New Dry Curing Chamber Build...42cu.ft. stainless double door

[JC in GB]

Will likely also need a DC PWM modulator so I can reduce the exchanger fan speed to dial it in where I need it.

0.68US $ |Dc 1.8v-35v 2a 3a 5a 10a 30w 80w 90w Pwm Motor Speed Controller Low Voltage Motor Speed Controller Pwm Adjustable Drive Module - Integrated Circuits - AliExpress

Smarter Shopping, Better Living! Aliexpress.com

www.aliexpress.com

This PWM controller will run your fans at what ever speed you need them. It doesn't specify the PWM frequency so if the fans don't turn, put a capacitor on the PWM out and your fans will turn. (This is if the PWM out is low frequency.)

JC

 

[indaswamp]

Awesome! Thanks!

 

[JC in GB]

Here is my design for the DC switch. Will have it built by end of day.

 

[indaswamp]

0.68US $ |Dc 1.8v-35v 2a 3a 5a 10a 30w 80w 90w Pwm Motor Speed Controller Low Voltage Motor Speed Controller Pwm Adjustable Drive Module - Integrated Circuits - AliExpress

Smarter Shopping, Better Living! Aliexpress.com

www.aliexpress.com

This PWM controller will run your fans at what ever speed you need them. It doesn't specify the PWM frequency so if the fans don't turn, put a capacitor on the PWM out and your fans will turn. (This is if the PWM out is low frequency.)

JC

Would a 2Amp PWM be enough? I can't imagine 4 exchanger fans being more than 2 amps...

 

[JC in GB]

Would a 2Amp PWM be enough? I can't imagine 4 exchanger fans being more than 2 amps...

2 Amp should be plenty to run your fans.

 

[indaswamp]

I am getting excited now! I can see it coming together in my head! I think I will position the two evidry 1100 dehumidifiers one in each front corner, with the auxillary fans on each side near the front close to the ceiling blowing up at an angle to the back...should have good airflow.

 

[JC in GB]

I am getting excited now! I can see it coming together in my head! I think I will position the two evidry 1100 dehumidifiers one in each front corner, with the auxillary fans on each side near the front close to the ceiling blowing up at an angle to the back...should have good airflow.

I love planning and building stuff. Would love to be around to help.

 

[indaswamp]

There is also the possibility of removing the heat side of the peltier module from the the chamber by fabricating an external box with a thin aluminum wall on one side. Use a peltier module with fins and fans on the cooling side. Pipe chamber air into the box and then back into the chamber. Let the fins on the peltier unit condense moisture like a peltier dehumidifier, but without the heat being added to the chamber. I would use a small ice chest, cut it down to the size I need and fabricate an aluminum lid, Mount the peltier module in the aluminum plate. Insulate the plate around the module. Tilt the ice chest so water flows to one corner. Install a drain tube.

Cold moisture removal.....

 

[JC in GB]

There is also the possibility of removing the heat side of the peltier module from the the chamber by fabricating an external box with a thin aluminum wall on one side. Use a peltier module with fins and fans on the cooling side. Pipe chamber air into the box and then back into the chamber. Let the fins on the peltier unit condense moisture like a peltier dehumidifier, but without the heat being added to the chamber. I would use a small ice chest, cut it down to the size I need and fabricate an aluminum lid, Mount the peltier module in the aluminum plate. Insulate the plate around the module. Tilt the ice chest so water flows to one corner. Install a drain tube.

Cold moisture removal.....

Yes, I was going to suggest that but didn't know if that was out of the realm of possibility for this build. Also, if you are thinking of doing something like that, Aliexpress has TEM refrigeration modules that would work just fine as a dehumidifier. I was looking into doing it this way at first but then decided that the water/radiator method would work better for my application.

I was going to buy an Everdry dehumidifier for my cabinet but now I may reconsider and build my own TEM dehumidifier unit.

Now you got me thinking on another project..

JC

 

[indaswamp]

I thought the idea was sound....I will see how it goes with testing first, but if I'm going to fill the chamber up then this might be the route I go. When I get the unit build, I'm going to hang a bunch of wet wash towels in the chamber and see how it responds to high water evaporation rates.

 

[Steve H]

Excellent score Keith! I'm sure you'll get a lot of use from it.

 

[indaswamp]

Excellent score Keith! I'm sure you'll get a lot of use from it.

Thanks Steve!

 

[Fueling Around]

My chances of making a cure cabinet are pretty low.
But it is exciting watching you go thru the build process.

 

[indaswamp]

JC in GB

something like this:
XD-35 Thermoelectric Plate Module Cooling System DIY Kit for Small Space Cooling

60W....should offer enough cooling for dehumidification.

 

[indaswamp]

Well,my excitement is tempered now... Went to place my order with aliexpress and the first two items, no problem. next two items, I get a message that the payment has been stopped by the card issuer. What the heck???? So I called the bank, funds are good...no issue there. The debit was issued and immediately returned. I'm sure hoping that this is not with Visa shutting off payments to China now. That would be a major impediment to this build. I will look into this more next monday, but as of now, I am at a stand still on the cooling system. I did pick up some heavy duty casters at Harbor Freight today. I am going to build a frame and put the casters on it so I can roll the freezer around.

 

[indaswamp]

Finally got all the components removed. That compressor assembly is HEAVY! I had to use two 2" x 1/4" wall x 8' aluminum square tubing I had laying around from another project to make a slide to ease the compressor to the ground. Had to make two softeners from cardboard and secure the tubing in place with straps. Once I unbolted the assembly and disconnected the high and low pressure tubing lines, It was fairly easy to slide it down to the ground. That sucker is over 100# easy!

So much space!!

I had a friend hanging out with me this morning...He's doing that head bob thing they do...looking for a mate.

Ignore the oak leaves. They are falling heavy right now. I'll vacuum then up with the leaf blower and use as mulch in the garden bed once they all fall. Been windy so they are really coming down.

 

[indaswamp]

Well, for some reason Aliexpress will only let me order two items at a time in one day. I'll wait and order more parts tomorrow. Anyone else ever have this issue?

 

[indaswamp]

That would be a really good thing to be able to move that heavy sucker when needed. I would sure want to have locking wheels. Awhile back I saw some heavy duty looking caster wheels at Tractor Supply might be worth a look. Maybe put them on before you do much else to make it easier to work on.

Thanks for the recommendation on Tractor Supply, they had exactly what I needed! Bought 4 swivel locking casters 250# load rating. Will order aluminum angle Monday from my buddy. He may have a piece of 5" channel on hand for the caster mount plates.

 

[crazymoon]

IDS, Nice score and great project!

 

[indaswamp]

I figured out what the problem was on aliexpress... I have to re-login after each purchase for security reasons. If I do that-payments go through. Small hassle, but at least I have all the parts for the cooling system ordered now....Woohoo! Now the wait for parts to arrive. I have things I can do in the mean time while I wait....