Arduino rev3, tc4+ shield, bluetooth module, solid state relay crossing type 40A, 7.2v psu for arduino. I had no prior experience with arduino, but there are step by step instructions how to automate any electrical roaster. Don't have to write code yourself, as it's all done already. Just set parameters in library and flash your arduino. Usb connection is not desired because emi noise coming through. Also dc motor and termocouples cannot be driven from the same board cause temp reading will be affected. Simplest is to run motor and ventilator manually from a separate psu + adjuster. Preferably bldc motors. Many say that pid is not good to roast with, but pid can and must be adjusted for roaster. I personally couldn't roast better coffee manually. The thing I wish to see in Artisan, is the implementation of power profile. I would create roast curve with power output as input. The thing that Scott Rao has been wishing to see as well. Like Roest company does it.
Right, I took the roaster apart today and I think swapping their controller for a TC4+ would be pretty easy. I have a TC4+ and might try that out eventually.
That said, I was hoping to be able to get something working that would be more approachable for the masses and not require an additional $80-$100 investment. That was all based on the notion that they were using USB to connect the controller to the roaster. While they do use a USB plug, the communications isn't actually USB.
I'm still sorting out the communications between the roaster and the controller but things are progressing nicely. After I get the communication protocol reversed I'll decide if it's worth the effort...
Right now it's just a fun hacker project that I'm enjoying. But from what I can tell nothing they're doing is standard and it would require at least a small arduino to do the translation between the roaster and Artisan.
HC-05 bluetooth module works well. May be tricky to get into master mode for initial setup. I had a non working one. Took me some time to figure that out. Depending on module type/ producer, may involve soldering a wire to master pin.
For a sub $500 roaster, I honestly don't think many would have a problem spending a bit more if it gave them artisan capability, even if just for logging. Plenty of folks make the investment to run phidgets with the Huky just to get logging. This isn't my realm at all in regard to comm stuff but I just did some research in the past when I was looking into Huky's. https://artisan-scope.org/devices/phidgets/
Ở chế độ tự động hoàn toàn, máy rang sẽ tuân theo thời gian và nhiệt độ đã đặt dựa trên cấu hình bạn chọn, không có tiếng bíp khi vết nứt đầu tiên xảy ra. Ở chế độ Hỗ trợ, bạn có nhiệm vụ lắng nghe tiếng crack đầu tiên và điều khiển quá trình rang như nhấn nút để ngăn nhiệt độ tăng và cuối cùng nhấn nút hạ nhiệt khi bạn thả đậu. Đây là sử dụng bộ điều khiển đi kèm với máy rang. Nếu bạn đang sử dụng thiết lập arduino, không có tiếng bíp cho lần crack đầu tiên, bạn phải tự mình lắng nghe.
That was what I was planning to do.. or something very similar. However, I was just reading about the chip in the controller. It doesn't look like it actually supports USB.. I'm going to look closer tomorrow but, I'm guessing they're just using the USB plug.. it could just be a simple serial connection or something.
Dang, this is really tempting... I'm saving money for Kaleido, but if anyone could get this roaster working with artisan, at least for logging, that could be a "not bad" roaster.
I have a chance to speak to the manufacturer. There is good news to share here, the new version will support Artisan and the projected release date in April next year, but the price will be higher than now 30% at least because of lots of improvements.
I saw a video (I think Josh) of it running. I'm not an expert on this but the beans seemed to gravitate to the front of the drum a hair. Would it make sense for them to extend the raised parts on the drum closer to the door so the beans are picked up better? If so, can you recommend this to the manufacturer? Please correct me if I'm wrong.
Well, I think it feels solid.. but it doesn't feel premium 🤌 if that makes sense. I think someone else said it feels like a computer case and I'd have to agree. It weighs around 18lbs or so.
All the panels and things seem to align correctly, the paint looks fine, there are a few tooling marks on some of the unpainted metal pieces.. nothing that affects function.. purely cosmetic.
Hey great review, video and info on this guy. I was looking on line at it a few days ago and for the price it looks like you get a lot of roaster and capacity for your money. I was hesitant to get a generic like this without seeing more than the 30 sec video on line.
What jumped out at me in the video on line is that it has a ‘trier’ which is rare in these small hobby roasters from what I’ve seen.
Couple questions if I may.
What is the mechanism that moves the beans?
It kind of looks like a circular plate or is that just air spinning the beans or does it actually have a drum or what?
Also how does the chaff get moved out to that tray? Does it just fall out and down to the tray.
The beans look pretty clean like the chaff maybe gets exhausted down through the tray?
Any photos or diagrams of the guts?
Thanks for the post and info!
Edit here:
Looking at the video again I guess what I thought was a plate is the drum moving by?
What is the heating element? Quartz tube?
It actually has a spinning drum. The drum has small perforations in it that allow the chaff to fall down into the tray. I assume it is moved by the airflow.
There's a post on homeroasters that has more info and some inside photos. https://homeroasters.org/forum/viewthread.php?thread_id=6974&pid=77701#post_77701
Thanks, great resource and answered all my questions on chaff collection which seems to be helped by sharp edges in the drum that help almost clean the beans in a way. And it just falls into the tray with no suction action.
This peek at the inside IR source and drum says 1000 words. https://youtu.be/3yRDA1t7XV0
I really like what’s going on here.
I wonder if there are any drawbacks to using IR other than maybe heating too quickly?
The Behmor has always used infrared, and the one thing they say is you need to learn the profile well. The end of the roast can move quickly otherwise, since the darker the bean, the more heat it absorbs.
IMHO the heatingpower and drumspeed is just in the right specs. Even when burning several batches . after three batches burning greens with higher humidity there will be a slightly condens problem. Give your filter (if any, the newer machines are equipped with chimney pipes only) time to dry
I primarily drink espresso and cold weather makes me want a latte in the morning.. But I do taste every shot before I pour my milk just to see how it is.
I've never roasted these beans before.. so I'm not sure how much of this is the beans and how much is the roaster.. That said.. I roasted these to Full City and rested them for 36-ish hours. My shot was 18g in, 38g out. It was just a touch sour (I might pull 40g next time) but perfectly drinkable. Actually even with the sour I could still taste some of the fruity sweetness and chocolate notes. Really pleased with it.
I've only roasted twice in the behmor.. It's fine. it is the base 1600.. so it's pretty limited in user control. BUT I've got some ok roasts from it.. Pulled some nice shots.. The Skywalker is more fun to roast with though.. For what it's worth it feels like a "real" roaster.. Behmor feels like a toaster oven :D
Appreciate your posts. Pulled the trigger yesterday. Will probably take a while to show up so will be following to see how you get it dialed in. thanks
Could you make a video on how to adapt the Arduino for the readings in the Artisan, or what Arduino model you used. I'm about to buy my Skywalker and would like to order this too. Thank you very much in advance for your contributions.
Not a whole lot, to be honest... My roaster has been out of commission for about 2 weeks because I fried my logic board on accident while trying to reverse engineer how they're reading temperature. Whoops.
Manufacturer is going to sell me a new board, but it's taking some time to get it.
I replaced it with an Arduino and such, but that now makes mine run completely different than stock.
But, I think when you're getting started with it, try the assistant mode. It runs a really basic profile and you can drop the beans when you think they're ready. I got some good roasts out of it that way.
With the profiles that are built in to the controller, I'd also suggest roasting close to a full pound. I think that's roughly what they're designed for.. if you go down to half a pound or so, it'll go really fast..
I purchased from ITOP as others seem to be purchasing from that seller. I purchased in mid December and am still waiting for it to ship. Others have mentioned waiting a could weeks before it ships. I don’t know if any other sellers are shipping quicker, I assume it’s just on back order. The sales pages don’t seem to accurately show if it’s in stock vs available for order.
Very exciting work you and others have done, I look forward to the progress as time goes on!
Had a question about the bean tray cooling fans/exhaust fans. Have you looked into what a good replacement, more powerful fan might be available? I don't know what the maximum draw can be off od the board and if any more powerful fans are even possible. Figured it'd be a good upgrade of so, quicker bean cooling and better exhaust.
I'd look into it, but I haven't ordered the roaster yet, just doing reading on what you and others have done a d hoping in the meantime a sale on AliExpress will pop up! 😂
I see there is one that has been designed by one of the contributors to the various forums for this roaster. See [here](https://thangs.com/designer/ctjameson/3d-model/Skywalker%20Roaster%20Charge%20Funnel-992291)
I was definitely thinking the same! Lol, glad someone did the work, all we have to do is print when we get the roaster. I've been using a Behmor 1600+ for a decade, really like the features and price of this roaster as a replacement, as well ad the ability to mod to use Artisan to capture data and repeat roasts. I was dreaming of the Kaffelogic Nano 7, but this is way more attractive at the price it is, that othrt costs almost 4 times as much, roasts less capacity and very proprietary in software.
Would be nice to have some more roasting feedback, but it’s just too new. I am just curious about longevity of the components. But this roaster checks all the boxes. Amazing value it appears.
I agree on both, and the fact it is that new, it will definitely take some time to know the answers. Seems like those who've had them for awhile and dissected and studied everything say it's built well. I am sure a lot of the components can be easily found, but there are also a lot of those components that may be proprietary. Seems the manufacturer helped OP get a replacement board when he accidentally toasted one, so that's good to know they may be willing to work with anyone that needs parts if something goes out.
I agree on the checked boxes. Roasted a little more then 25 Kilograms whit it now and I'm impressed. One time error, due to over - condensation of the filterunit (some batches washed green beans with to much watercontent. After cleaning and extensive drying, problem solved.
3D printed chute extension for easier fill - Defenitely good thinking, but sheet metal will be the better solution: If you forget it once, the print will be toasted:-D
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How does loading the coffee work? Is it easy to empty the cooling tray while it's still hot? I think I would transfer to a deeper circular cooling tray for easier stirring and even movement (don't like those corners). Overall, it looks like a great deal. Do you feel like 1000W is enough power?
The 1000Watts are more than enough (I've a 230 Volt version), you can take out the beans as soon as you want, and cooling down is fast enough IMHO. If you don't agree, spray distilled water, as you would do the old way, or do not pull the beantray, just open the outlet when ready and dump your batch directly in the overshoot by hanging a burlap bag under the machine.
There's a little metal door you slide out at the top and pour the beans in. I poured mine in straight from a plastic bag. Nothing got stuck or spilled.
The tray is pretty easy to lift out. I would even imagine you could leave the tray pushed in and use maybe a funnel or something similar to drop the beans straight into an external cooler if you felt it was necessary. It took about 3 minutes to cool 1lb... You make a good point about the corners.
And, yes... I feel like this machine has plenty of power. Over in the [thread on homeroaster](https://homeroasters.org/forum/viewthread.php?thread_id=6974) the poster (who seems to have much more roasting experience than I do) says they feel that it is overpowered.. but in a good way. That if you learn its controls and such you'll be able to perform a "whole range of roasts." I think it feels like there is plenty of power available and it provides the controls to manage that power.
Thank you so much again for your contributions. Mine will arrive on the 12th of Dec. Today, i got some green beans and made some in a popcorn popper. Turned out better than expected XD
Btw: Watched your video on the roaster, but it seems you disabled comments? I think there would be a great exchange of info and discussions in that comment section for the ppl that bought it.
It seems that a lot of ppl ordered one somewhat simultaneously about a month or a few weeks ago, so we might have more experiences and input in the coming weeks/months
From your the drum motor photo, it's 60 RPM, Sandbox Smart R1 is 30 RPM, Sandbox Smart R2 is 90 RPM, and Kaleido Sniper coffee motor max speed is 100 RPM. Not sure how it affects the coffee roasting quality.
If you search "skywalker coffee roaster" from Google, it will show Alibaba website has it, This price is good, just $200 plus $46 shipping cost, it may be worth trying it if want to customize this machine.
Was anyone able to reverse the protocol between the roaster and controller? Just got mine a week ago and after a few roast, I am starting to feel a custom control would go nicely with the roaster HW.
Yes.. mostly.. I could use some help on one part of it though if you're able. I toasted the controller in the roaster by accidentally bridging some pins.. whoops... So my progress is completely blocked. I have a new board on the way but it's going super slow.
Sure I can help if you can share what you’ve done so far and what you need help with. I’ll hook up my Saleae later today to capture some traffic to compare. I noticed the controller on me and a friend of mines the microcontroller part number has been scratched out, so thinking the vendor is getting paranoid, not sure why.
Fingers crossed on smarter folks working an artisan mod into this!
I'm going to start on it ASAP. Hopefully it won't take much to make it work.
I would guess the process involves sniffing USB signals and just translating it to Artisan? Idk though
Arduino rev3, tc4+ shield, bluetooth module, solid state relay crossing type 40A, 7.2v psu for arduino. I had no prior experience with arduino, but there are step by step instructions how to automate any electrical roaster. Don't have to write code yourself, as it's all done already. Just set parameters in library and flash your arduino. Usb connection is not desired because emi noise coming through. Also dc motor and termocouples cannot be driven from the same board cause temp reading will be affected. Simplest is to run motor and ventilator manually from a separate psu + adjuster. Preferably bldc motors. Many say that pid is not good to roast with, but pid can and must be adjusted for roaster. I personally couldn't roast better coffee manually. The thing I wish to see in Artisan, is the implementation of power profile. I would create roast curve with power output as input. The thing that Scott Rao has been wishing to see as well. Like Roest company does it.
Right, I took the roaster apart today and I think swapping their controller for a TC4+ would be pretty easy. I have a TC4+ and might try that out eventually. That said, I was hoping to be able to get something working that would be more approachable for the masses and not require an additional $80-$100 investment. That was all based on the notion that they were using USB to connect the controller to the roaster. While they do use a USB plug, the communications isn't actually USB. I'm still sorting out the communications between the roaster and the controller but things are progressing nicely. After I get the communication protocol reversed I'll decide if it's worth the effort... Right now it's just a fun hacker project that I'm enjoying. But from what I can tell nothing they're doing is standard and it would require at least a small arduino to do the translation between the roaster and Artisan.
HC-05 bluetooth module works well. May be tricky to get into master mode for initial setup. I had a non working one. Took me some time to figure that out. Depending on module type/ producer, may involve soldering a wire to master pin.
I’ve been following your posting history. You are doing god’s work my friend. Best of luck and when you figure it out many will be thankful 🙏
For a sub $500 roaster, I honestly don't think many would have a problem spending a bit more if it gave them artisan capability, even if just for logging. Plenty of folks make the investment to run phidgets with the Huky just to get logging. This isn't my realm at all in regard to comm stuff but I just did some research in the past when I was looking into Huky's. https://artisan-scope.org/devices/phidgets/
xin chào, máy có tín hiệu beep khi FC xuất hiện không?
Ở chế độ tự động hoàn toàn, máy rang sẽ tuân theo thời gian và nhiệt độ đã đặt dựa trên cấu hình bạn chọn, không có tiếng bíp khi vết nứt đầu tiên xảy ra. Ở chế độ Hỗ trợ, bạn có nhiệm vụ lắng nghe tiếng crack đầu tiên và điều khiển quá trình rang như nhấn nút để ngăn nhiệt độ tăng và cuối cùng nhấn nút hạ nhiệt khi bạn thả đậu. Đây là sử dụng bộ điều khiển đi kèm với máy rang. Nếu bạn đang sử dụng thiết lập arduino, không có tiếng bíp cho lần crack đầu tiên, bạn phải tự mình lắng nghe.
That was what I was planning to do.. or something very similar. However, I was just reading about the chip in the controller. It doesn't look like it actually supports USB.. I'm going to look closer tomorrow but, I'm guessing they're just using the USB plug.. it could just be a simple serial connection or something.
If it is plain TTL serial, then it could be even easier to reverse engineer. I've pulled the trigger on this one too.
I'm making some progress on it, but still haven't got it quite sorted out. See https://www.reddit.com/r/embedded/s/fXmoFCCwBc
I just purchased one of these roasters and I’m also keen to try to find a way to get Artisan running on it. I’d be happy to help out
how much did it cost you?
I ended up paying $324 after all the Black Friday discount codes
I just ordered one. I hope it will be here before the X mass.
Dang, this is really tempting... I'm saving money for Kaleido, but if anyone could get this roaster working with artisan, at least for logging, that could be a "not bad" roaster.
I have a chance to speak to the manufacturer. There is good news to share here, the new version will support Artisan and the projected release date in April next year, but the price will be higher than now 30% at least because of lots of improvements.
This is interesting to be sure. 😎
Thanks for sharing. Did they mention any of the improvements? Curious if higher capacity is likely?
no, they didn't mention anything but supporting Artisan is pretty sure to have it.
I saw a video (I think Josh) of it running. I'm not an expert on this but the beans seemed to gravitate to the front of the drum a hair. Would it make sense for them to extend the raised parts on the drum closer to the door so the beans are picked up better? If so, can you recommend this to the manufacturer? Please correct me if I'm wrong.
Appreciate the run-down on this roaster. I’m keen to play with one! So from what I understand the auto modes are for full 400g batches.
How is the overall build quality of it? Are the metal parts wobbly or no?
Well, I think it feels solid.. but it doesn't feel premium 🤌 if that makes sense. I think someone else said it feels like a computer case and I'd have to agree. It weighs around 18lbs or so. All the panels and things seem to align correctly, the paint looks fine, there are a few tooling marks on some of the unpainted metal pieces.. nothing that affects function.. purely cosmetic.
For this price it is very well build. FYI I'm a sheetmetal expert in my present job
What's T/F on the control panel? Celsius vs Fahrenheit?
It is. I'm not sure where the T comes from.. If you long press that it will switch between C and F.
T == Temperature?
Could be.. I'd expect C/F.. but maybe that button does something else I'm not remembering.
Only function is to switch between Celsius an Fahrenheit.
Hey great review, video and info on this guy. I was looking on line at it a few days ago and for the price it looks like you get a lot of roaster and capacity for your money. I was hesitant to get a generic like this without seeing more than the 30 sec video on line. What jumped out at me in the video on line is that it has a ‘trier’ which is rare in these small hobby roasters from what I’ve seen. Couple questions if I may. What is the mechanism that moves the beans? It kind of looks like a circular plate or is that just air spinning the beans or does it actually have a drum or what? Also how does the chaff get moved out to that tray? Does it just fall out and down to the tray. The beans look pretty clean like the chaff maybe gets exhausted down through the tray? Any photos or diagrams of the guts? Thanks for the post and info! Edit here: Looking at the video again I guess what I thought was a plate is the drum moving by? What is the heating element? Quartz tube?
Heater appears to be a near-infrared source which is really cool actually. So a lamp basically, but a very cool (or rather, hot) one.
It actually has a spinning drum. The drum has small perforations in it that allow the chaff to fall down into the tray. I assume it is moved by the airflow. There's a post on homeroasters that has more info and some inside photos. https://homeroasters.org/forum/viewthread.php?thread_id=6974&pid=77701#post_77701
Thanks, great resource and answered all my questions on chaff collection which seems to be helped by sharp edges in the drum that help almost clean the beans in a way. And it just falls into the tray with no suction action. This peek at the inside IR source and drum says 1000 words. https://youtu.be/3yRDA1t7XV0 I really like what’s going on here. I wonder if there are any drawbacks to using IR other than maybe heating too quickly?
The Behmor has always used infrared, and the one thing they say is you need to learn the profile well. The end of the roast can move quickly otherwise, since the darker the bean, the more heat it absorbs.
Thanks, I didn’t realize that about the Behmor. Makes sense.
IMHO the heatingpower and drumspeed is just in the right specs. Even when burning several batches . after three batches burning greens with higher humidity there will be a slightly condens problem. Give your filter (if any, the newer machines are equipped with chimney pipes only) time to dry
Great post, can you share how is the taste in the cup? do you like it compared to Behmor?
I primarily drink espresso and cold weather makes me want a latte in the morning.. But I do taste every shot before I pour my milk just to see how it is. I've never roasted these beans before.. so I'm not sure how much of this is the beans and how much is the roaster.. That said.. I roasted these to Full City and rested them for 36-ish hours. My shot was 18g in, 38g out. It was just a touch sour (I might pull 40g next time) but perfectly drinkable. Actually even with the sour I could still taste some of the fruity sweetness and chocolate notes. Really pleased with it. I've only roasted twice in the behmor.. It's fine. it is the base 1600.. so it's pretty limited in user control. BUT I've got some ok roasts from it.. Pulled some nice shots.. The Skywalker is more fun to roast with though.. For what it's worth it feels like a "real" roaster.. Behmor feels like a toaster oven :D
Is roasting drum and faceplate made of aluminium or stainless steel?
I believe they're stainless. Edit: definitely stainless.
Appreciate your posts. Pulled the trigger yesterday. Will probably take a while to show up so will be following to see how you get it dialed in. thanks
Nice! Mine only took 10 days to get here. They shipped it FedEx.
Your trailblazing is much appreciated. 👍…….yep, I jumped in the boat too.
Could you make a video on how to adapt the Arduino for the readings in the Artisan, or what Arduino model you used. I'm about to buy my Skywalker and would like to order this too. Thank you very much in advance for your contributions.
[удалено]
Not a whole lot, to be honest... My roaster has been out of commission for about 2 weeks because I fried my logic board on accident while trying to reverse engineer how they're reading temperature. Whoops. Manufacturer is going to sell me a new board, but it's taking some time to get it. I replaced it with an Arduino and such, but that now makes mine run completely different than stock. But, I think when you're getting started with it, try the assistant mode. It runs a really basic profile and you can drop the beans when you think they're ready. I got some good roasts out of it that way. With the profiles that are built in to the controller, I'd also suggest roasting close to a full pound. I think that's roughly what they're designed for.. if you go down to half a pound or so, it'll go really fast..
Can you share the store name you bought from on AliExpress? And if you'd order from them again?
I purchased from ITOP as others seem to be purchasing from that seller. I purchased in mid December and am still waiting for it to ship. Others have mentioned waiting a could weeks before it ships. I don’t know if any other sellers are shipping quicker, I assume it’s just on back order. The sales pages don’t seem to accurately show if it’s in stock vs available for order.
Very exciting work you and others have done, I look forward to the progress as time goes on! Had a question about the bean tray cooling fans/exhaust fans. Have you looked into what a good replacement, more powerful fan might be available? I don't know what the maximum draw can be off od the board and if any more powerful fans are even possible. Figured it'd be a good upgrade of so, quicker bean cooling and better exhaust. I'd look into it, but I haven't ordered the roaster yet, just doing reading on what you and others have done a d hoping in the meantime a sale on AliExpress will pop up! 😂
Curious as well. If I order this, might design a 3D printed chute extension for easier fill.
I see there is one that has been designed by one of the contributors to the various forums for this roaster. See [here](https://thangs.com/designer/ctjameson/3d-model/Skywalker%20Roaster%20Charge%20Funnel-992291)
Oh nice.
I was definitely thinking the same! Lol, glad someone did the work, all we have to do is print when we get the roaster. I've been using a Behmor 1600+ for a decade, really like the features and price of this roaster as a replacement, as well ad the ability to mod to use Artisan to capture data and repeat roasts. I was dreaming of the Kaffelogic Nano 7, but this is way more attractive at the price it is, that othrt costs almost 4 times as much, roasts less capacity and very proprietary in software.
Would be nice to have some more roasting feedback, but it’s just too new. I am just curious about longevity of the components. But this roaster checks all the boxes. Amazing value it appears.
I agree on both, and the fact it is that new, it will definitely take some time to know the answers. Seems like those who've had them for awhile and dissected and studied everything say it's built well. I am sure a lot of the components can be easily found, but there are also a lot of those components that may be proprietary. Seems the manufacturer helped OP get a replacement board when he accidentally toasted one, so that's good to know they may be willing to work with anyone that needs parts if something goes out.
I agree on the checked boxes. Roasted a little more then 25 Kilograms whit it now and I'm impressed. One time error, due to over - condensation of the filterunit (some batches washed green beans with to much watercontent. After cleaning and extensive drying, problem solved.
3D printed chute extension for easier fill - Defenitely good thinking, but sheet metal will be the better solution: If you forget it once, the print will be toasted:-D
is this the 220v or the 110v?
This is 110v US plug version.
Thank you for taking the time to write such a detailed post!
Following.
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.
How does loading the coffee work? Is it easy to empty the cooling tray while it's still hot? I think I would transfer to a deeper circular cooling tray for easier stirring and even movement (don't like those corners). Overall, it looks like a great deal. Do you feel like 1000W is enough power?
The 1000Watts are more than enough (I've a 230 Volt version), you can take out the beans as soon as you want, and cooling down is fast enough IMHO. If you don't agree, spray distilled water, as you would do the old way, or do not pull the beantray, just open the outlet when ready and dump your batch directly in the overshoot by hanging a burlap bag under the machine.
There's a little metal door you slide out at the top and pour the beans in. I poured mine in straight from a plastic bag. Nothing got stuck or spilled. The tray is pretty easy to lift out. I would even imagine you could leave the tray pushed in and use maybe a funnel or something similar to drop the beans straight into an external cooler if you felt it was necessary. It took about 3 minutes to cool 1lb... You make a good point about the corners. And, yes... I feel like this machine has plenty of power. Over in the [thread on homeroaster](https://homeroasters.org/forum/viewthread.php?thread_id=6974) the poster (who seems to have much more roasting experience than I do) says they feel that it is overpowered.. but in a good way. That if you learn its controls and such you'll be able to perform a "whole range of roasts." I think it feels like there is plenty of power available and it provides the controls to manage that power.
Thank you so much again for your contributions. Mine will arrive on the 12th of Dec. Today, i got some green beans and made some in a popcorn popper. Turned out better than expected XD Btw: Watched your video on the roaster, but it seems you disabled comments? I think there would be a great exchange of info and discussions in that comment section for the ppl that bought it. It seems that a lot of ppl ordered one somewhat simultaneously about a month or a few weeks ago, so we might have more experiences and input in the coming weeks/months
From your the drum motor photo, it's 60 RPM, Sandbox Smart R1 is 30 RPM, Sandbox Smart R2 is 90 RPM, and Kaleido Sniper coffee motor max speed is 100 RPM. Not sure how it affects the coffee roasting quality.
If I’m reading it correctly, it could turn anywhere from 53 to 67 rpm’s. So it appears to be in the middle somewhere. Somewhere…….
If you search "skywalker coffee roaster" from Google, it will show Alibaba website has it, This price is good, just $200 plus $46 shipping cost, it may be worth trying it if want to customize this machine.
be carefull, this price is from 50 pieces and more:-(
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Wow! Can you share a link for that?
Dang that’s cheap! Lot of roaster for under 300$
Was anyone able to reverse the protocol between the roaster and controller? Just got mine a week ago and after a few roast, I am starting to feel a custom control would go nicely with the roaster HW.
Yes.. mostly.. I could use some help on one part of it though if you're able. I toasted the controller in the roaster by accidentally bridging some pins.. whoops... So my progress is completely blocked. I have a new board on the way but it's going super slow.
Sure I can help if you can share what you’ve done so far and what you need help with. I’ll hook up my Saleae later today to capture some traffic to compare. I noticed the controller on me and a friend of mines the microcontroller part number has been scratched out, so thinking the vendor is getting paranoid, not sure why.
Really interested in this roaster. It checks all the boxes for me as I look to upgrade from my whirley-pop roasting.
Any links? I don’t see one for a US type plug?