3DPrinting

Probably the best and safest method is to look into the foam used for camera bags. That is the most common customisable option I know of that is practical. You'll spend way less time and likely money if you cut foam to fit and pack everything.

Obviously, I'm a fan of 3d printing. Heck I'm beside my printer that is chugging away at a design I made today. However. I think it is a matter of using the right tool at the right time. IMO, big drawer filling organizers are not ideal for printing. I can make wood cardboard or sheet metal boxes much faster and cheaper than printing.

I could see myself designing a quick 2 rail holder with slots for each device to sit within, but that is going to be sloppy and likely wear poorly on the device. Best bet in my opinion is camera bag foam. If it is good enough for a half dozen $1k pro primes in a bag that gets banged around, it will work for some hand helds.

Someone else mentioned gridfinity, that was my first thought too. You can probably find modules for all of the things you listed already made and ready to print.

Once you start with gridfinity, though, you will never stop.

If it were me, I probably would not be able to resist the urge to make whatever inserts you develop compatible with a Gridfinity baseplate, because I am that kind of nerd.

To create perfectly console-shaped two dimensional inserts, or at least close enough, I would start by laying each system flat on a piece of paper and tracing around it with a narrow bodied mechanical pencil. Stick this in your scanner and make an image out of it, and then trace over that image at scale in the CAD software of your choice (FreeCAD is... free). This will automatically come with a built in amount of clearance in the amount of half of the width of the body of your pencil.

Just make a flat base with a wall sticking up maybe 2-3mm thick or more if you feel like it, to roughly half the height of each object. You can put some gaps in it if you prefer to have places to grab the item directly.

Also, I tried to upload pictures but kept getting an error.

If lemm.ee supports image uploads -- which they don't have to -- they may have size restrictions; my understanding is that the size restriction can be customized on a per-instance basis.

EDIT: They say in their sidebar:

https://lemm.ee/

• Image uploads are enabled 4 weeks after account creation
• Image upload limit is 500kb per image

Your account was created in 2023, so it's not the 4 week limit, but you're probably exceeding their (relatively low, as Lemmy instances go) image size limit.

Be kind of interesting to expose that data and let lemmy.fediverse.observer display limits per-instance.

EDIT2: I think that the largest image I've uploaded on lemmy.today is this high-resolution scan, which is 8 MB.

Foam, sharpie and a knife?