I am building a wooden case for my printer.

3D Printing
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1

I am building a wooden case for my printer.
http://trilader.schroedingers-bit.net/blog/2013/11/17/a-better-case-for-my-3d-printer/

2

Your case looks quite nice, although complicated.
My route is actually replacing the side triangles with sheets of MDF. Cut to the right size, and carefully drilled, it directly replaces 6 rods, 12 nuts and washers. It also has vastly improved the stability of my printer.
Then you add on a back, top, and front. The sides have a cutout for the x axis. This will lose some heat, but if you really wanted to you could use longer threaded rods and move the sides to the outside.

3

Yes, my build plate is heated. The biggest concern is any plastic parts may soften. I am switching to 100% infill abs to combat this.
I think that with the sides slotted, it should get warm but not too hot, and prevent drafts.
I am still working on it, my previous iteration was laser cut, but I am moving to thicker wood.