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Adjustable Buck converter case

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3D model description

Just a quick case I knocked up for the small adjustable buck converters. I use this for a Neopixel driver for a lighting project on my Tronxy X5S but it'll probably get used around my other printers after the success so far with the Tronxy.
There are two versions, the first design had no vent holes and if you start running these things around the 3 Amp mark, despite their claimed efficiency of 95^, they do seem to get pretty warm. To that end I made a small modification and made an 8mm hole in the side and lid opposite the IC on the circuit board. I attached a small heatsink to the chip also. There is a small inductor which also gets warm but hoping that just the ventilation will keep things under control. It never tripped out on over-temperature before but good practice says some air circulation isn't a bad thing.
You will require 4 x M3x16mm cap head screws to complete the box. A pair of 4mm countersunk holes are provided in the base for securing to equipment of your choice. I used M3 x 6mm countersunk and a pair of T-Nuts to secure to the 2020 extrusion on the Tronxy.

  • 3D file format: STL
  • Publication date: 2020/06/06 at 06:08

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