I was sick of having to change my whole tool organization when I got one more screwdriver or pair of pliers that needed to fit in "between" the rest.
Printing these in action: https://youtu.be/xe0wyCO6JM0
(using the timelapse arm: https://www.prusaprinters.org/prints/56641-prusa-mini-camera-orbiter-arm)
The entire story: https://buildcomics.com/hero/3dp-gets-a-camera-arm-upgrade/
So I decided to make a system that is modular, such that I can
I created two types, straight and angled. I used the angled to stow my tools "away" under a shelf above my work table. The square I use wall-mounted in my shed.
The fusion 360 files are (mostly) parametric, so you can use them to create you custom supports.
To fit in the 8x3mm disk magnets for the single and dual magnet mount, use a bit of CA glue or hot glue.
If PLA isn't strong enough for you, these prints should also work with PETG, ASA or PC just as fine.
The tolerances are quite large in these prints, if you want a "snug" fit, scale the thing down in the width-direction of the din-rail at your leisure.
There is a ton of different designs here, the pictures indicate example usages:
A 0.4mm nozzle works fine, I also printed a lot with 0.6mm for speed.
For the (angle) tube models, create some paint on support for the ends (or use "normal" support enforcers) so the ends are supported. See the last two pictures for an example.
Otherwise, everything will "bridge" fine, at least when printing
The author hasn't provided the model origin yet.