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Rewire 230V popcorn machine fan & heater
renatoa
Top  #81 Print Post
Posted on 11/28/2021 6:34 AM

Quote

Ploni wrote:
No fan.


Noticed in your last post picture that red wire to motor is soldered on wrong pad, please check again picture from post #75.
 
Ploni
Top  #82 Print Post
Posted on 11/29/2021 2:03 AM
SUCCESS!

Thank you very much.

What is the purpose of the MENU controls?
 
renatoa
Top  #83 Print Post
Posted on 11/29/2021 2:17 AM
Quoting the product page where you bought:

Quote

1. Soft start time setting: 000-100, slow start to 100% speed time is adjustable between 0-10 seconds, the default is 1 second.
2. Soft stop time setting: 000-100, slow stop time is adjustable between 0-10 seconds, the default is 1 second.
3. Rotation speed lower limit setting: 000-080, the minimum speed is adjustable between 0-80%, and is less than the maximum speed setting value, the default is 0.
4. Speed limit setting: 000-100, the maximum speed is adjustable between 0-100%, and is greater than the minimum speed setting value, the default is 100%.
5. Acceleration and deceleration value setting: 001 002 005 010 015 020 025 Each time you press the plus and minus key, the speed changes accordingly by 1%, 2%, 5%, 10%, 15%, 20%, 25%.


Or, same things in the attached image, from other source
...
renatoa attached the following image:
ccm6ds-k-new-arrival-wholesale-high-power-12v-80v-dc-30a-led-digital-display-pwm-hhojpeg_q50.jpeg
Edited by renatoa on 11/29/2021 2:24 AM
 
Ploni
Top  #84 Print Post
Posted on 11/29/2021 4:38 AM
Okay. Thanks.

If you can, please, I'll need some instruction later on on how to use/set this menu.

Now to connect the heat controller?
Edited by Ploni on 11/29/2021 5:25 AM
 
renatoa
Top  #85 Print Post
Posted on 11/29/2021 7:35 AM
Let everything as is, the defaults are ok.

Before he heater, did you managed to move some greens ?
What setting for your intended batch ?

Is the fan setting preserved when you cycle the power on-off ?
or you have to press start on controller every time when power on ?
Edited by renatoa on 11/29/2021 7:40 AM
 
Ploni
Top  #86 Print Post
Posted on 11/29/2021 7:44 AM
I figured out that I need 24 grams of roasted beans every day, six days a week.

I'd prefer to roast just once a week.

So . . . 24 × 6 = 144 grams per roasting session.

How much is that in greens?

Possible or will I have to roast twice weekly?
 
Ploni
Top  #87 Print Post
Posted on 11/29/2021 7:51 AM

Quote

renatoa wrote:

Is the fan setting preserved when you cycle the power on-off ?
or you have to press start on controller every time when power on ?


Yes, it is preserved.
 
renatoa
Top  #88 Print Post
Posted on 11/29/2021 8:09 AM
Average roast loss is 14% for omni-roasts (medium), 16% for espresso

This make about 25 grams loss for 144, thus 169 greens
You need a powerful SR800 machine for this load, with a popper you roast twice, 85 grams per roast is manageable for a popper.
 
Ploni
Top  #89 Print Post
Posted on 11/29/2021 12:42 PM

Quote

renatoa wrote:

how much is the speed percent required to move (barely) the intended load, 75 grams or whatever you want.


I don't see much movement (86 grams) even at 100%.
 
renatoa
Top  #90 Print Post
Posted on 11/29/2021 2:41 PM
Hmmm... a video would be helpful ...

I really hope you aren't so unlucky to start modding one of those weak poppers, rated for 30 grams only...
Can you weigh the popper cup, filled with green coffee ?
Mine take 48 grams, filled to the level, no tip.
 
Ploni
Top  #91 Print Post
Posted on 11/29/2021 2:54 PM
<Hmmm... a video would be helpful ...>
HOW DO I POST A VIDEO . . . ONLY ON YOUTUBE?

<hope you aren't so unlucky to start modding one of those weak poppers, rated for 30 grams only... >
1. Should't my popper replicate the others that you referenced as havingthe same structure & wiring?
2. What is the definition and the cause of a "weak" popper?
3. Can a "weak" popper be "strengthened" to blow a larger quantity of greens?
4. What means "unlucky"? Did I lose in the buy-a-popper lottery?

<Can you weigh the popper cup, filled with green coffee ?>
I only have 116 grams of green beans; can't fill the cup.
Edited by Ploni on 11/30/2021 4:20 AM
 
renatoa
Top  #92 Print Post
Posted on 11/30/2021 2:21 AM
Here there are some models that are rated as "30 grams" machines, signaled with a adhesive sticker on the cartoon box. The others are 60 by default. They looks identical, so without that sticker yes, is a lottery, indeed...

Never bought such model, so I don't know if it can be upgraded. Or what make it weak... could be returned units, unable to turn the standard popcorn load, who knows...

By "the cup" I understand the upper part in the attached image, in green ellipse.
Never seen such large cup, to fit more than 100 grams...

PS: netiquette state that writing with caps means crying.
No need to cry, we hear you... I am angry too Grin
...
renatoa attached the following image:
ha4991fa62bd5417b998ce6bb6f1516ccf.jpg
 
Ploni
Top  #93 Print Post
Posted on 11/30/2021 4:24 AM
Please excuse me. I didn't mean to "cry." I just wanted to differentiate between the quoted text and my questions.

Am I suppose to test the popper's blowing power by putting the greens in the metal cup or in the plastic cup?
 
renatoa
Top  #94 Print Post
Posted on 11/30/2021 5:14 AM
The plastic cup weighing is just to compare with mine.
Popper blowing should be done with beans in roast chamber, of course...
If 85 grams aren't moved at all, try lower loads until they are just "bubbling".
I would start with 60 grams, see if any move, then add more ... 5 grams, a tea spoon... and so on.
 
Ploni
Top  #95 Print Post
Posted on 11/30/2021 5:58 AM
A minimum of 63 grams is required to cover the vent openings in the
roast chamber.

Anything less does not move.

Even with 63 grams there's little movement.

Less with greater quantities.
Edited by Ploni on 11/30/2021 6:35 AM
 
renatoa
Top  #96 Print Post
Posted on 11/30/2021 7:10 AM
On my wife un-modded popper 63 grams are covering completely the openings, about 3-4 mm above, and are turning round, with no glitch.
80 grams are barely moving, but are moving, probably 30 seconds of drying will make them dancing.

Less beans, as a single layer on the bottom, some 10 grams probably, are instantly ejected out of can by the airflow.


Want to proceed further with the heating circuit ?
 
Ploni
Top  #97 Print Post
Posted on 11/30/2021 7:16 AM
Yes. Let's try to progress.

In the meantime I'm thinking to ask if there is another 230V popper that you can recommend to buy and modify?

Or perhaps another roaster build project that utilizes the electronic components that I have already?

(I would prefer a more robust roasting capability.)

What is the feasibility of doing away with this popper and adding my own fan and heating units?
Edited by Ploni on 12/01/2021 7:24 AM
 
zamunda
Top  #98 Print Post
Posted on 12/01/2021 7:27 AM
Hello,

Quote

Ploni wrote:

In the meantime I'm thinking to ask if there is another 230V popper that you can recommend to buy and modify?



I have good experiences with this model:
https://www.amazon.co.uk/Princess-Silver-Popcorn-Maker-Delux/dp/B000AOHTV4

Buy them second-hand for 5-10 Euros, has a 24V fan, run it with a 24V/4Amp laptop charger, can move 100-125 grs of beans.
Modification steps are the same as Renatoa explained...

Regards
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### A lot can happen over coffee ###
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Web
Ploni
Top  #99 Print Post
Posted on 12/01/2021 7:32 AM
Thank you, zamunda!

I'll see if I can find this model here in Israel (amazon says it's unavailable).

Do you know what is the wattage?
Edited by Ploni on 12/01/2021 7:43 AM
 
zamunda
Top  #100 Print Post
Posted on 12/01/2021 8:02 AM

Quote

Ploni wrote:

Do you know what is the wattage?


1200Watt.

Here you can see a picture of the modded popper:
https://raw.githubusercontent.com/zamunda-dev/zamundaroaster/main/images/fff.jpg

Regards
Edited by zamunda on 12/01/2021 8:10 AM
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### A lot can happen over coffee ###
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Ploni
Top  #101 Print Post
Posted on 12/01/2021 9:47 AM
Nice (& neat)!

Thanks.

Do you know:

1. if this model is still being manufactured or
2. if it is available generically under other brand names?
 
zamunda
Top  #102 Print Post
Posted on 12/01/2021 11:25 AM

Quote

Ploni wrote:

Do you know:

1. if this model is still being manufactured or
2. if it is available generically under other brand names?


Sorry, did several searches but could not find any similar models (new/used)...
########################
### A lot can happen over coffee ###
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Web
Ploni
Top  #103 Print Post
Posted on 12/01/2021 11:50 AM
I just purchased this unit brand-new on ebay.uk.

Thank you for your input, z.
Edited by Ploni on 12/02/2021 1:33 AM
 
renatoa
Top  #104 Print Post
Posted on 12/02/2021 7:38 AM
Of, let's move on and finish the actual setup, to have something to play until the other arrives from UK.

You have attached the last three wires you have to add for the heater be active.

The terminals 2 and 3 of the heater controller are tied together internally, so don't be worried that screw 3 is unconnected.
...
renatoa attached the following image:
adding_heater.jpg
 
renatoa
Top  #105 Print Post
Posted on 12/02/2021 7:39 AM
And now, the final act... the first roast Grin

Before starting any real test, beware ! if for whatever reason you hear airflow stop, immediately cut the main switch ! Else you have fire in some seconds.
Now, prerequisites for the first real test... some calibrating before proceeding with beans.
Start the machine, and if the heater display say 100, lower as fast as possible to 50, then set the airflow at maximum.
Insert thermometer probe in the bottom of roast can, and play with heater buttons to establish a temperature around 200 C.
When stable, note this heater value, then start increasing heater until you have 300C, note the value and lower the heater to zero fast, to cool the machine. Then stop air.

ALWAYS use this order ! Start with some air, at least 50%, no heater, then increase heater... do the job... decrease heater to zero, let cool, cut air ! Never heater without air !

I expect to have these values in the 50% range for 200C, and 75% for 300 C.

Weigh the beans, and start setting the heater to 200 C value.
After one minute of preheat load the beans, and start a timer.
If no movement help them with a wood spoon, they will start to move alone soon, in the next minute.
When the beans start to move freely, and no more need for your attention, start increasing heater in two-three steps to reach the higher heater value found during calibration, lets say add 10% after one minute, then again 10% after one minute, and last 5%, and let there, no more touch the heater.
About minute 3 you should see beans turning from they green hue to pale yellow, note the time when this turn happens. Don't wait the beans to become fully yellow, we need to know the moment when the color change begins.
If the beans movement become too violent, and they shows signs to jump out, lower the air, but slowly, not big steps, just enough to calm the beans dance.
We approaching the final act of the roasting... Probably about minute 6-7 you should start hearing cracks. Note also this moment, as soon as you hear the first burst of many cracks in a sequence.
Another sign of this moment is that the machine will start ejecting abundant snow of chaff, you should expect doing some mess in the room where you roast, be prepared for cleaning after.
From the moment when cracks begin you are the absolute master who decide the degree of the resulting roast, so be very focused on beans color, look, smell, everything...
About 1-2 minutes later you have to decide roast is done and finish it by fast cutting the heater to zero, from controller, keep button pressed continuously, will be faster than multiple clicks. If you want an even faster heat cutting, you can install a switch on the white wire of the heater.

That's all folks... have a good roast first experience ! Grin
 
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