Thanks for your reply! The blower you linked won’t fit into my design, but I found one that might work, what do you think of this one?
What should I look for to make sure I’m getting something that will provide adequate pressure difference? The info I see for the one you linked was 285CFM, 0.8amps and 100 watts, but I’m not sure which of these values are going to correlate with what I need.
Thanks again!
So, there’s a cheap way to do this, and an expensive but cool way to do this considering your setup.. love the 3090 miniATX by the way, it’s just so min/max.
Cheap and kinda janky- something like this: VIVOSUN 4 Inch 195 CFM Inline Duct Ventilation Fan Vent Blower for Grow Tent https://www.amazon.com/dp/B01M7S46YZ/ref=cm_sw_r_cp_api_glt_fabc_XXHXGVK1JX9S94VHC4HF
It’s janky because you need to run it off a 120v supply - but, it will get air where you need it, and it’s quiet. 200cfm is more than enough.
Cooler, and more expensive (if you go all copper - which you should...) but looks like a lot of fun is something like this build LTT did (2:30ish) https://youtu.be/qflqUpxTZP4
Copper rods aren’t too expensive, something like this might do the trick: (10pcs 1.2X3.2X500mm Flat Silver Electrode Low Temperature Phosphor Copper Welding Rods HL201 Self-fluxing Alloy Soldering Brazing By Keaiduoa https://www.amazon.com/dp/B07TH8STP4/ref=cm_sw_r_cp_api_glt_fabc_V4XNGNDK7HHXH7DKWMQD) But I could see this getting futsy really quick if you’re not aligned really well. So you may want to go with a much larger single heat sink to cover the vram and go with bigger flatter copper rods - all about the surface area. Anyway, the copper should xfer heat well down the rods to ostensibly another heat sink where you can put a fan.
Man, that looks like a lot of fun actually.
Or you could bite the bullet and spend the 1kish to water cool the thing like I ended up doing.
Good luck - let me know what you end up doing!
Where to start with my update.
I began collecting the parts for the controller. I am using a BME280 for the temp and humidity sensor, this little screen for reading conditions at the chamber, 8 channel relay to control the various electronics, this fan and this filter for fresh air.
Here is an album of updated photos. The first is a blast gate controlled by a servo to control the fresh air flow. When the fan turns on the servo will open the gate and allow the fan to suck air out (more on that later). Next up is the freezer with the collar on. Its not put together properly yet but just a rough test fit shows its looking good. Then I have two inside shots of the chamber itself.
After talking with someone who understands air flow much better than I do, I changed the position of fan and filter as well as direction. The fan is going to suck air out from one side and the other will have the filter on it. This will keep the lid down, where as if the fan pumped air in it could lead to a pressure build up and the lid may crack open slightly. The elbows are put in so its not just the top air that is circulating. I am thinking of turning them so they don't point straight down but for now its good.
The inside shot show the slots made to hold up to 7 bars. I am going to seal in the collar with a piece of wood on the top then fill it with spray foam insulation and silicone it to the freezer.
The other thing that has changed since I last posted was that I was going to try to do the code myself. As I got parts in and tried to put something together it became clear there is no way I can do it. After searching around I put out a bid on upwork.com and now I am working with a friendly fellow from Nepal. We haven't gotten to far but I am excited by his proposal and he will be adding the ability for me to control it from a webpage.
Anyway that is it for now. I can see there isn't much activity on this post or another related post but I am going to follow through with the updates because in my searches for this project I cam across a lot of half finished ideas and projects. RemindMe! 2 months
Great thanks for the advice! I read about the light I posted in the micro grow sub so I thought it was okay but what you're saying makes sense. This is the only light I can find like you're saying for a 2x4' tent space using a quantum board and a fat heat sink. If you have another you'd recommend can you please link it? https://www.amazon.com/dp/B07TVD1Y3K/
I was going to get this tent/fan combo. https://www.amazon.com/dp/B073TWGZ2R/ https://www.amazon.com/dp/B01M7S46YZ/