Nice read Panhead,ty for the 411.Oh yea my cross is a female and budding.

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http://www.rollitup.org/indoor-growi...icy-fruit.html

Wow thanks for the super discription. that was really helpful. I really gives me a good idea of what im gonna do. thanks for the wisdom

This was really useful. I am building an bud dryer that hooks to my flower or veg intake via a 6" duct. This way my current carbon exhaust kills the odors and i dont need a new fan and filter.

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Current Grow - AK47 Day 33 Flower Grow Cabinet Build First Grow in new Cabinet C99 X A11

I really like this ceramic heater idea, it can be put on the low intake side of the bin with maybe a 90 degree angle to eliminate light. 4" exhaust fan on the high side with either a carbon filter or a dryer sheet.

Great Ideas in this thread, it's really going to help me to build mine.

Panhead, what type of system did you work out for the racks? I'm looking forward to see pictures of what you ended up with.

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topsy turveys are where it's at!

I kept the exact shelf design as pictured,they work too well the way they were to chage them,on my other dryers i added a 4th shelf along with swapping out the 4 inch fan to a 6 inch fan to make up for the 4th rack.
I also covered the light bulb with a rain cap allmost exactly as another member posted a picture of earlier in the thread.

Ive got the system down to 3 days perfect drying with the 4 shelf dryers that are using the 6 inch intake fans,the bud comes out the dryer smelling like killer smoke with nothing but skunk smell & ready to smoke down happily .

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My 4 day $40 bud dryer,http://www.rollitup.org/grow-room-de...ml#post2087235My DIY $3 Carbon filter,http://www.rollitup.org/grow-room-de...on-filter.html

How much can you dry at a time?

Looks awesome! Thanks for the post

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Hopin' to grow.

It depends on what type bud is drying,if its all fat ass colas the weight goes down,if its smaller buds the weight goes up,the finished weights are usually between a qp & a half pound every 3 days.

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My 4 day $40 bud dryer,http://www.rollitup.org/grow-room-de...ml#post2087235My DIY $3 Carbon filter,http://www.rollitup.org/grow-room-de...on-filter.html

Thanks for the ideas panhead. This is my dryer based partly on your design. I only have 2 shelfs, I wanted to ensure good airflow and easy to remove shelfs so i can flip easily. I used pc fans so I can spread the airflow better.

You say you don't like pc fans cuz of the low airflow but if you look at the specs for a 4" pc fan, they are around 50cfm @ 12V. I have 2 x 4" for the exhaust which is ~100cfm, and so far I have 4 x 1.5" for the intake but I might add 2 more which are 5-10cfm each. I can boost the voltage up to 18V if I need more flow or drop the voltage for less. I'm looking into a variable voltage power supply that I can use to adjust the airflow easily, the one I have only does 300mA which works great for my hash tumbler. Current draw at 12V is ~ 800mA theoreticaly.

I have a 4" inline vent accelerator like you have, if you look at the specs (http://www.homedepot.com/webapp/wcs/...6X-_-100073963) it states the airflow in free air is only 40cfm and 80cfm "boosted". So I'm useing it for my room exhaust but I have 2 4" pc fans boosted to 18V inline also, the airflow should be over 100cfm and it definantly feels like it.

I also might add carbon filters behind the exhaust fans if i need them. I can't wait to use it...

Hope you like my design, any tips or suggestions I would like.

Looks like you've got things covered pretty well,air flow will not be a problem in your dryer thats for sure,what are your plans on adding heat to the dryer or the air comming into the dryer ?

I started out without adding any heat & the dryer worked very well but it wasnt fast enough for my needs,after adding heat i knocked a full day off drying time & was able to add a 4th shelf & still stay within the 3 day drying range i was looking for.

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My 4 day $40 bud dryer,http://www.rollitup.org/grow-room-de...ml#post2087235My DIY $3 Carbon filter,http://www.rollitup.org/grow-room-de...on-filter.html

I was going to try and avoid adding heat if I could. If I need more heat I'll just have to put the tub into a warm room or near the heater. I'm not to concerned about cutting a day or so off drying. I just needed somewhere with good airflow thats dark. I thought with your design I could get better, more consistent airflow to ensure a more even dry versus hanging them upside down in a closet with 1 fan on them. I want to avoid mold at all costs.

One thing I was curious about was if hanging upside down hand any benefits to laying down.

Also, the only problem I see with my design is light leaks through the fans. I think if I put a piece of cut to fit carbon filter on each fan it should block most light leaks and provide nice clean filtered air for my buds to dry in. Would these filters also catch mold spores or would it need to be a HEPA filter?

I was also wondering what the minimum temp for drying would be. i understand that every degree below 82 slows drying but with temps outside at -20, 82 is hard to hit.