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snwcmpr
08/20/2019 3:47 PM
Roasted the last of the SM Kenya Nyeri Katogoto this morning.

snwcmpr
08/20/2019 3:47 PM
So, Allen gets notification. 'renatoa' gets notification. ... I do not. Funny stuff. But not earth shattering.

snwcmpr
08/20/2019 2:01 PM
PM sent

allenb
08/20/2019 10:32 AM
snwcmpr, send me a pm so can see if I'm getting email notifications now. Thx.

snwcmpr
08/18/2019 4:31 AM
Awesome I sent an email to AllenB and JackH The email to JackH failed. I had screenshots of my settings.

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CoffeeAir II Roaster Build
greencardigan
Do you plan to make any changes from your last build? Cement board heat chamber again?
 
seedlings
greencardigan wrote:
Do you plan to make any changes from your last build? Cement board heat chamber again?


I'll have a new, different blower to design around, but otherwise only slight modifications, especially how the hopper sits on the heater. The hopper will have a wider base and sit shallower in the roaster top. Other than that, pretty much the same.

CHAD
seedlings attached the following image:
13widerbasehopper.jpg

Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
seedlings
The CoffeeAirII 2 build is underway.

i206.photobucket.com/albums/bb54/seedlings/CoffeeAirII2hopper.jpg
i206.photobucket.com/albums/bb54/seedlings/CoffeeAirII2frame.jpg

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
allenb
Looking good Chad!

Whats the white plastic looking thing inside your enclosure?
1/2 lb and 1 lb drum, Siemens Sirocco fluidbed, presspot, chemex, cajun biggin brewer from the backwoods of Louisiana
 
seedlings
allenb wrote:
Looking good Chad!

Whats the white plastic looking thing inside your enclosure?


The vacuum motor came with a rubber 'shock' mount and a plastic cover. I figured it could help with reducing noise. The inside will be lined with 1.5" rigid industrial fiberglass.

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
JETROASTER
Looks great!! Is that main housing right-side up?( I'm trying to figure out the dark area hidden behind the blower.) .. Very cool. - Scott
 
seedlings
Right side up, no dark area - it's an optical illusion. There are two black rubber 'bushings' on top, and you're seeing the two square openings to the motor.

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
seedlings
The new roaster is 'finished' awaiting decent weather for a test roast.

i206.photobucket.com/albums/bb54/seedlings/CoffeeAirRoaster.jpg

i206.photobucket.com/albums/bb54/seedlings/CoffeeAirRoasterControls.jpg

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
greencardigan
Nice! Keep this one and give the old one away? ;)
 
seedlings
greencardigan wrote:
Nice! Keep this one and give the old one away? ;)


Nope. I was hired to make one like mine. I didn't cut quite as many corners since this was a paying customer.

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
allenb
Great looking roaster Chad. I'm envious!

Nice touch with the controls enclosure.

Allen
1/2 lb and 1 lb drum, Siemens Sirocco fluidbed, presspot, chemex, cajun biggin brewer from the backwoods of Louisiana
 
JETROASTER
Very Nice! I hope it was profitable as well!
Had you considered a leasing program in the future?
You retain the asset,... steady income(longterm)...scheduled maintainance program,..upgrades, yada,yada,yada. ....I'm jus' sayin'...
-Nice machine! -Scott
 
dja
you could go to the lumber yard and get one of them little pagoda style post toppers and drill some holes in it add some screen wire on the inside to top the bean hopper with.

no legs, hows it gonna walk off in the middle of the night.

if you put a flap inside that is hinged so when you flipped it in to partially close off the hopper you would have an automatice bean dump.
I pour Iron and roast Coffee BeansThumbsUp
If life seems normal your not going fast enough Mario Andrette
 
seedlings
dja wrote:
if you put a flap inside that is hinged so when you flipped it in to partially close off the hopper you would have an automatice bean dump.


That reminds me... I have to put a HANDLE on this one. I mishandled pliers dumping my hopper the other day and lost a pound of 435F coffee on the ground.

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
seedlings
freshbeans wrote:
Very Nice! I hope it was profitable as well!
Had you considered a leasing program in the future?
You retain the asset,... steady income(longterm)...scheduled maintainance program,..upgrades, yada,yada,yada. ....I'm jus' sayin'...
-Nice machine! -Scott


Profitable? I dunno yet... spent all the money he sent for parts, but I'm several hours over my original quote... so I hope he's not too frustrated that my guesstimate was off.

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
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seedlings
Test roast fail. Lost a caulk seam.

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
JETROASTER
Merely a setback. Did that effect CFM ? -Scott
 
seedlings
freshbeans wrote:
Merely a setback. Did that effect CFM ? -Scott


I'm sure it did. Have to wait 24 hours so I don't blow it again. Retest tonight.

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
seedlings
A bar was required across the hopper to keep it from losing heat flowing underneath - the hopper would bounce on occasion from the pressure under 1.2 kilograms (2.65 pounds). Also had to redo the hole pattern. It had the correct number of 1/8" holes, but the holes were spread out over 4 square inches. I had to condense the same number of holes into about 2 square inches for the coffee to circulate properly.

After all that, the roaster can roast 2.65 pounds to second crack in just under 20 minutes. It can roast 1.75 pounds to second crack in 14 minutes.

Hope the customer is satisfied because the next step would have to be adding heat element(s).

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
seedlings
**Update**

Every so often I get an email or message about this original CoffeeAir II project from 2010. I'm still using it 6 years later in 2016. The only thing I've had to do as far as maintenance is replace one of the two heat elements.

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
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