layout: default title: Smoothieboards —

Smoothieboards

The Smoothieboards are numerical fabrication controllers designed to run the Open-Source Smoothieware firmware, by a community of volunteers.

They come in a range of different versions, with different feature sets and advantages.

All Smoothieboards are designed to run on the most powerful hardware in their price range at the time of their conception, to be easy to expand for new and adventurous uses, to be easy to develop on, and to be simple to use for normal users.

Available Boards Quick Reference

Board	Status	Processor	Drivers	Best For
v1	✅ In Production	LPC1769 (120MHz)	3-5× A5984	Budget builds, proven reliability
v2-prime	✅ In Production	STM32H745 (480MHz)	4× TMC2660/2590	High-performance, quiet operation
v2-mini	⏸️ Postponed	LPC4330	4× Heroic	Budget v2 experience
v2-pro	❌ Never Produced	LPC4330 + FPGA	5× TMC drivers	High-end experimentation

Smoothieboard v1

In Production Since 2013

Smoothieboard v1 was the first released Smoothieboard and has received several updates over the years.

It has gone from an experimental project to a widely used and acclaimed system trusted by thousands of makers worldwide.

Features

32-bit Cortex-M3 LPC1769 @ 120MHz with 512kB flash and 64kB RAM
3 to 5 A5984 stepper drivers with 1/32 microstepping
Thermistors and MOSFETs to control heaters and fans
Ethernet and USB connections
SD card to store configuration and G-code files
Various inputs and outputs for extensibility
Available in 3 versions: 3X, 4X, and 5X (different peripheral sets)

Documentation & Purchase

Getting Started: Smoothieboard v1 Guide
Technical Details: Smoothieboard v1 Specifications

Get Smoothieboard v1: Available at RoboSprout

Smoothieboard v2 (v2-prime)

In Production Since 2023

The successor to the v1 board in the version 2 line of Smoothieboards. This is the current flagship board with significantly more power and advanced features.

Design Change: The v2 board was originally designed around an LPC4330 processor, but was redesigned with an STM32H745 due to chip shortages during COVID. See Smoothieboard v2 Original (LPC4330) for historical information about the cancelled design.

Features

Dual-core STM32H745 (Cortex-M7 @ 480MHz + Cortex-M4 @ 240MHz) with 2MB flash and 1MB RAM
4× Advanced Stepper Drivers - TMC2660 or TMC2590 with 1/256 microstepping
Silent Operation - StealthChop2 for near-silent stepper motors
Powerful MOSFETs - Control heaters, fans, and high-current devices
Dual USB - USB-B (computer connection) and USB-A (thumb drive)
Fast Ethernet - Built-in web interface, Telnet, and FTP
SDIO SD Card - High-speed SD card interface
Gadgeteer Expansion - 8× 10-pin expansion ports for plug-and-play daughterboards

Documentation & Purchase

Technical Details: Smoothieboard v2 Prime Specifications

Get Smoothieboard v2-Prime: Available at RoboSprout Smoothieboard v2

Smoothieboard v2-mini

Development Postponed

Status: Because of COVID and tariffs, the development of v2-mini has been postponed, and partially replaced by the main v2 board (v2-prime). The specifications below were based on the cancelled LPC4330 design.

A minimalistic version of the v2 board, designed to be as inexpensive as possible while still delivering the v2 experience.

It’s essentially just enough to run a 3D printer with no heated bed, a small laser cutter, or a CNC router. No extra goodies, and you have to solder the connectors yourself.

Planned Features

32-bit Cortex-M4 LPC4330 with 8MB flash, 264kB RAM, and M0 co-processor
4× Heroic drivers with 1/128 microstepping
Thermistors and MOSFETs to control heaters and fans
USB-B (computer connection)
SD card with fast access
Standard expansion ports with a series of plug-and-play boards
No connectors pre-installed (DIY soldering required)

Currently being designed, see blog post.

Because v2 is being developed by awesome volunteers, we have no timetable or planned release date, so please stop asking.

Smoothieboard v2-pro

Never Produced

Status: The v2-pro board was never produced. The specifications below were based on the cancelled LPC4330 design.

An overpowered version of v2, designed for experimenting with intergalactic features and use on high-end machines.

Planned Features

32-bit Cortex-M4 LPC4330 with 8MB flash, 264kB RAM, and M0 co-processor
FPGA for step generation at insane rates and experimental features
5× High-Power Drivers - 3× TMC262 (high power) + 2× TMC2660 with 1/256 microstepping
Many thermistors and MOSFETs to control heaters and fans
Ethernet, USB-B (computer), and USB-A (thumb drive) connections
SD card with fast access
Many standard expansion ports with a series of plug-and-play boards

Currently being designed, see blog post.

Because v2 is being developed by awesome volunteers, we have no timetable or planned release date, so please stop asking.

Choosing a Board

For most users, we recommend:

Budget-conscious or proven stability → Smoothieboard v1
High performance and quiet operation → Smoothieboard v2-prime

Both boards are in active production and fully supported by the community.