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 My hot air roaster build
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| Rostikalsongen |
Posted on 08/30/2016 1:43 PM
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 Newbie  Posts: 3 Location: Joined: August 30, 2016 |
Hello, I have built a roaster based off an air popper. While there is a possibility to post images here, the limit is 268 kB and after several attempts with online compressors and making the images smaller in paint I quit. For anyone interested the pics and some explanation could be viewed at http://www.coffee...build.html
Rostikalsongen attached the following images:
Edited by JackH on 09/07/2016 5:04 PM |
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| JackH |
Posted on 09/06/2016 5:35 AM
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 Administrator  Posts: 1789 Location: Boston, Massachusetts Joined: May 10, 2011 |
Lots of views but no responses, comments. I think you did a great job on the roaster. ---Jack
KKTO Roaster. |
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| snwcmpr |
Posted on 09/06/2016 7:52 AM
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 1 1/2 Pounder  Posts: 919 Location: Western NC Joined: March 03, 2011 |
I saw it, liked it, but I don't know enough to comment, sorry.
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Backwoods Roaster "I wish I could taste as well as I wish I could roast." As Abraham Lincoln said "Do not trust everything you read on the internet". |
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| ChicagoJohn |
Posted on 09/06/2016 10:32 AM
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 Pounder  Posts: 511 Location: Chicagoland Joined: June 15, 2015 |
Quote For anyone interested the pics and some explanation could be viewed at http://www.coffee...build.html Hello and welcome to the forums  I did a popper mod recently too and I really like yours. I used the SSR approach controlled by a computer a long time ago as part of a control system for my wife's ceramics kilns and it is certainly effective. I like your use of a temperature controller with the SSR. The coils, if run in parallel, only draw around 13.4A at 120VAC, so it's surprising the 20A SSR didn't work OK. On the mod I did I elected to use a pulse width modulator capable of handling the load involved (SMAKNŽ AC 0-220V 20A Pulse Width Modulator PWM Electric Motor Speed Controller Max 4000W by SMAKN $16.66 Prime) and have had no issues in that regard.) I really like your idea of having a main power supply and then a second on-off for the heating coils. I did the same to prevent heating without cooling from the fan since that will almost melt vital components as I found out by ruining two poppers (but none since I made it idiot proof :). I've found that having limited control of the fan speed can be helpful in fine tuning rate of temperture rise using the PWM but often I don't use it, and the SSR approach may make it easier to control temperature especially if you have PID. I hope you continue to add to your description once you get your new SSR. Maybe consider posting a video on YouTube and providing a link here. Great job, and 
So many beans; so little time.... |
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| ginny |
Posted on 09/07/2016 12:18 PM
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 Founder  Posts: 3476 Location: Joined: October 24, 2005 |
super job on this roaster... thanks for posting. ginny  |
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| JackH |
Posted on 09/07/2016 5:07 PM
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Administrator Posts: 1789 Location: Boston, Massachusetts Joined: May 10, 2011 |
Thanks to ChicagoJohn for re-sizing the photos! Size scaling (800 pixels) and image quality (50%) had to be adjusted to get them posted. ---Jack
KKTO Roaster. |
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