500W ATX PSU & DS3806 bench power supply box
Description
Customized version of https://www.thingiverse.com/thing:2938921 The stripped down 500W Coolermaster ATX PSU is fixed to the bottom and the DS3806 buck boost converter is screwed to a sidepanel leaving room at the front for all the banana plugs and displays and room at the back for the mains plug and the mains switch. The box is then meant to be placed vertically. Features - The front panel includes a toggle dial to monitor the power consumption per fixed voltages. - The back panel hosts the mains plug and an illuminated power switch towards the top for easy access. - The variable voltage from the DS has its own display uncoupled from the unit and has 4 large buttons on the front to replace the tiny ones on the unit itself. - There are 2 USB slots on the bottom powered by the ATX purple wire (so always on if the unit is on). One will deliver a regular 500mA charge and the other will have the middle pins linked to allow for higher rates. - There is also a 13cm quiet fan mounted to the right hand side. To improve the airflow suction, the airduct slots have been enlarged to 2mm. The inclusion of excavated lettering also allows fresh air in from behind the PSU. Options: - tempering the PLA at 80c for 30mins should make it a lot more heat resistant - Will add separate LED's to the frontpanel for the DS3806 status - Still pondering whether to add a switch for the DS3806 which doesn't really need to be on all the time. Photo's will be added as I go along. Parts list: - Coolermaster 500W (300W should also be more than enough for most uses but this was what I had lying around) - DS3806 buck boost step up/down DC to DC converter (not the most efficient model but also just what I had lying around) - 4x 12mm no lock push buttons - 8x banana plugs (4 red, 4 black) - 1x 4 position rotary switch - 2x female USB A plugs with screw terminals - 1x ammeter 10A 33V max - 1x KCD3 illuminated high power switch - 1x 10W resistor (to stabilize the 5V line)
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