As with the nozzle insert (I posted there, too) I hope you are as well open for suggestions on your tool tray. As with the nozzle tray the tool tray is also incredibly wasteful - even more so. The cutout for the large tool starts at 10mm height. Let's assume a 2mm thickness of the bottom, which is plenty sturdy (your storage box only has 0.8mm and that's fine). That's 8mm of wasted time and material. To demonstrate in the slicer I cut off 8mm from the bottom and sliced only that chunk with 0.4mm nozzle, 0.2mm standard profile, 10% infill, 2 walls. Wasted time = 36m, wasted filament = 22g. Thats leads to the next point: where's the cutouts for at least the spare nozzle wiper and the 2 spare filament cutter blades - and ideally also the oil tube? You have plenty of unused space. So instead of wasting time+material make some additional cutouts. I know why you set the tray that high. As with the nozzle tray it's because you need the width. The width is larger the higher you go, because one wall of the box is slanted at an angle of about 3 degrees. That's also the reason that the nozzle tray comes first, because you need the tray tool higher up because the Bambu allen key tool is so wide. But I think you set the height at where it sits now too high. Let's calculate: The large Bambu allen key tool is 50.8mm in width (measured with caliper) So you need - let's round it to - 51mm width to accomodate the tool. So to check at which height that would be the case I used the Slicer as a measuring tool. I inserted a 51mm cube and aligned it with the straight wall of the storage box. So the height at which the cube comes into contact with the slanted wall is the height that has to be met at a minimum so that the Bambu tool fits. Well, specifically only the metal allen key part because that sticks out of the plastic handle. The Bambu tool is 10mm thick, the allen key is 2mm and sits in the middle So from the bottom that's 4mm until you reach the metal part. These 4mm can be subtracted from the determined height to know where the cutout for the Bambu tool has to start. Please see the pictures to see what I'm talking about. The height I determined is 30.0mm (give or take - I just checked visually in the slicer and didn't calculate) Let's collect some more measurements: thickness bottom of underbed storage box: 0.8 mm total thickness nozzle insert top (14.7) + bottom (10.0): 24.7 mm So that's 25.5mm already. then you have the 4mm until you hit the metal rod = 29.5mm So you already almost hit the required height and don't have a bottom yet. So you could even go as low as 0.5mm for bottom thickness. Let's do 1.5-2mm and you can shave off that 8mm wasted height on the tool tray. Or you distribute the savings to the tool tray and the nozzle tray. Because as I wrote in the comments of the nozzle tray that also has 4-5mm wasted height at the bottom. Maybe make both 3mm thick to be consistent.

great design easy print profile thanks for sharing

Small torx does not fit but it sits on and gives more support for the tray.

fit well

Fast and clean print with two minor issues. The slot for small wrench is a bit to short, and infill pattern of grid is noisy.

everything fit together

Smaller Allen wrench didn't fit in the box.

small wrench is not perfectly fit..

The tools fit too loose for my taste.

had to add an additional modifier to extend the space for the smaller hex driver. and also cut the unnecessary height to save some material.