LabPower - Lab bench power supply

Lab bench power supply based on https://www.thingiverse.com/thing:3831773 But since I didn't need all the features and I wanted a different design, less features but even more compact!

Bill of materials in pdf format Pack and go available in SW2019 format STEP available

Power supply hole pattern may be different, I adjusted it after making mine. I dremeled the PCB to fit.

https://www.ebay.com/itm/High-Power-AC-DC-Converter-110V-220V-230V-to-36V-5A-180W-Switching-Power-Supply/123275121813?ssPageName=STRK%3AMEBIDX%3AIT&\_trksid=p2057872.m2749.l2649

https://www.ebay.com/itm/DC-DC-Buck-Step-down-5V-36V-to-3-3V-6V-9V-12V-24V-5A-Converter-Voltage-Regulator/272834659085?ssPageName=STRK%3AMEBIDX%3AIT&\_trksid=p2057872.m2749.l2648 Stuck down with double sided tape

https://www.ebay.com/itm/DP50V5A-Digital-LCD-Display-Voltage-Programmable-Step-Down-Power-Supply-Module/163645634693?ssPageName=STRK%3AMEBIDX%3AIT&\_trksid=p2057872.m2749.l2649

https://www.ebay.com/itm/10Pcs-Speaker-Terminal-Binding-Post-For-4mm-Banana-Plug-Socket-Female-Connector/142631918119?ssPageName=STRK%3AMEBIDX%3AIT&\_trksid=p2057872.m2749.l2649

https://www.ebay.com/itm/12V-DC-80x10mm-Brushless-2-Pin-Cooling-Fan-LED-Heatsink-Marine-PC-CPU/193044009715?ssPageName=STRK%3AMEBIDX%3AIT&\_trksid=p2057872.m2749.l2649

2020-01-19 Update: Added individual STL files, thanks rpt007

Print Settings

Printer Brand:

Prusa

Printer:

I3 MK3S

Rafts:

No

Supports:

No

Resolution:

0.2

Infill:

whatever

Filament:

Prusament PETG light grey and orange

Notes:

.3mf available

See print bed layout for orientation

Post-Printing

This is at your own risc. Some electrical experience advised.

See pictures for assembly. and plan your assembly accordingly. I am too lazy to make an complete step by step guide .

Connect powercord to powersupply via the switch. Dont forget the strain the relief. connect buck converter and lab regulator to powersupply adjust output voltage of buck converter to less than the max rated voltage of the fan (12V in this one). disconnect from outlet. connect fan to buck converter. Keep wires as short as possible.

Category: Electronics