right now is tending the fire. The stick burner requires more baby sitting and I enjoy it.

So I gather your gravity fed did fluctuate temp some with the ball valve. I would believe it would do better than my stick burner.


Sent from my iPhone using Tapatalk



User avatar
mp4
Expert
Expert
Posts: 1234
Joined: September 2nd, 2014, 6:28 pm
Title: Independent Thinker
BBQ Comp Team Name: Just a few backyard for fun competitions.
Location: Central Wisconsin

Re: Our Gravity Feed Smoker design and build.

Post by mp4 » July 8th, 2020, 2:58 pm


Dargo wrote:
mp4 wrote: So I gather your gravity fed did fluctuate temp some with the ball valve. I would believe it would do better than my stick burner.
It didn't fluctuate so much as it just reacted slowly, so dialing it it wasn't a quick ordeal. Then factor in lump charcoal that doesn't always burn consistently so you have to mess with it some more.

Speaking of charcoal, make sure your grate allows the ash to drop through and give it a tap from time to time to keep your fire burning clean.

Overall, it's a great design and will make awesome food, I think you'll really like it.





tinspark
Expert
Expert
Posts: 376
Joined: February 20th, 2020, 3:08 pm
Title: Re-Member
Location: CRAZY-CALIF.

Re: Our Gravity Feed Smoker design and build.

Post by tinspark » July 10th, 2020, 1:34 am

Will be watching this one with eager anticipation. Please be sure to post plenty of pics. Interesting build.
Also Curious if the uninsulated coal chute above the fire bricks will pose any heat loss issues, and if not why is there so much insulation in all of the other GF builds out there. If there is no difference then there is a lot of wasted time and material in all of the other GF's out there. No disrespect intended on adding or not adding, But if it is not needed, and works fine, then what a savings! please keep the posts coming!!


Regards,
tinspark's the name buildin' "n" smokin's the game
Current build-GF:https://smokerbuilder.com/forums/viewto ... 30#p114730
last build- Santa Maria Smoker:
https://smokerbuilder.com/forums/viewto ... 04#p113904

Dargo
SmokerBuilder Addict
SmokerBuilder Addict
Posts: 172
Joined: April 6th, 2018, 3:37 pm

Re: Our Gravity Feed Smoker design and build.

Post by Dargo » July 10th, 2020, 10:11 am

tinspark wrote:Will be watching this one with eager anticipation. Please be sure to post plenty of pics. Interesting build.
Also Curious if the uninsulated coal chute above the fire bricks will pose any heat loss issues, and if not why is there so much insulation in all of the other GF builds out there. If there is no difference then there is a lot of wasted time and material in all of the other GF's out there. No disrespect intended on adding or not adding, But if it is not needed, and works fine, then what a savings! please keep the posts coming!!
I am anticipating some extra heatloss vs the fully insulated ones. I am actually hoping I can get more smoke flavor this way as the fire should run a little hotter than other designs. Since we chose an odd size for the firebricks my dimensions may not save money due to the cost of the fire bricks. It would have been plenty cheaper with 1.25” bricks and most likely more than enough insulation.



tinspark
Expert
Expert
Posts: 376
Joined: February 20th, 2020, 3:08 pm
Title: Re-Member
Location: CRAZY-CALIF.

Re: Our Gravity Feed Smoker design and build.

Post by tinspark » July 10th, 2020, 12:14 pm

Lowe's has cheap ones for $3.28 each, so that's hard to beat!!
Theirs is 1" thicker than the overpriced cheapies..
9"x4"x2-1/4" rated at 3000 deg, F (manufactured by Oldcastle Precast)-

I'm liking your design.
When will you have the parts cut?

Here's a link to the referenced fire brick...not sure what thickness you are using..
https://www.lowes.com/pd/Oldcastle-Conc ... k/50037062


Regards,
tinspark's the name buildin' "n" smokin's the game
Current build-GF:https://smokerbuilder.com/forums/viewto ... 30#p114730
last build- Santa Maria Smoker:
https://smokerbuilder.com/forums/viewto ... 04#p113904

Dargo
SmokerBuilder Addict
SmokerBuilder Addict
Posts: 172
Joined: April 6th, 2018, 3:37 pm

Re: Our Gravity Feed Smoker design and build.

Post by Dargo » July 10th, 2020, 4:31 pm

tinspark wrote:Lowe's has cheap ones for $3.28 each, so that's hard to beat!!
Theirs is 1" thicker than the overpriced cheapies..
9"x4"x2-1/4" rated at 3000 deg, F (manufactured by Oldcastle Precast)-

I'm liking your design.
When will you have the parts cut?

Here's a link to the referenced fire brick...not sure what thickness you are using..
https://www.lowes.com/pd/Oldcastle-Conc ... k/50037062
Parts were cut last week and pickup by the fabricator on Thursday:

Image

Cannot wait to see what all these pieces look like when put together.

Thank you for the firebricks. If there is ever another smoker made, we will design for the 2.5”. Mine are 2” because by the time I noticed they were nearly impossible to source it was too late.

I have ordered all the parts for the smoker already and they have arrived at the shop. Image
Image
Image



JKalchik
Expert
Expert
Posts: 384
Joined: March 29th, 2018, 10:07 am
Title: Member
BBQ Comp Team Name: Not competing yet...
Location: Minnesota

Re: Our Gravity Feed Smoker design and build.

Post by JKalchik » July 11th, 2020, 9:53 am

What's the weight rating on those casters?

I'm sure you already know this..... even with the firebrick, I'd expect the firebox and especially the uninsulated charcoal chute to get very hot in operation. Make sure the kids know it's a burn hazard.


"Measure with micrometer, mark with chalk, cut with fireaxe." Ted M., USCG (ret)
"Smoked pork. It belongs in me." Giles L

Dargo
SmokerBuilder Addict
SmokerBuilder Addict
Posts: 172
Joined: April 6th, 2018, 3:37 pm

Re: Our Gravity Feed Smoker design and build.

Post by Dargo » July 11th, 2020, 10:06 am

JKalchik wrote:What's the weight rating on those casters?

I'm sure you already know this..... even with the firebrick, I'd expect the firebox and especially the uninsulated charcoal chute to get very hot in operation. Make sure the kids know it's a burn hazard.
Casters are 400lbs rated.

I do have a stick burner and expect similar heat on the firebox. My son is 10 so I have gotten a little used to it and probably need to keep an eye out for guest more than I am. Thanks for the reminder.



tinspark
Expert
Expert
Posts: 376
Joined: February 20th, 2020, 3:08 pm
Title: Re-Member
Location: CRAZY-CALIF.

Re: Our Gravity Feed Smoker design and build.

Post by tinspark » July 11th, 2020, 12:25 pm

Looks like a nice start! A lot of material in the back of your truck!!
That should keep you busy for a spell.
This'll be a nice build!!
Keep the pics and progress posted...


Regards,
tinspark's the name buildin' "n" smokin's the game
Current build-GF:https://smokerbuilder.com/forums/viewto ... 30#p114730
last build- Santa Maria Smoker:
https://smokerbuilder.com/forums/viewto ... 04#p113904

Dargo
SmokerBuilder Addict
SmokerBuilder Addict
Posts: 172
Joined: April 6th, 2018, 3:37 pm

Re: Our Gravity Feed Smoker design and build.

Post by Dargo » July 21st, 2020, 8:44 pm

Here are some progress pics I got from the fabricator:

Image
Image
Image
Image
Image
Image



User avatar
Dirtytires
Expert
Expert
Posts: 3129
Joined: November 24th, 2015, 12:36 am
Title: It ain't broke...yet
BBQ Comp Team Name: Dont compete...cook for events once in a while
Location: Phoenix, Az

Re: Our Gravity Feed Smoker design and build.

Post by Dirtytires » July 21st, 2020, 10:57 pm

Lookin good!



User avatar
Big T
Moderator
Moderator
Posts: 6330
Joined: September 1st, 2013, 2:40 pm
Title: Go Getter
BBQ Comp Team Name: Backyard Boys
Location: Lower Alabama

Re: Our Gravity Feed Smoker design and build.

Post by Big T » July 21st, 2020, 10:58 pm

:LG:


Measure Twice.....Cut Three Times.

User avatar
mp4
Expert
Expert
Posts: 1234
Joined: September 2nd, 2014, 6:28 pm
Title: Independent Thinker
BBQ Comp Team Name: Just a few backyard for fun competitions.
Location: Central Wisconsin

Re: Our Gravity Feed Smoker design and build.

Post by mp4 » July 22nd, 2020, 5:47 am

AWESOMENESS!!!



User avatar
El Gato
Expert
Expert
Posts: 706
Joined: January 23rd, 2013, 11:06 pm
Title: HKU university
BBQ Comp Team Name: Not competing yet...

Re: Our Gravity Feed Smoker design and build.

Post by El Gato » July 22nd, 2020, 9:50 am

WOW!!!!!



Dargo
SmokerBuilder Addict
SmokerBuilder Addict
Posts: 172
Joined: April 6th, 2018, 3:37 pm

Re: Our Gravity Feed Smoker design and build.

Post by Dargo » July 22nd, 2020, 9:52 am

Needless to say I cannot wait to get this baby cooking. Hopefully all goes rather smoothly.



tinspark
Expert
Expert
Posts: 376
Joined: February 20th, 2020, 3:08 pm
Title: Re-Member
Location: CRAZY-CALIF.

Re: Our Gravity Feed Smoker design and build.

Post by tinspark » July 22nd, 2020, 12:07 pm

Very nice start!


Regards,
tinspark's the name buildin' "n" smokin's the game
Current build-GF:https://smokerbuilder.com/forums/viewto ... 30#p114730
last build- Santa Maria Smoker:
https://smokerbuilder.com/forums/viewto ... 04#p113904

Dargo
SmokerBuilder Addict
SmokerBuilder Addict
Posts: 172
Joined: April 6th, 2018, 3:37 pm

Re: Our Gravity Feed Smoker design and build.

Post by Dargo » July 22nd, 2020, 5:56 pm

A little more progress today. Out covers are being installed, with quite a bit more welding.

Image
Image



User avatar
Big T
Moderator
Moderator
Posts: 6330
Joined: September 1st, 2013, 2:40 pm
Title: Go Getter
BBQ Comp Team Name: Backyard Boys
Location: Lower Alabama

Re: Our Gravity Feed Smoker design and build.

Post by Big T » July 22nd, 2020, 7:14 pm

:kewl:


Measure Twice.....Cut Three Times.

Dargo
SmokerBuilder Addict
SmokerBuilder Addict
Posts: 172
Joined: April 6th, 2018, 3:37 pm

Re: Our Gravity Feed Smoker design and build.

Post by Dargo » July 22nd, 2020, 7:31 pm

A couple more of the finished covers:

Image
Image



User avatar
ajfoxy
Expert
Expert
Posts: 2364
Joined: April 12th, 2016, 8:07 pm
Title: Neophyte Smoker Bldr
BBQ Comp Team Name: Not competing yet...
Location: Brisbane, Queensland, Australia

Re: Our Gravity Feed Smoker design and build.

Post by ajfoxy » July 23rd, 2020, 4:06 am

Looking really good! :kewl:


Learning generally boils down to "Repetition or the avoidance of pain", some people learn by doing, some by watching and some just have to pee on the electric fence.

Whether you think that you can, or that you can't, you are usually right. Henry Ford

User avatar
bjustison
Wants to build a smoker
Wants to build a smoker
Posts: 27
Joined: July 27th, 2018, 9:31 pm
Title: Member
BBQ Comp Team Name: Not competing yet...
Contact:

Re: Our Gravity Feed Smoker design and build.

Post by bjustison » July 23rd, 2020, 11:03 am

Looks good!



Post Reply

Return to “Gravity Feed Smokers (GF)”