Cleaner Hardware. Smarter Engineering.

Powered by an STM32F072 MCU equipped with an onboard ADXL345 accelerometer and TMC2240 extruder driver, the O2S brings a new level of integration to your 3D printer. It supports 12/24V part cooling fans (2-, 3-, and 4-wire), 12/24V hotend fans with RPM feedback monitoring, NTC / PT1000 thermistors, I2C device probing and scanning, X-Stop input, and RGB lighting output. It also features protected USB connectivity and an onboard USB expansion port for bed scanners, nozzle cameras, or smart USB sensors.

Key Features

• Built for Orbiter: Optimized for Orbiter V2 and V2.5 geometry, respecting every millimeter of space and simplifying cable routing.
• All-in-One Control: Combines MCU, ADXL345 accelerometer, extruder driver, and multiple I/O interfaces at the toolhead — no more back-and-forth wiring.
• Smarter USB Integration: Protected USB link to Raspberry Pi, plus an onboard USB port for plug-and-play expansion.
• Designed to Last: Engineered not just for integration, but with robust electrical protection and thermal management for reliable, round-the-clock operation.

Designed for the Orbiter Ecosystem

The Orbitool O2S is purpose-built for Orbiter V2 and Orbiter V2.5 toolheads, delivering a clean, integrated solution that complements the Orbiter's compact design. Whether you're building a new setup or upgrading an existing one, this board is engineered to fit seamlessly into Orbiter-based configurations.

Interface Compatibility

• Part Cooling Fan: 12/24V, compatible with 2-, 3-, and 4-wire fans.
• Hotend Fan: 12/24V with RPM feedback monitoring.
• Temperature Sensors: Compatible with standard NTC and PT1000 sensors.
• Probing & Scanning Expansion: Supports I2C input and includes an onboard USB port for bed scanners, nozzle cameras, or smart USB sensors.
• Additional I/O: X-Stop input, RGB LED output, and Orbiter sensor connection.

A great toolhead board should do more than light up on day one. It should make installation straightforward, maintenance frustration-free, and future upgrades actually worth looking forward to. That's exactly what O2S delivers.

From cleaner cable routing to direct-access troubleshooting, every detail is designed to save you time — whether you're building a new machine, swapping a part, or adding the next big feature to your setup.
GitHub

What's Included (Note: Contents may vary slightly by batch)

• Orbitool O2S Toolboard (mainboard)
• Orbitool O2S USB Adapter/Daughter board
• USB Adapter power cable
• USB-A to USB-C cable
• Orbitool O2S Toolhead Cable
• Assorted mounting hardware, connectors, and installation accessories

Backed by Open-Source Development and Brand Manufacturing

Orbitool O2S was designed and open-sourced by Robert Lorincz, and productized and sold by LDO. It offers the tailored functionality of a community-born project, backed by the reliability and polish of a branded product — so you get innovation you can trust, anywhere in the world.

FAQ

Q1: Which extruders is Orbitool O2S designed for?

It is  specifically designed for Orbiter V2 and Orbiter V2.5.

Q2: Is it a CAN board?

No. O2S uses protected USB communication to the Raspberry Pi and also provides onboard USB expansion.

Q3: What fans does it support?

It supports 12/24V 2-, 3-, and 4-wire part cooling fans, as well as 12/24V hotend fan RPM feedback monitoring.

Q4: Which temperature sensors are compatible?

Standard NTC and PT1000 sensors are both supported.

Q5: Can I connect a bed scanner or nozzle camera?

Yes. The onboard USB port and I2C interface both leave room for toolhead-side expansion.

Q6: Does the package include the Orbiter extruder itself?

Generally, no. The Orbiter extruder body and smart sensor kit are typically sold separately.

Q7: Why does the official documentation emphasize using the USB Adapter?

The adapter includes protection circuitry designed to minimise electrical risks common in 3D printer environments, safeguarding both communication lines and the Raspberry Pi’s USB port.

Q8: What kind of user is this board best suited for?

It’s ideal for DIY enthusiasts who want a cleaner Orbiter toolhead setup while leaving room for future expansion — such as adding a bed scanner, nozzle camera, or additional sensors.