Gridfinity Niimbot B1 holder

Simple holder for the Niimbot B1 thermal label printer in Gridfinity 3x4 format. 

I found one here and printed it, but I really did not like it. It was too high (at least for the drawer I wanted to store it in) and too fat (with a lot of air), and it has that rim to stack other bins on top of it, which I think is useless with that big printer sitting in it. Size does not matter, but I like mine better. (It used 106g of filament instead of 169g, printing took 2:45 instead of 3:15, and it is 21 mm high instead of 39 mm. Best of all, I can store my B1 in the drawer I wanted it in.)