You printed a dry box, but you can't or won't mount it to the wall behind your printer. Which leaves you with a fancy storage box. I wanted something that mounted to the printer without screws or zip ties. 

UPDATE: This is version 2. V.1 was the brutalist version. This tweak moves the platforms up slightly and thins the struts. This keeps the extruder from hitting the mount at max Z. The side with the bump inside the leg goes on the back side of the support. 

This is intended to be used with the Prusa dry box. 

This replaces the standard spool mount on the top of your printer. It slips onto the top rail of the MK3. It would work on other with the same size, but I only have my MK3+. 

You have two pieces, the flat part that supports the box and the covered part that holds the tab that sticks out of the side of the box. The tab part I refer to as the ‘hanger’ because it looks like an airplane hanger.

For stability I added a little nub on the inside of one leg to make it hold it a little better. The hanger has a notch for the number that is on the tab. No idea what it's for, but I left it.

To use put both pieces on the rail, position the flat side to wherever you want, slide the box in and your are done.

No supports are needed. I printed it on end and it was no problem. You can make it 1 piece but at 1.9cm tall, it is a risk. I trust glue more than gravity on this.

This is the first thing I have ever designed, and I know it's over engineered. Cheers.