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KKTO build questions***FOR SALE***
renatoa
Top  #101 Print Post
Posted on 03/09/2020 7:54 AM
Sure, probably safety for uber-overheat.
In the same series circuit with the temperature regulator, but not linked to temperature knob.
 
mkane
Top  #102 Print Post
Posted on 03/09/2020 11:47 AM
Heat shield off
mkane attached the following image:
dsc_0262.jpg
Always learning
 
renatoa
Top  #103 Print Post
Posted on 03/09/2020 12:44 PM
Is this an electronic control lid, or using mechanical knobs for timer and thermostat ?

If electronic, then the heat control is inside the plastic cover, a relay. Requires complete dismount.
If thermostat, then it should be under the bulb plate we see in image, on the same vertical as temperature knob shaft.
 
mkane
Top  #104 Print Post
Posted on 03/09/2020 4:14 PM
It's got knobs
Always learning
 
renatoa
Top  #105 Print Post
Posted on 03/09/2020 4:28 PM
Then the thermostat is under the hole circled in red, is the hot air admission.
Same as in the video.
renatoa attached the following image:
dsc_0262_1.jpg
 
mkane
Top  #106 Print Post
Posted on 03/09/2020 5:24 PM
Thanks. I need to find that video
Always learning
 
Koffee Kosmo
Top  #107 Print Post
Posted on 03/09/2020 6:14 PM
You won?t believe it
My trusty Turbo Oven of several years has gone to heaven

Lucky I had a spare brand new in box TO unit ready to go
Today in testing the new unit I have noticed that it does not cycle On & Off
The element is on all the time

Let?s see how we go when I do a roast

KK
I home roast and I like it. Designer of the KKTO
Roaster Build information
https://homeroast...ad_id=1142

https://docs.goog...lide=id.i0
Blog - http://koffeekosm...gspot.com/

Bezzera Strega, Mazzer Robur Grinder, Pullman Tamper Convex,
(KKTO) Turbo Oven Home Roaster.
 
Web
Koffee Kosmo
Top  #108 Print Post
Posted on 03/09/2020 6:34 PM
First roast has been completed
A blend of Ethiopian and Peru
Kept a close watch on the roast and had to keep a close eye so it did not get away from me

I had to adjust the temp as I saw fit and once I lifted the D handle to manually switch the heat off for about 20 seconds

But the roast was beautiful

KK
I home roast and I like it. Designer of the KKTO
Roaster Build information
https://homeroast...ad_id=1142

https://docs.goog...lide=id.i0
Blog - http://koffeekosm...gspot.com/

Bezzera Strega, Mazzer Robur Grinder, Pullman Tamper Convex,
(KKTO) Turbo Oven Home Roaster.
 
Web
mkane
Top  #109 Print Post
Posted on 03/09/2020 7:59 PM
coffee drink
Always learning
 
renatoa
Top  #110 Print Post
Posted on 03/10/2020 1:43 AM

Quote

Koffee Kosmo wrote:

You won?t believe it
My trusty Turbo Oven of several years has gone to heaven

Lucky I had a spare brand new in box TO unit ready to go
Today in testing the new unit I have noticed that it does not cycle On & Off
The element is on all the time

Let?s see how we go when I do a roast

KK


Bulb? Motor, anything else ?
You are lucky, the lids that are sold here have a life of two-three years average, with a pound roast weekly.
The mechanics/motor is the main failure point, because the oils and chaff make a slime that covers anything in the motor section.
If you don't want to be terrified, don't ever dismount a lid up to the last level, under the plastic canopy.
Edited by renatoa on 03/10/2020 2:55 AM
 
Koffee Kosmo
Top  #111 Print Post
Posted on 03/10/2020 1:48 AM
Still works at a reduced capacity, just doesn?t get up to heat
I see a lot of white lime looking material inside the glass element tube
Have a feeling that if used more it will probably blow the wire filament

KK
I home roast and I like it. Designer of the KKTO
Roaster Build information
https://homeroast...ad_id=1142

https://docs.goog...lide=id.i0
Blog - http://koffeekosm...gspot.com/

Bezzera Strega, Mazzer Robur Grinder, Pullman Tamper Convex,
(KKTO) Turbo Oven Home Roaster.
 
Web
JackH
Top  #112 Print Post
Posted on 03/10/2020 6:50 AM
My Turbo has been going since 2011. It is an older sunpentown with the solid heating element. I do a complete disassembly including the motor every 3 months or so. It does get nasty looking in the top chamber where the innards are. The motor becomes bogged down and slows with the oils and gunk from roasting.
---Jack

KKTO Roaster.
 
mkane
Top  #113 Print Post
Posted on 03/10/2020 8:53 AM
Jack, what type of cleaning fluid do you use?
Always learning
 
JackH
Top  #114 Print Post
Posted on 03/10/2020 9:20 AM

Quote

mkane wrote:

Jack, what type of cleaning fluid do you use?


I initially Vac out the bulk and use simple green to clean the gum and gunk.
Then a light lubrication of the motor shaft. Let everything dry before running. My motor is easy to remove and take apart. Other turbo oven designs may be very difficult.
---Jack

KKTO Roaster.
 
mkane
Top  #115 Print Post
Posted on 03/10/2020 4:54 PM
Thanks. Nothing caustic then.
Always learning
 
Alaroast
Top  #116 Print Post
Posted on 05/26/2020 2:23 PM
Just an update since I originally started this thread, I've done 14 roasts at 650 gms each and am overall pleased with the results. I've adjusted volume up a few times but 650 seems good for my build. Consistency of roast is very good and almost always takes the same amount of time. Thanks for all the help and especially to KK for this efficient design.
Fiorenzato Bricoletta Espresso Machine, Obel EB Grinder, USRC 3kg roaster
 
Alaroast
Top  #117 Print Post
Posted on 10/31/2020 1:32 PM
***UPDATE/ FOR SALE***

Well the KKTO has served me well for the last several months but I have now moved on to a 3 kg USRC drum roaster, so..., Is anybody interested in the base section of my roaster including the motor? If you go back through these posts, it's essentially everything you need less the turbo oven. Includes the outer pot with insulated false bottom, the inner chaff separator with silicon tube seal at top, and the motor and shaft with stirring arms. It's also got a small hole drilled near top of outer pot for thermocouple installation but thermocouple is not included. Hole can be sealed up if not using a thermocouple. I'll let it go for $50 plus shipping. If interested, my zip is 35758 which you can use to get your shipping estimate from either USPS or Fedex.
Edited by Alaroast on 10/31/2020 1:39 PM
Fiorenzato Bricoletta Espresso Machine, Obel EB Grinder, USRC 3kg roaster
 
Alaroast
Top  #118 Print Post
Posted on 11/02/2020 12:28 PM

Quote

Alaroast wrote:

***UPDATE/ FOR SALE***

Well the KKTO has served me well for the last several months but I have now moved on to a 3 kg USRC drum roaster, so..., Is anybody interested in the base section of my roaster including the motor? If you go back through these posts, it's essentially everything you need less the turbo oven. Includes the outer pot with insulated false bottom, the inner chaff separator with silicon tube seal at top, and the motor and shaft with stirring arms. It's also got a small hole drilled near top of outer pot for thermocouple installation but thermocouple is not included. Hole can be sealed up if not using a thermocouple. I'll let it go for $50 plus shipping. If interested, my zip is 35758 which you can use to get your shipping estimate from either USPS or Fedex.

Soldgood post
Fiorenzato Bricoletta Espresso Machine, Obel EB Grinder, USRC 3kg roaster
 
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