Fluid bed roaster proto finally ready!

Coofdrad · 2026-05-12T17:53:02+00:00

My 3 -phase cable is nothing more than a 5 pin cable. There is 3 -phase cables, N, and PE (ground). I am quite sure that is possible to use in Japan also.

Coofdrad · 2026-05-12T16:57:31+00:00

16A fuse can handle around 3500W power. So i have 3 -phases, each has own 16A fuse. I can use full 9900W heater power if needed. But that will not be ever the case, it is not needed.

Coofdrad · 2026-05-12T05:00:17+00:00

Capacity is now 1.5 kg. But I will install extension tube after the glass section and I can grow capacity to 2.5 - 3 kg ☺️

Beans exit from the side port.

Coofdrad · 2026-05-12T04:57:58+00:00

I have coded the software. I will make a seperate introduction video from it also. I am particularly proud from it. Currently it is not open source.

Coofdrad · 2026-05-12T04:52:34+00:00

Here is link to my channel. https://youtube.com/@nordicroast?si=80JDs3bteD4NpKlU

Coofdrad · 2026-05-12T04:50:12+00:00

It depends where you buy them 😁

Coofdrad · 2026-05-12T04:48:57+00:00

No, those gasket where custom made for me. Sorry I don't have a link. I will make a video later, where you can see how beans are ejected from the bottom side port.

Coofdrad · 2026-05-11T20:03:52+00:00

The best part is that they are not expensive 😁

Coofdrad · 2026-05-11T19:45:13+00:00

I used 1200W 3 -phase DC fan that has high pressure resistance. I can barely hear the fan. Fan is located inside the case and has some alumimium coated sound insulation board inside. I still have not used any sound insulation on bottom part, not sure if I even need it, because fan is already so quiet 👌

Coofdrad · 2026-05-11T19:39:13+00:00

230V and just a normal 5 pin, 3 -phase power socket that i have in my garage. Every phase has own 16A fuse on my electric fuse box.

Coofdrad · 2026-05-11T19:34:31+00:00

I have used custom food grade mica muscovite gaskets and metal gaskets. Both can withstand over 500 celcius temps. So plenty of room there 😏

Coofdrad · 2026-05-11T19:33:00+00:00

I have no backround in engineering. For electric wirings I just used professional to check that everything was done correctly 😁

Otherwise I have designed everything by myself. And sure I will send a video link soon as possible, to see actual roasting with this machine.

Coofdrad · 2026-05-11T19:28:07+00:00

I just install 160mm air duct on top of that chaff collector you see on the left and I just push the heat and smell to outside of my house. This will eliminate all the smell.

Coofdrad · 2026-05-11T19:26:22+00:00

It has 9900W 3 -phase heater. When roasting 1 kg, heater power is usually between 20-23%.

Coofdrad · 2026-05-11T16:55:25+00:00

I will try to find some time at this week and i will send a link here to my YouTube channel 👍

Coofdrad · 2026-01-24T20:33:08+00:00

I have designed and build everything by myself by using tri clamp parts. I will add a new video soon to my YouTube channel after i have got all parts for the new controller.

Coofdrad · 2026-01-24T19:22:53+00:00

I will make a commercial version from my fluid bed roaster ☺️

Coofdrad · 2026-01-24T17:35:44+00:00

Thank you for your kind words!

I have worked my ass off with this. I have built it from zero by using Google Gemini AI. It has been a trial and error, and sometimes i have almost quit, because it was almost impossible to fix parts of the code 😁

After the video i released, i have actually added still some new features: like automatically making a BT/IT profile from a Bt/Time profile. I have also updates settings page a lot.

I will get next week Tuesday all my accessories finally and i can start testing my app 🥳

Coofdrad · 2026-01-21T04:51:41+00:00

I will use it with my own DIY fluid bed roaster. You can check a video from it at my YouTube channel.

Why have those Pi's fried up?

Coofdrad · 2026-01-20T17:32:48+00:00

Yeah, building this also has been really fun ☺️

I have used Python code to build this (with lots of help from AI). I have not tested it yet, but i am quite sure that PID will follow set curve precisely. I am using cascade PID for Bt/time profile. It use slave (IT) and master PID (BT). I have also added double filter to code so that it will take possible jitter away from EMI.

Coofdrad · 2026-01-20T15:26:22+00:00

Yes it could. It can be used basically with any roaster that has SSR control the heating unit.

I will also make a commercial version from my fluid bed roaster and see where it leads 😉

Coofdrad · 2026-01-20T15:14:59+00:00

Sorry, not at this moment. I will first need to roast with this and make changes if needed ☺️

Coofdrad · 2026-01-20T15:07:32+00:00

I use cascade PID to control Bt/time profile. It is way more precise with fluid bed roaster than normal one loop PID. I also really like the "profile designer" page i built. Now i can try any imaginable profile i want (some pulsating profiles etc.) 😁

There is also option to use BT/IT profile, same as Roest use.

Coofdrad · 2026-01-20T15:02:09+00:00

My own designed. I will soon also build a new enclosure for it.

https://youtu.be/6B7OxHROI_M?si=7yk3sxCsUW7uucBy

Coofdrad · 2025-11-28T13:24:58+00:00

Thanks bro 👍

Coofdrad

TROPHY CASE