Power Vented!

[chopsaw]

There is a thread somewhere on the forum where the guy made a 3dprinted version of this contraption and you just simply insert the fan in the upward angle section that allows it to blow up the tunnel.

I believe this is the thread ?

 

[bill1]

When I tried it something like that the smoke gummed my little fan motor up.

I agree. I find it's usually better to blow on the input than suck on the output. Keeps fan blades/parts a lot cooler too, although for 60F cold smoking that's not an issue..

 

[Markl]

My previous design with the fan mounted on top of the flu got gunked up after several smoking sessions so I finally found the time to come up with a different design. I'll preface with that I'm no engineer, just something I thought that might work better. After hours of design work for the stl's, 38 hours later on the 3D printer in PETG, it was ready to try. So far in my initial testing it seems to be working well. It doesn't create such a strong draft to accelerate the burning of pellets or dust, just enough to assist the draft to prevent smoke lingering to long when the ambient temp isn't low enough. I used a 80mm AC variable speed muffin fan to control the draft and on high seems to provide a nice draft.

What do think?

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Fan ON

 

[tallbm]

My previous design with the fan mounted on top of the flu got gunked up after several smoking sessions so I finally found the time to come up with a different design. I'll preface with that I'm no engineer, just something I thought that might work better. After hours of design work for the stl's, 38 hours later on the 3D printer in PETG, it was ready to try. So far in my initial testing it seems to be working well. It doesn't create such a strong draft to accelerate the burning of pellets or dust, just enough to assist the draft to prevent smoke lingering to long when the ambient temp isn't low enough. I used a 80mm AC variable speed muffin fan to control the draft and on high seems to provide a nice draft.

What do think?View attachment 716690View attachment 716691View attachment 716692View attachment 716693

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That's some pretty cool stuff man! Looking forward to see what you cold smoke with it and how it all comes out :D