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New Fluid bed roaster- Help with how to control it
CamMor89
Hi!

I've just ordered parts to make my own fluid bed roaster, but i'm struggling on finding out how to control it.
I've seen several builds, some use TC4/TC4+ or other similar options.

What I would like to do in the future is having a raspberry pi or something similar connected to a screen and control/monitor the roasting without having the necessity to use a computer/laptop. But for now having to connect computer is OK.

What I would like to know:
What do you recommend as program for roast-logging?
What kind of setup is the most stable/supported by home roasters/roasters in general?
What items would be necessary to control my setup?

I have a 24v DC motor as blower with a builtin controller (possible to control over TC4 or similar) and 3,3kW heating element.

I'm not afraid of any programming or if I have to weld, as I have done some of that before.

I will upload pictures, and links to the items I've bought if people are interested, and if it is a success share a video :)
wbbh
Watching. Mine is manually controlled so I'm no help.
renatoa
The simplest and most affordable manual control choice is probably a digital display SCR you can buy from Amazon, something like this:
https://www.amazo...ef=sr_1_12

For temperature measurement and data logging Artisan compatible, the answer is Mastech MS6514, no soldering, no tinkering, just plug and roast.

If you need an all in one solution, measurement and control, probably the obvious path is something from the TC4 universe, built in house or bought. but... at this small scale I don't think you need computer control, roasting for own consumption doesn't require the repeatability/consistency as a production workflow, imo ...

As a personal preference, after some years of trying a lot of things, what I need the least near my roaster is a computer screen. Grin

If you are skilled with electronics, then a project integrating a MS6514 and the SCR with an Arduino/ESP board would be an interesting challenge.
Edited by renatoa on 06/13/2021 8:34 AM
CamMor89

Quote

renatoa wrote:

The simplest and most affordable manual control choice is probably a digital display SCR you can buy from Amazon, something like this:
https://www.amazo...ef=sr_1_12

For temperature measurement and data logging Artisan compatible, the answer is Mastech MS6514, no soldering, no tinkering, just plug and roast.

If you need an all in one solution, measurement and control, probably the obvious path is something from the TC4 universe, built in house or bought. but... at this small scale I don't think you need computer control, roasting for own consumption doesn't require the repeatability/consistency as a production workflow, imo ...

As a personal preference, after some years of trying a lot of things, what I need the least near my roaster is a computer screen. Grin

If you are skilled with electronics, then a project integrating a MS6514 and the SCR with an Arduino/ESP board would be an interesting challenge.


Thank you for your reply!
I'm almost done with my build, going to solder it on Thursday and test it then if it work as plannedGrin.
For now I will control it manually with a switch to turn on/off the heating element, and a "dimmer" for the motor to regulate airflow, but my plan is to get a solution where I can measure,control and log in the future so that repeatability wont be a problem. I work as an electrician, so powering the unit wasn't difficult, but finding a way to control it using for example ESP32, Arduino, TC4 haven't been easy as I'm not familiar with programming units like that. But I love learning new things, so If anyone can point me to a guide for how/what to connect and program I would be grateful!
renatoa
https://homeroast...rowstart=0

Good luck ! But is too much trouble for a such simple machine as a popper.
Playing these days with a Fresh Roast wannabe chinese machine, I can tell you that a simple "profile" as: start at 50%, switch at 1:30 to 60%, then start at minute 3 to 75% and let there to the end, gives identical results as the most sophisticate profiles.
Connecting a computer for such task is just... more love for tinkering, than for roasting and enjoying coffee Grin
Edited by renatoa on 10/12/2021 1:34 PM
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