topbanner.gif
September 25 2016 00:04:02
New Raffle 2016

Our 1st will be for a Zen Roaster, pics and info to follow.
Login
Username

Password



Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.
Navigation
bullet2.gif HOMEROASTERS.ORG
bullet2.gif Active Forums
bullet2.gif FORUM INDEX
bullet2.gif Downloads
bullet2.gif News
bullet2.gif Forum FAQ
bullet2.gif Contact Me
bullet2.gif Photo Gallery
bullet2.gif Search
bullet2.gif User's Voice
Forum Threads
Newest Threads
bullet2.gif P1 Group Build?
bullet2.gif "B" model panel butt...
bullet2.gif What Grinder for Pou...
bullet2.gif Reverse Pour Over
bullet2.gif Hip Profiling in 2016
Hottest Threads
bullet2.gif Brewer to Roaster... [187]
bullet2.gif TC4 with aArtisan... [129]
bullet2.gif Now Hottop Roaste... [73]
bullet2.gif PETS also part of... [67]
bullet2.gif Recent Happy Mug ... [57]
Donate to HRO
Please enter your site username (if you have one) and your email address (required) to be sent with this donation for tracking and contact purposes.


Site Username
If you don't have a site username, just enter "Guest"


eMail Address **REQUIRED**

Users Online
bullet2.gif Guests Online: 4

bullet2.gif Members Online: 0

bullet2.gif Total Members: 4,540
bullet2.gif Newest Member: mikemaddux
BotSlap Panel
bullet2.gif Last check: 09/24/2016 23:37
bullet2.gif Slap count: 0
bullet2.gif Last checked ID: 5095
View Thread
Homeroasters.org » BUILDING A ROASTER » Fluidbed Roaster
Who is here? 1 guest(s)
 Print Thread
Brewer to Roaster..blower question...
JETROASTER
Hi tra,
I made the link clickable, but it appeared to be 'private'

Settings?? -Scott
 
tra757
Thanks, I made it public.

Tim
 
danw2002
the thing i was thinking for this was a dual walled vent like is on my
Gas water heater, use it just above the heat coils, or even mount the coils inside it, then use my chaff/heat return fan to blow air down from the top along the sides, through this outer pipe and back into my air intake for the heat elements..and make it adjustable to change the heat rise, depending on what you needed the roast system to do....many ideas...so little time....mmm
Dan Williams...WHAAAT!?!?!? I have NOT had enough coffee.....
 
oldgearhead
Well I thought I thought of everything. But of course there is one tiny detail. As I started to assemble the 5 modules into a complete unit I
discovered I had no way to attach the manifold thermocouple to the PID.
Furthermore, after turning my shop upside-down, I must conclude the only female 'K' connector in Indiana was missing. So, while waiting for the mailman I ordered some 'Mighty Mite' insulation for the manifold and pre-tested the modules:
Module 1 (base & blower) - Check
Module 2 (Brewer frame, speed control, and SSR) - Check
Module 3 (Brewer front & PID) - Check
Module 4 (Electrical entrance and control panel) - Check
Module 5 (Brewer top, switches, air baffle, and air recycle box) - Check
oldgearhead attached the following image:
ladder.jpg

Edited by oldgearhead on 06/28/2011 06:20
No oil on my beans...
 
seedlings
30 amps! What size wire did you run from the breaker to the roaster? I used #10 for 240V, 20A.

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
oldgearhead
Breaker is 40A, wire is 10ga, line cord is 14/3. I can run about anything because the distance is short, the main is a simple QO and it has room for another 80A. I really haven't totally ruled out 220 yet. But the current set-up will probably peak at 21A on 120.

OGH IBEW 1225
No oil on my beans...
 
oldgearhead
Saturday assembly recap page 01:
Okay the female TC connector has arrived, each module has been checked out, and its time to put this thing together.

I'll start with an image of the base and blower. I shot this with a $900.00
lens that I managed to miss-focus:
oldgearhead attached the following image:
dsc_8338.jpg

No oil on my beans...
 
oldgearhead
Saturday assembly recap page 02:
Here's the heating manifold. Its all sealed with Permetex Red and fiberglass tape.
oldgearhead attached the following image:
dsc_8339.jpg

No oil on my beans...
 
oldgearhead
Saturday assembly recap page 03:
Here's the front. Notice the female TC connector? Very important item.
oldgearhead attached the following image:
dsc_8340.jpg

No oil on my beans...
 
oldgearhead
Saturday assemblt recap page 04:
The top with all the control switches and the air control mixing baffle:
oldgearhead attached the following image:
dsc_8341.jpg

No oil on my beans...
 
oldgearhead
Saturday assembly recap page 05:
This is the one-piece frame, back. and sides. See the obsolete Dayton
speed control? I hope it works out. My only concern is it has a limited turn-down of only 25% min speed.
oldgearhead attached the following image:
dsc_8342.jpg

Edited by oldgearhead on 06/30/2011 19:05
No oil on my beans...
 
oldgearhead
Saturday assembly recap page 06:
..and the control box. If you look real close you will notice
I forgot to wire a neutral to the relay. So it didn't quite work the way I planned the first time...
oldgearhead attached the following image:
dsc_8345.jpg

No oil on my beans...
 
oldgearhead
Saturday assembly recap page 06:
The mailman just dropped off the firewall insulation I ordered. You know, the stuff they use to line the inside of 'funny cars' with.
Here is the completed heat manifold.
oldgearhead attached the following image:
dsc_8347.jpg

No oil on my beans...
 
greencardigan
oldgearhead wrote:
Saturday assembly recap page 06:
The mailman just dropped off the firewall insulation I ordered. You know, the stuff they use to line the inside of 'funny cars' with.
Here is the completed heat manifold.

Great pics.

Can I ask how easy it will be to replace your element if it's every required?
 
oldgearhead
Okay I just couldn't wait so I tossed in 400 grams of some Thai 'Hot Boy'
beans and turned it on. Here is my list of issues:
1) The manifold TC is worthless (to much air flow maybe?) it reads 345F
when the beans are in a 'roaring' first crack.

2) How did I know the beans were in first crack? I got close and started to listen when I received a shower of chaff accompyed by the 'cracking' noise comming from over my head! I checked everything and didn't see anything wrong until I realized the pressure at the top of the RC was actually lifting the brewer top in the air. I've got to tie down the top or add weight or clamps.

3) The Z&D baffle-separator worked well but as David predicted it isn't big enough. That shouldn't be too hard to fix because there is plenty of room in the RC you could even put a cyclone separator in it if you wanted.
However, for coffee I think a baffle-separator is just about as effective.

4) It was 96F in the shop this PM so I didn't try to recycle any air.

Conclusions:
A) 400 grams to first crack in 10 minutes. Full-city in 14 minutes. I don't (intentionally) do dark roasts.
B) Current with 120 VAC was 20 amps with heater on 100%.
C) The speed control could be a problem. With 400 grams I couldn't turn it down quite far enough for a good 'spout'. I'll try 500 grams next time.
D) I guess I need to gring a slot in the RC base for my BMT probe.
E) I wonder what it will do if I can seal the top?

I'll try to get some video over the weekind.
No oil on my beans...
 
oldgearhead
greencardigan wrote:
oldgearhead wrote:
Saturday assembly recap page 06:
The mailman just dropped off the firewall insulation I ordered. You know, the stuff they use to line the inside of 'funny cars' with.
Here is the completed heat manifold.

Great pics.

Can I ask how easy it will be to replace your element if it's every required?

Well its 4 bolts and one hose clamp to remove the manifold. THe insulation is fastened with some tape. Cut the wires, remove a bolt and the element will slide out. I think the worst part would be digging out the red stuff..and the re-installation is a bit tricky.
No oil on my beans...
 
greencardigan
Congrats on a sucessful 1st roast! I was wondering how it would go with only 1450W element.

Looking forward for a video.
 
dja
Jim

one quick question, whats your opinon now that you have a roast done where you can see so much of the bean mass.

I had pressure issues myself with my roaster trying to hold it together when its at 450 degrees ain't no fun cowboy! you don't relize how much pressure these things take to move said beans.

David
Edited by dja on 06/30/2011 20:44
I pour Iron and roast Coffee BeansThumbsUp
If life seems normal your not going fast enough Mario Andrette
 
seedlings
Speed control doesn't get low enough... I have the same trouble. In disassembling them, though, there is a variable resistor inside. I've wondered if it sets the low on-off threshold? You can access the dial if you take the back off. Maybe I'll play with it sometime if you don't beat me to it.

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
greencardigan
seedlings wrote:
Speed control doesn't get low enough... I have the same trouble. In disassembling them, though, there is a variable resistor inside. I've wondered if it sets the low on-off threshold? You can access the dial if you take the back off. Maybe I'll play with it sometime if you don't beat me to it.

CHAD

There's a good chance your router controller has a similar circuit to the DIY version that RoasterRob and myself are using. It has a variable resistor in parallel with the main knob/variable resistor that sets the maximum resistance and therefore minimum power.

http://www.epanor...ml#1kw230v

Do you have a circuit diagram for the router controller?
 
Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
Attempting a 5 kg roaster build Drum Roasters 12 09/23/2016 06:04
My hot air roaster build Building a Coffee Roaster 6 09/07/2016 15:07
Snake Under my F*ing Roaster Roasting Coffee 7 09/02/2016 17:55
Hello! my first post and my first Roaster MY FIRST ROASTER 15 09/02/2016 06:54
Dereks 1-2Kg drum roaster build Drum Roasters 54 09/02/2016 02:15
Member Poll
OK how big a stash?

under 25 lbs

under 75 lbs

76 - 150

over 150

way over 150

You must login to vote.
Shoutbox
You must login to post a message.

ginny
09/23/2016 07:08
mikemaddux Welcome enjoy...

JackH
09/21/2016 14:02
welcome2 neilharlan

ginny
09/20/2016 11:38
DereckD Welcome thanks for joining...

ginny
09/19/2016 16:50
geowizard57 welcome cup enjoy...

ginny
09/19/2016 06:02
gegtik welcome2 thanks for joining...

JackH
09/19/2016 01:26
Welcome Caficultor

ginny
09/17/2016 13:09
thank you guys for the BD wishes, went to Palm Springs and it rocked... roar

JackH
09/17/2016 01:20
Welcome Husamka

JETROASTER
09/16/2016 07:21
Happy Birthday Ginny!! Enjoy!!! tikibar

allenb
09/15/2016 17:28
Creh Welcome

JackH
09/13/2016 04:16
welcome2 Serek

ginny
09/11/2016 05:53
Larryh86GT welcome to forum enjoy...

ginny
09/10/2016 12:35
repomanz Welcome enjoy and thanks for joining us...

ginny
09/10/2016 11:23
melisandegosselin welcome2 thanks for joining us...

ginny
09/09/2016 06:49
welcome to forum welcome all new members...