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Here is a small DIY project, for a portable/bench-top power supply. We are not aiming for the best regulation, neither most power. But portability and bench-top estate optimisation.

This is based on the famous DPS3005 (about 25€)

Let’s 3D print an enclosure, found on Thingiverse:

And grab all the jelly beans needed:

Wire/crimp/solder:

Does work quite well:

With not much noise (static 100mA load):

And as I’ve this fancy portable solder iron with a bunch of li-ion cell:

It works on the road!