People complain about the thin walls. Yes they are thin, but these little boxes come out great on my DaVinci Pro. I added some support pads to the upper rear side to match the pads in the front. They stack very nice but it is harder to get the tray out.

My printer sits on a small wire rack cart. I made the holders to clip on the side of a cart shelf, and it will hold a bin box. I have 3 sizes of clips. On my bottom shelf there is a double row on the bottom. This one measures 32mm outside width. My top shelf measure 27mm. I have another wire rack shelf that measures 30mm. I made all 3 brackets.

I removed the handle from the tray. I included both styles.

I made 2 lids for the bin boxes. One is smooth and flat. It has a cut out in the back to accommodate the holder. The other one will let you stack another bin box on top of it. Basically, it's a 13mm tall bin box. No cut out on this one.