I was very uncomfortable when all the tools were lying next to the printer in a mess. They often rolled under the printer, or fell and I lost them.

Therefore, I decided to make a universal holder for my ELEGOO Neptune 3 Plus 3D printer (this is suitable for all ELEGOO 3/4 printers). I do not know if I have collected all the tools that came with the printer, but they are the most useful and frequently used, so I made the holder for them.

It took me a long time to decide where the holder would be located: I wanted to place it on the lower profile, like a screen, but I didn't want to bother, so I chose the outgoing shoulder on which the plastic is held.

There is an M30 thread inside. And I decided to make it out of 2 parts, because I thought that the thread might not reach the end all the time in a horizontal position, and not tightening this big bolt is not good, since it will hold too weakly and unbalanced. Therefore, I made a separate part that just twists into the rack as it turns out, and the tool holder needs to be put on top more strongly. It turns out something like "fastening to the cap of a self-tapping screw" (like a crocodile), only with the force of friction. All this will allow you to have a universal removable structure that will perfectly hold in a horizontal position (evenness depends on how you position it) and not turn over under the weight of objects and physical exertion.

I also note that I made the tool holder purely for myself and from the very edge I made a large rectangular hole for my personal card reader (black in the photo is visible) I understand perfectly well that few people have the same one at all, so I made a second version of the holder model (with the postscript _USB). In it, I made a rectangular hole on the edge for a universal USB-A and moved it a little more and added a flat slot for a microSD-SD card reader (to look like an sd card with a microSD connector on the bottom), I thought that this would also be useful to many people.

I'm just putting this up in order to help someone if you were looking for how to put things in order on a working printer and if, like me, you didn't find another ready-made solution suitable both in terms of functionality and preferences. I did it quickly, in a hurry, so somewhere I may not have placed holes for tools or other defects exactly relative to symmetry, so do not judge strictly.