Descrizione
A printer is only as disciplined as the board that tells it where to go.
Most 3D printers ship with a controller chosen for cost, not for control. The Manta Forge starts from the opposite premise. It is a 32-bit control board kit built around a Raspberry Pi CM4 socket, which means the single-board computer that runs Klipper sits directly on the controller instead of hanging off the frame by a ribbon cable. Fewer cables, shorter signal paths, and one tidy electrical stack.
The board carries eight stepper driver slots. That headroom is the point. Eight drivers give you a true multi-extruder toolchanger, an IDEX gantry, or a CoreXY build with independent Z motors, without daisy-chaining adapters or settling for a compromise wiring plan. Driver modules are socketed, so the board accepts the quiet TMC2209 for everyday motion and the higher-current TMC5160 when a large-format build demands more torque per axis.
Communication is handled through USB-C and dual CAN bus ports. CAN has quietly become the standard for toolheads and multi-board printer farms because it reduces the wire bundle running to a moving carriage to a single four-conductor cable. On a 350 mm or larger bed slinger, that reduction in moving mass shows up directly in ringing and ghosting at speed.
The kit is honest about what it is. It is a bare control platform for someone who intends to configure firmware, measure a bed, and tune a machine. It rewards that effort with a control layer that does not bottleneck the mechanics you already paid for.
Give the frame a board that can keep pace with it, and the machine stops being the limiting factor.
Key Features
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✦ Eight Stepper Driver Slots
Expand from a single extruder to a toolchanger or IDEX layout without adapters or re-wiring the loom. -
✦ On-Board Raspberry Pi CM4 Socket
Runs the Klipper host directly on the controller board, removing the external Pi and its ribbon cable from the build. -
✦ Dual CAN Bus Ports
Sends toolhead and accelerator signals over a single four-conductor cable, cutting the moving wire bundle on large printers. -
✦ Socketed Driver Modules
Swap between TMC2209 for silent operation and TMC5160 for high-current axes in seconds. -
✦ USB-C and UART/SPI Interfaces
Connects to a host PC or an embedded computer with a modern, reversible cable. -
✦ Broad Firmware Support
Written up for Klipper and Marlin, with community configuration files available for the common printer families. -
✦ Open Documentation
Pinouts, schematics and jumper tables are published so the board can be audited before it is trusted with a build.
Technical Specifications
- Architecture: 32-bit ARM Cortex-M microcontroller
- Host Interface: Raspberry Pi Compute Module 4 socket (board-mounted)
- Stepper Driver Slots: 8 socketed positions
- Supported Drivers: TMC2209, TMC5160, TMC2208 and compatible step/dir modules
- Connectivity: USB-C, dual CAN bus, UART, SPI
- Temperature Sensor Inputs: Multiple thermistor / PT1000 header options
- Fan Outputs: Controllable hot-end, part-cooling and electronics fans
- Input Voltage: DC 12V to 24V
- Firmware: Klipper and Marlin
- Mounting: Standard 3D printer control-box hole pattern
Where It Belongs
This board suits anyone rebuilding a stock printer into a serious machine: a Voron or RatRig build that needs more than five drivers, a large-format bed slinger where the moving wire bundle has become the real speed limit, or a multi-material toolchanger where each toolhead needs its own driver and its own temperature loop. It is equally at home in a small print farm where identical control stacks make maintenance predictable. If you are still running the original controller on hardware you have already upgraded, the board is usually the least expensive remaining bottleneck to remove.
Frequently Asked Questions
Q: Does this board run Klipper without a separate Raspberry Pi?
A: Yes. The CM4 socket is on the board itself, so a Compute Module 4 acts as the Klipper host and the microcontroller handles motion. That removes the external Pi and the ribbon cable between them.
Q: How many extruders can it drive?
A: Up to eight steppers can be assigned freely. Typical builds use four to six for a toolchanger plus dedicated Z motors, and the remaining slots for dual extruders or an IDEX carriage.
Q: Can I use the TMC2209 drivers I already own?
A: Yes. The driver slots are socketed and accept TMC2209 modules. If a large-format axis needs more current, a TMC5160 can be fitted in that position without changing anything else.
Q: Is CAN bus mandatory?
A: No. USB-C works for a conventional single-board setup. CAN becomes worthwhile when you want a single cable running to a moving toolhead or when several boards are chained in one printer.
Q: What firmware is documented?
A: Klipper and Marlin are both supported. Community configuration files exist for the common printer families, which shortens the initial bring-up considerably.
Q: Will it fit my existing control box?
A: The board follows a standard control-box mounting pattern, so most builds can reuse the original standoffs. Check the published dimensions against your enclosure before ordering.
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