Putting the finishing touches on my new veg cabinet. Primer is drying, just needs paint.
This is my second DIY cabinet. This is what I learned.
They are heavy
They are ugly
When you estimate the cost, double it
When you estimate time, double it
When you think you got everything from the store you need, turn around and go back
Cutting a round hole in thin steel is a pain in the ass. Didn't want to spend $30 for a hole saw I'd use once. So, here is a tip if you find yourself having to do it.
Layout the fans the way you want them and trace perimeter with a pencil. Using a deck screw or similar, insert into the mounting holes of the fan and gently strike with a hammer. Trace a line diagonally from corner to corner to find the center. Use screw and hammer to mark the center. Use a compass to draw the circle.
Screw the sheet metal to a scrap piece of plywood just like you were mounting it. Drill a pilot hole large enough for a jigsaw blade to pass through.
Clamp plywood to a rigid surface and test that you can maneuver the saw around the circle without obstruction.
Run saw at full speed, but cut very slow.
Buy 2 pieces of sheet metal... lol
I only had one and I tried 3 different ways until the above worked. It looks like crap, but works.
The expandable foam around the electrical boxes was necessary to stop light leaks.
I use a Meanwell 12 volt 1 amp constant voltage driver for the two fans. The power cord runs through the wall to the receptacle on the inside so it can be plugged into the temp controller. Sucks the controller has a built-in photo-sensor. Would love a remote sensor, but those only exist for the large climate controllers.
I added some 3D models of the inlet and outlet light traps for those that are curious. Of course they all got painted flat black