Advanced PSU Control Box for Prusa LACK Enclosure (Relays + LED + 5V Power)
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A PSU housing for the Prusa LACK enclosure designed for advanced power management.
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Prusa Parts & Upgrades
- Licencja
- Creative Commons — Attribution — Share Alike
This is a custom-designed PSU and Control housing for the Prusa LACK Enclosure. I designed this to centralize all power management, handling the printer shutdown logic and lighting while providing clean 5V power to an external Raspberry Pi.
Key Features
External Pi Power: Internal mount for a 12V to 5V Step-down converter (Buck converter) to power a Raspberry Pi located outside the box. Two USB for this purpose (USB-A and USB-C)
OctoPrint Automation: Designed to fit two SSRs (Solid State Relays) controlled by OctoPrint:
AC Relay: Cuts power to the printer (for auto-shutdown plugins).
DC Relay: Controls the LED strip light.
Lighting: Space for a 230V AC to 12V DC Transformer to run LED strips.
Hardware & Assembly
Inserts: This model is designed for Brass Threaded Inserts. Using these is highly recommended for a secure fit, as screws directly into plastic may loosen over time with heat cycles.
Material: Printed in PETG or ASA. This is required due to the heat generated by the PSU and relays.
Wiring Logic The box splits the main input voltage. The AC relay toggles the printer's power cable. The 12V transformer powers the LEDs (switched via the DC relay). The Step-down converter provides continuous 5V power, which is routed out of the box to the external Raspberry Pi.
⚠ SAFETY WARNING: This project involves working with Mains Voltage (230V). Improper wiring can result in fire, shock, or death. Only attempt this if you are qualified or experienced with high-voltage electronics.