Chaff collector bypass, Cyclone chaff filter

Okay, Central Kentucky Coffee,

The short answer is that I am lazy…

The longer answer is that I enjoy the engineering challenges.
Here is a link to my current setup:

I had installed a bullet camera in the filter compartment of my Bullet and tried different ways of trying to remove the chaff from the filter basket. The camera showed that the filter basket never completely released the chaff. That told me that the air flow through the Bullet was changing and my recipes couldn’t adapt to the reduced air flow. The new R2 is supposed to have flow meters to detect and adapt the airflow if it detects a reduction in airflow.

I tried different solutions: changing out the filter compartment at every roast. Sticking a vacuum up the exhaust for the filter compartment.

My current setup with the DustTopper cyclone allows me to run many roasts (months) without stopping to clean the Filter compartment or the stainless steel mesh Filter basket. I have removed the SS Filter Basket. The chaff bypasses the filter basket and goes into the DustTopper and gets trapped there.

On my opening Roast World Dashboard page. Roast World says that I have over 800 roasts and have roasted over 1,000 pounds of green beans.

Now when I do back to back roasts, after dropping the roasted beans at the end of my recipe, I just hit the “back to back” button and then start preheating for the next roast. I don’t have to stop and clean anything.

I roast a lot of Natural -high chaff- beans and can go for more than 50 roasts without stopping to clean my chaff collector bucket.

Like I said: I am lazy and have OCD. (Obsessive Coffee Disorder) lol

I could easily change over to roasting commercially, but the financial reward is not enough compared to my day job. Maybe when I retire…

A couple of friends and former neighbors have asked me to sell them some roasted coffee. I had already spoiled them by giving them leftover samples and experimental recipe results. I used to tell them to slap the inside of their elbow and say: “The first taste is free” lol

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OCD? I think there’s a lot of that going around!!! :rofl:

Me

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Your design with the shop vac is great, but I think the removing every other impellor blade is what i needed! I’ve been running without a filter and it kept getting clogged with chaff. @billc can you share the STL for your baffle? what did you print it in? I may get it cut by sendcutsend.

Here is the STL for the baffle:

https://community.roast.world/uploads/short-url/zbKiTYaaD1KLHcf506pLyUbenzO.stl

Edit: I just used PLA. but it does deform a little bit after time from the heat.

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I printed mine in PPA-CF, cause it was already loaded in my machine, if you get it done in metal, you might have to file a little bit to get it to fully fit the ribs. Mine needed a little work to fit properly.

@billc Love your work, I have done something similar, inspired by you. It’s fantastic.

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