Benchtop Power Supply Housing

thingiverse

This is a housing for a benchtop power supply using the MingHe B3606 CC/CV module. Several variants of this module exist, but this one is designed for the 36V/3A 50x66mm version. It utilizes a Siemens SITOP PSU100S DIN Rail Power Supply as a DC source. Note that if you have to buy the Siemens supply new, this build may not be economically viable. However, these supplies are often available used on eBay at a reasonable price, making it still an interesting option for some users. Other DIN supplies might fit as well. The dimensions of the used supply are 70x126x126 mm. Three through holes for binding posts exist in this design. I decided to use the third hole to lead out the unregulated 24V/10A from the Siemens supply. Alternatively, this position could be used for PE. If you buy the design here, the Fusion360 source files are included in the download. Printing -------- The printing should be straightforward. Support is required at least for the front cutouts of the module as these need to be quite precise. The feet are ideally printed with TPU. An alternative that provides very good grip is to cut fitting pieces of silicone rubber hose and press them in. The light-guides for the modules LEDs are not strictly necessary but make them less directional. Print with transparent PLA or translucent white. For the raised lettering on the buttons, I switched materials from black to grey during printing. Materials -------- In addition to the printed pieces, you will need: - Three insulated binding posts. - A switched and fused IEC socket and two screws to mount it. - Two short M3 screws to fix the power supply module with the supplied frame to the housing. The screws that come with the module should work for this. - Cabling. This design is also available on cults3D: Power Supply Housing Happy Printing!