Bambulab P1S Reversible LED Frame Upgrade

Bambulab P1S Reversible LED Frame Upgrade

This upgrade allows the additional LED strip to turn ON and OFF exactly like the original Bambulab P1S lighting system.
The LEDs can therefore be controlled remotely both from the Bambulab App and directly from the printer display.

During testing, I verified that most LED strips long enough to cover the entire chamber perimeter exceed the maximum current that the original Bambulab P1S LED output can safely provide.

The original P1S board is not designed to supply more than approximately 300mA directly from the LED connector.
Connecting a high-power LED strip directly to the Bambulab LED output may permanently damage the printer mainboard.

For this reason, this project uses a MOSFET switching system that allows you to:

• safely use external USB power,
• drive much more powerful LED strips,
• maintain the original automatic ON/OFF functionality,
• avoid stressing or damaging the Bambulab electronics.

If the MOSFET does not switch correctly, connect the USB power supply negative wire to the negative wire of the original Bambulab LED connector.

Features

• Fully reversible installation
• No firmware modifications required
• Automatic ON/OFF synchronized with the printer LEDs
• Remote controllable from Bambulab App
• Clean integrated frame design
• Easy to assemble
• Compatible with Bambulab P1S
• Printable on standard Bambulab printers

Required Components

• 5V LED Strip
• MOSFET Module
• USB Cable
• JST GH 1.25mm Connector
• Printed Frame Parts

LED Strip:
https://short.do/6OJPh9

MOSFET Module:
https://short.do/ux417_

Assembly

A complete bilingual ITA/ENG PDF assembly manual is included with:

• wiring diagrams,
• soldering instructions,
• connector location,
• MOSFET wiring,

• and full step-by-step photo instructions.

  

Printing Notes

• Recommended material: PLA or PETG
• Print orientation already optimized
• No supports required for most parts

If you build it, feel free to share your make and improvements!

I design and create these projects for fun and for my own personal use.
I share them for free with the community, so please be kind with criticism and try to keep feedback constructive.

I design and create these projects for fun and for my own personal use.
I share them for free with the community, so please be kind with criticism and try to keep feedback constructive.

Designed by Francesco Landi