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 KKTO Build
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| mkane |
Posted on 03/24/2020 12:43 PM
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 1/4 Pounder  Posts: 151 Joined: October 23, 2017 |
Thanks. I might just try a bit fat probe and see if it stays straight.
Always learning
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| mkane |
Posted on 03/24/2020 7:16 PM
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1/4 Pounder Posts: 151 Joined: October 23, 2017 |
I have the TC wires shoved into a DMM. Don't know how accurate this could be. Charged @ 400? TP 45 sec 177? 3:50 300? 4:38 320? 5:12 350? 6:00 370? 1C 8min 395? I dropped roast @ 10:20-430?. My wife likes it dark. Always learning
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| mkane |
Posted on 03/24/2020 7:17 PM
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1/4 Pounder Posts: 151 Joined: October 23, 2017 |
Keep forgetting
mkane attached the following images:
Always learning
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| mkane |
Posted on 03/31/2020 8:43 PM
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1/4 Pounder Posts: 151 Joined: October 23, 2017 |
This arrived as did the tubing. https://www.ebay....2569538620 much for instructions , does this need 220v AC to operate? My silicone held up to the heat BTW. Happy camper.
Edited by JackH on 04/01/2020 7:06 AM Always learning
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| Koffee Kosmo |
Posted on 03/31/2020 10:16 PM
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 Administrator  Posts: 1611 Joined: December 31, 2008 |
Quote mkane wrote: This arrived as did the tubing. https://www.ebay.com/itm/4000W-AC-220V-SCR-Voltage-Regulator-Motor-Speed-Control-Semiconductor-Silic/202569538620No much for instructions , does this need 220v AC to operate? My silicone held up to the heat BTW. Happy camper. Good to see that you are enjoying coffee roasting This info from the specs How to Use: 1.The input is connected with the AC 220V. 2.Output wire is connected to the electric cooker or appliance motor. 3.Turn the knob for speed, voltage, temperature control. However it may work on 110V as the Voltage regulation range starts at 10V But someone with more electrical knowledge can answer that better than me 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. |
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| renatoa |
Posted on 04/01/2020 1:58 AM
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 Administrator Posts: 2497 Joined: September 30, 2016 |
Actually this is "push the buttons" version, instead "turn the knob". Much easier to reproduce roasts, with knob you can't return to a position with 1% precision, which is 5 C degrees in ET, not negligible. I would start with empty oven, to find the power value that raise temperature to 270 C, the red line you shouldn't cross. Also, 175-200 C is an useful range to mark, for the preheat. During this tuning you will find also the temperature step for a button push, worth to note. At the end you will find the range you are playing for the roast is not that large as expected, probably some 10-15 steps, in the 60-70 values ballpark, so is for the lids I tested so far. |
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| mkane |
Posted on 04/01/2020 6:48 AM
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1/4 Pounder Posts: 151 Joined: October 23, 2017 |
Thanks you two. I'll try start with our socket current which is 117v just to be safe.
Always learning
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| mkane |
Posted on 04/01/2020 5:27 PM
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1/4 Pounder Posts: 151 Joined: October 23, 2017 |
It actually works.
mkane attached the following image:
Always learning
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| renatoa |
Posted on 04/02/2020 4:05 AM
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Administrator Posts: 2497 Joined: September 30, 2016 |
How else... ?  Not sure what I read there... 280 degrees at 60% ? C or F ? |
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| mkane |
Posted on 04/02/2020 8:04 AM
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1/4 Pounder Posts: 151 Joined: October 23, 2017 |
F. I'll dicker with it some more today. Not real pleased with the TC placement. Seems to get banged up where it's at. Beans get stuck behind it. It's also in and out of the beans as the agitator goes round and round. Don't know what the solution for that is. More beans, maybe? Agitator tweeking, possibly.
Always learning
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| renatoa |
Posted on 04/02/2020 8:10 AM
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Administrator Posts: 2497 Joined: September 30, 2016 |
Did you noticed the picture with my probe placement ? |
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| mkane |
Posted on 04/02/2020 8:16 AM
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1/4 Pounder Posts: 151 Joined: October 23, 2017 |
Yes I did. I'll do some experimentation today.
Always learning
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