I Build a 10 Inch Mini Rack from Aluminium Extrusions

(louwrentius.com)

23 points | by louwrentius a day ago ago

6 comments

  • addaon a day ago ago

    Why use the original power bricks, with the space claim and awful routing, instead of just going to a single dc/dc... either directly if no individual power control is needed, or to a relay block or switch block if automated / manual individual control is needed?

    • louwrentius 21 hours ago ago

      I haven’t found a solution for a single DC power supply I can connect to the systems. Maybe I have to solder something together myself.

      • addaon 11 hours ago ago

        Meanwell is the standard answer for this sort of thing; something in the SD-500 family or sized/optioned as you need. You'll have to do the connectors yourself; you may be able to find junction-post-to-barrel-plug leads of the right size and length off the shelf, but I'd be surprised, and soldering them would take less time than shopping for them.

  • bartvk 18 hours ago ago

    It would be cool to design custom aluminum brackets for the fans. However I found that although ordering 3D prints is very cheap, using (for example) PCBWay for CNCing something out of aluminum is very expensive.

  • TacticalCoder a day ago ago

    This looks good: I've got three HP NUCs like in TFA + three Pi on my desk (got more than that altogether) and it's indeed a cable mess.

    > Aluminium extrusions are bars with a groove on all four sides. These bars have a standard format and you can slide all kinds of equipment in there and lock it in place with set screws. It seems to be used a lot for home made 3D printers, CNC machines and whatnot.

    They're also called "T-slot" and 80/20 (from the brand).

    https://en.wikipedia.org/wiki/T-slot_structural_framing

    Plenty of free 3D models for tiny parts for those that can be printed at home (careful though: most won't hold much weight).

  • localdeclan a day ago ago

    Awww, its so adorable