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3D printer main board
Buy a controller board for your 3D printer in the USA | 3D printing experts
About 3D printer controller boards
A controller board or a motherboard is the heart of a machine. This special unit manages and links the machine’s components to one another. The motherboard oversees the processes, ensuring that your 3D printer or laser engraver is operating to its full capacity. Check that the motherboard is compatible with your 3D printer or CNC machine as some items are manufactured for certain brands. Easily find a high-quality motherboard for your machine in our collection.
Select a controller board for your 3D printer
So, how do you go about selecting a controller board?
Choosing a mainboard depends on the kind of device you are working with and also what the tasks that you intend on having the device perform. The most important feature to consider is the firmware that supports the mainboard. There are many different types available like Marlin, MK4duo, and RepRapFirmware. Do take into account that certain mainboards will come with the manufacturer’s firmware installed, for example, Creality and Klipper.
Another consideration is the amount of axis that you would like to be supported by the mainboard and the number of extruders you will be able to hook up to your 3D printer. The speed of the main processor is also determined by your choice. The higher the MHz the faster your machine can run. Furthermore, ensure that the peripherals you would like to incorporate into your machine are supported by the controller board. This concerns the fan outputs, external stepper drivers, thermistors, thermocouples, SD cards, and LCD/touch screens. It can also be that you want to set up another circuit for the heated bed, allowing you to provide more power to your machine. Decide which voltage is required to run your machine as higher voltages will give more power for the heaters and stepper motors. The most commonly supported voltages are 12-24V. The expandability of the motherboard will also be different.
Some will accept certain add-ons, like Duet 3D known for electronic devices with various innovative expandability options.
3D printer motherboard firmware
Firmware is an essential part of the motherboard and acts as the connection between all components. A firmware will function based on the scripts and programs designed by developers. This can vary depending on a device and its intended function. Without firmware, devices would not know what to do and in fact, would not function at all. Firmware can be found in all devices like TVs, washing machines, and security cameras. Firmware processes the inputs and controls the outputs in 3D printers and CNC machines. An example of an input is the file provided by the slicer software with G-code instructions which is then executed by the firmware.
Updating a 3D printer’s firmware
Updating firmware is possible however there are many factors to take into consideration. Compatibility is very important since not all motherboards support the same types of firmware.
There are many reasons to update your firmware, however, it is advised to do this if really required. For example, if you need to fix some bugs and your machine keeps crashing. If you feel like you are missing out on the necessary features that your project or activity requires, this is also a good reason to look into updating your firmware. In case you would like to fully replace your motherboard, it is very possible that you will also have to change the firmware as well, especially if the previous firmware does not match.
Do you have questions about controller boards? Please let us know through our customer service team, we are happy to help!
Frequently asked questions
How can I upgrade the firmware of my 3D printer?
Connect your 3D printer to your computer with a USB cable or download the compatible firmware onto your USB and plug it into your 3D printer. Always check the manual as this can depend on the 3D printer. There is a series of firmware to select from like Marlin, MK4duo, or RepRapFirmware.
Make sure that your firmware is compatible with your 3D printer’s mainboard.
What is the best 3D printer controller board?
The best controller board for your 3D printer depends on the kind of machine and the firmware that is supported. Decide what kind of peripherals will make your machine complete and determine the features and operations you need to perform, this will majorly outline which mainboard to select. Find your 3D printer and see the available upgrades for your machine on the product pages.
What is a 3D printer controller board?
A 3D printer’s controller board or motherboard is often referred to as the heart of the machine. It is a special unit that oversees and manages all operations of a 3D printer or CNC machine. The firmware is located in a mainboard that connects all components to the same place for inputs and output commands.
What controllers do 3D printers use?
A 3D printer is controlled by the firmware.
The firmware receives input from the slicer software with G-code commands for the 3D printer. The 3D printer is then instructed on where to place the extruder and when, or how much filament to extrude at a certain temperature appropriate for the material or model being printed.
How do I choose a 3D printer mainboard?
A controller board should be selected based on the intended functions for your 3D printer. Choose a 3D printer mainboard that supports the peripherals best for optimal operation. There are many aspects to take into account like the overall setup, voltages, and expandability options. We list upgrades for specific 3D printers on the details page in our 3D printer section.
The 6 Best 3D Printer Controller Boards in 2022 – Clever Creations
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From using Arduinos with CNC shields to now having a full-fledged WiFi-equipped circuit, 3D printer controller boards have come a long way.
They’re the brains of any 3D printing setup and are responsible for controlling, coordinating, and executing all of a printer’s functions.
If you’ve bought a fully assembled 3D printer that you are happy with, it’s doubtful that you ever had to think about the controller board. But if you’re someone who wants to upgrade his 3D printer or build a DIY printer from scratch, you probably understand how important it is to select the best 3D printer controller board for your needs.
To help you with getting the best control board for your 3D printer, we’ve compiled a list of the six best motherboard options that you can buy right now.
| 3D Printer Controller | Summary | Input | Processor | Price | Best Offer |
|---|---|---|---|---|---|
| Duet 2 WiFi | Best overall | 11-25V | 32-bit | $170 | MatterHackers |
| Duet 3 6HC | Best high-end | 11-32V | 32-bit | $255 | MatterHackers |
BTT SKR Mini E3 V2. 0 | Best on a budget | 12/24V | 32-bit | $65 | Amazon |
| Creality 3D 4.2.7 | Best for Ender 3 | 24V | 32-bit | $50 | Creality3D |
| BIGTREETECH Octopus | Most stepper drivers | 4.75-36V | 32-bit | $52 | Amazon |
| BIGTREETECH TFT35 V3.0 | Best LCD add-on | 5V | 32-bit | $45 | Amazon |
Best 3D Printer Motherboards in 2022
Duet 2 WiFi
Best overall
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The Duet 2 Wi-Fi features a 32-bit ARM-based processor specifically designed for industrial automation projects. As-is, the Duet 2 Wi-Fi can support up to five unique stepper motors. This, however, can be extended to support up to five extra stepper motors and extruders with the Duex 5 expansion board.
All stepper drivers used on the Duet 2 Wi-Fi are TMC2660s, which have a high current rating of 2.
4A and are able to run the stepper motors quietly in up to 1/256 micro-stepping. The board runs on the well-documented and feature-rich RepRap firmware.
The great thing about the Duet 2 Wi-Fi is its compatibility with different Duet expansion boards and accessories. You can connect a PanelDue board to get a full-color graphic touch screen, temperature sensing daughterboards, the Duex 5 for additional steppers, servos, fans, and heaters. It even has the option to use a smart effector for delta 3D printers for bed leveling.
The many features and ability to use it with practically any 3D printer make the Duet 2 Wifi the overall best 3D printer controller board that you can get right now. It definitely costs more than your typical board, but you get what you pay for.
Standout Features
- Wi-Fi connectivity
- External stepper driver support
- Quiet 1/256 microstepping
Technical Details | |
|---|---|
| Input voltage | 11V - 25V |
| Stepper drivers | 5x TMC 2660 |
| Microstepping | Up to 256 |
| Microprocessor | ARM Cortex M4F, 32-bit |
| Connections | 2. 4GHz WiFi, USB serial port |
| SD card slot | Yes |
What We Like
- Powerful
- Many I/O ports
- Built-in Wi-Fi
Could Be Better
- High price
Find Duet 2 WiFi at
AmazonMatterHackersE3D
Duet 3 6HC
Best high-end
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The Duet 3 6HC is the latest release from Duet 3D. The 6HC in the name stands for 6 High Current stepper motors. The board uses a faster 300 MHz 32-bit ARM processor, allowing for high-speed calculations. The Duet 3 features six Trinamic 5160 stepper motor drivers rated at a 6.3 A peak current.
Other than this, you get 10 PWM outputs for the heated beds, extruders, and fans. It has 9 I/O ports for end-stops, Z probes, filament sensors, and other peripherals. These allow you to decorate your 3D printer with many sensors, fans, and accessories and still have room left for more.
The CAN-FD buses will let you connect other Duet boards, smart tools, and custom add-ons, thus ensuring upgradability. There’s a dedicated high-speed SPI bus to a single board computer (SBC) to let you connect SBCs like Raspberry Pi’s.
The Duet 3 6HC is expensive and aimed at professionals that require a versatile high-end 3D printer controller. However, the RepRap community’s ample amount of documentation and support means that if you want one, you can easily configure it to work with any off-the-shelf 3D printer as well.
Aside from being more than powerful enough to drive nearly any 3D printer, the Duet 3 is an equally attractive option for a home CNC machine or laser engraver.
Standout Features
- High-speed ARM processor
- High current stepper drivers
- Numerous i/o options
Technical Details | |
|---|---|
| Input voltage | 11V to 32V |
| Stepper drivers | 6x TMC2160 or TMC5160 |
| Microstepping | Up to 256 |
| Microprocessor | ARM Cortex M7, 32-bit |
| Connections | Ethernet and USB Serial port |
| SD card slot | Yes |
What We Like
- Wide stepper motor compatibility
- Suitable for high-end 3D printers
- Lots of expansion options
Could Be Better
- High price
- Requires technical expertise
Find Duet 3 6HC at
AmazonMatterHackersE3D
BIGTREETECH SKR Mini E3 V2.
0 Best on a budget
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The SKR Mini E3 V2.0 is the successor to the original E3, designed explicitly for the Ender 3 3D printers. With the SKR Mini E3 V2.0, Bigtreetech offers support for more Creality machines like the CR-10, CR-10S5, and Ender 3 3D printers.
The V2.0 is a 32-bit 3D printer controller board that features ultra-silent, TMC 2209 stepper motor drivers and can handle 2A RMS current. It also comes with two Z-axis ports, so that you can drive dual Z-axis stepper motors.
Aside from the excellent stepper drivers, the SKR Mini E3 V2.0 also comes with support for BLTouch and filament detection sensors. This gives you the option to install additional Ender 3 upgrades and Ender 5 upgrades that reduce the chance of failed 3D prints.
The Mini E3 V2.0 supports the open-source Marlin firmware. It offers a variety of additional features like the power resume function, automatic shutdown, and onboard sensorless homing functions.
If you’re on a budget and want to upgrade your Creality 3D printer, the SKR Mini E3 V2.0 is likely the best 3D printer controller for you.
Standout Features
- Parallel Z-axis interface
- BLTouch and filament detection ports
- Improved thermal performance
Technical Details | |
|---|---|
| Input voltage | 12/24V |
| Stepper drivers | 4x TMC2209 |
| Microstepping | 256 |
| Microprocessor | ARM Cortex-M3, 32-bit |
| Connections | Mini-USB-B type |
| SD card slot | Yes |
What We Like
- Low price
- Easy to use
- Silent stepper drivers
Could Be Better
- Limited upgradability
Find BIGTREETECH SKR Mini E3 V2.
0 at
AmazonBigtreetechGeekbuying
Creality 3D 4.2.7
Best for Ender 3
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AmazonCreality3D
The Ender 3 is still one of the best budget Creality 3D printers. But it has aged in terms of its features and capabilities. The latest version of the 3D printer controller board from Creality – 4.2.7 aims to bring the Ender 3 to the current 3D printing trends.
The Creality 3D 4.2.7 controller board features a 32-bit ARM processor with increased flash storage that lets you run more firmware features faster, and with this supporting the latest Marlin 2.0 firmware. Creality calls this controller board the “silent mainboard” due to the TMC 2225 stepper motor drivers that keep your 3D printer’s motors silent.
This 4.2.7 now comes with a pre-installed bootloader, which means that you can update the firmware by merely inserting the SD card with the firmware BIN file. It also has ports for the BLTouch auto leveling sensor and filament sensors that remove the need for any previously needed extenders.
The Marlin 2.0 comes pre-installed with the board, and with a little bit of configuration, you can directly use it with your Ender 3. It is an excellent upgrade for the Ender 3 3D printers, considering that you get an officially supported board with the latest features.
Standout Features
- 32-bit processor
- Pre-installed bootloader
- Silent TMC 2225 stepper drivers
Technical Details | |
|---|---|
| Input voltage | 24V |
| Stepper drivers | 4x TMC2225 |
| Microstepping | Up to 256 |
| Microprocessor | ARM Cortex-M3, 32-Bit |
| Connections | Micro-USB port |
| SD card slot | Yes |
What We Like
- Easy to install and use
- Official company support
- Affordable
Could Be Better
- No UART control
- Poor quality control
Find Creality 3D 4.
2.7 at
AmazonCreality3D
BIGTREETECH Octopus
Most stepper drivers
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The BIGTREETECH Octopus controller board natively supports eight stepper motors. You can choose your stepper motor drivers and the mode in which you want to run them, and this makes the board a beast in terms of sheer stepper motor support.
This 3D printer controller board supports up to four hot-end heaters. Then there are six PWM controllable fan interfaces, six end-stop switches, and two inputs for filament detection sensors. You even get a CAN bus interface if you decide to upgrade further and a USB-A port that can interface with a Raspberry Pi using emulated serial over USB.
Another expansive feature of the Octopus board is the support for a dual Z-axis drive. This can come in handy if you’re building a large cartesian or even a Core XY-type 3D printer. There are many other features too, and the sheer number of connectivity options make it one of the best 3d printer controllers if you’re planning to build something like a Voron 3D printer that needs many stepper motors.
Standout Features
- Supports up to 8 stepper motors
- Interfaces with Raspberry Pi
- Marlin and Klipper firmware support
Technical Details | |
|---|---|
| Input voltage | 4.75V - 36V |
| Stepper drivers | 8 pluggable stepper driver support |
| Microstepping | Up to 256 |
| Microprocessor | ARM Cortex-M4, 32-bit |
| Connections | USB type C port |
| SD card slot | Yes |
What We Like
- Suitable for large 3D printers
- Lots of expansions ports
- USB-C interface for easy compatibility
Could Be Better
- Complex wiring
- Limited community support
Find BIGTREETECH Octopus at
AmazonBigtreetechGeekbuyingBanggood
BIGTREETECH TFT35 V3.
0 Best LCD add-on
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AmazonBigtreetechBanggood
The BIGTREETECH TFT35 V3.0 is an LCD touch screen upgrade designed for the Ender 3 and CR-10 3D printers. The V3.0 stands out because of its dual nature. You can use it as a regular LCD screen with the knob or use the touch screen to navigate the menu quickly.
It gives you the best of both worlds without the hassles of either. Additionally, you get a port for an external Wi-Fi module, a full-sized SD card slot, and a USB 2.0 port, giving you plenty of options in terms of connectivity.
However, the touch screen is not plug-n-play, and you need to tweak some firmware settings to get it working with your 3D printer. Teaching Tech on YouTube has a comprehensive guide covering everything you need to get the TFT35 working.
The BIGTREETECH TFT35 V3.0 is not meant as a completely new overhaul for your 3D printer but rather is aimed to improve the functionality of interfacing with it. The touch screen combined with the knob is suitable for many users.
And considering the price, it is a worthwhile upgrade to make.
Standout Features
- Dual-mode use
- Pre-installed bootloader
- Wi-Fi module and filament detection ports
Technical Details | |
|---|---|
| Input voltage | 5V |
| Microprocessor | ARM Cortex-M3 series 32-bit |
| Connections | USB A port and external Wi-Fi module support |
| SD card slot | Yes |
What We Like
- Easy to use
- Compatible with many 3D printers
- Lots of configuration options
Could Be Better
- Firmware can be buggy
- Technical expertise required
Find BIGTREETECH TFT35 V3.0 at
AmazonBigtreetechBanggood
Buyer’s Guide
Above we have listed some of the best 3D printer controller boards available.
But what if you want to look for more boards? What exactly do you look for in a 3D printer motherboard, and how do you select one for yourself? Here are a few pointers that you need to keep in mind.
Firmware Compatibility
Firmware is the software on the 3D printer controller board that is responsible for all calculations and commands to the printer hardware. There are many different types available, for example, Repetier, Prusa, Klipper, and Smoothieware.
Recommended:
Creality Sonic Pad Review: A Klipper Solution That Needs More Work
Each one is designed for a slightly different purpose, and you need to keep in mind your goals with the machine. For example, if you want a high-speed 3D printer, Klipper is the best choice for you. Marlin and RepRap are the go-to options if you want well-documented and widely used firmware.
You need to consider the choice of your firmware beforehand to select the best suitable controller board for yourself. Make sure there’s enough documentation and support available with your combo so that if you run into any issues, you can quickly sort it out.
Processor
3D printers either have an 8-bit controller board or a 32-bit board. An 8-bit board is cheap to manufacture and provides all the basic functionalities you would expect from a 3D printer. However, it comes with low onboard memory, and the lower number of bits means that it can process fewer calculations at a time, thus significantly affecting its speed.
32-bit motherboards operate at a higher clock speed, have a slightly greater onboard memory, and execute calculations at a much higher rate. They’re compatible with more I/O ports and communication interfaces, and all of these translate to a more feature-rich 3D printer motherboard.
If you want a basic 3D printer with limited functionalities, 8-bit boards are an option. They’ll save a bit of money, and you won’t have to pay for things you won’t use. However, if you want your 3D printer to be future-proof, have advanced functions, and print faster, a controller board with a 32-bit processor is vastly superior.
In our list with the best 3D printer controller boards above, we have only added 32-bit controllers. We believe that an 8-bit board is not worth buying and a 32-bit board is always the better option.
Communication methods
The most basic method of communication on a 3D printer motherboard is a USB port. A USB serial port allows you to control your 3D printer via a USB connection with a computer.
Wi-Fi and Ethernet ports are other methods of communicating with your 3D printer. An ethernet port would allow you to control your 3D printer over a local wired network.
Wi-Fi connectivity would allow you to control your printer wirelessly. One benefit of Wi-Fi is that you don’t even have to be present in the same room as your 3D printer, and you can control it remotely from anywhere.
Low-end controller boards don’t come with Wi-Fi and Ethernet ports; some might have pins for attaching external Wi-Fi modules, though. A USB serial port is enough if you want a basic 3D printer.
If you want wireless 3D printing or operate many 3D printers simultaneously, you should consider getting a Wi-Fi-equipped controller board.
Connectors
Aside from a USB port, there are many other connectors (or headers) on the controller board. These are used for a wide variety of purposes. Endstop connectors, hot end heaters, stepper motor connectors, bed leveling, and filament runout detection sensors are some of the few.
A well-specced-out controller board like the Duet 2 Wi-Fi or the Duet 3 6HC will have almost all of these connectors and then some more. Connectors allow you to interface various devices with your 3D printer, providing additional functionality.
The more connectors your controller board has, the more expensive it will be and take a lot of space. You need to know what features you want in your 3D printer and select the board with the particular connectors to get the maximum benefit.
Stepper Drivers
Stepper motor drivers affect the size of the stepper motors you can drive in your 3D printer and the sound levels you hear in the process.
On most 3D printer controller boards, stepper drivers can’t easily be swapped out. Therefore, selecting the right kind of controller board with the right stepper driver is essential.
Basic stepper drivers like the A4988 are cheap, easily accessible, and provide a relatively good experience for basic 3D printers. They do drive stepper motors loud, are unreliable, and can only provide the steppers with limited current.
TMC drivers, on the other hand, are known for their silent operation and current-carrying capacities. The TMC 2xxx series are rated at 2A peak current, while the TMC 5160 typically offers 3A to 4.4A on 3D printer controller boards.
You need to consider the microstepping capabilities of the stepper motor drivers as well. Microstepping divides a full step into smaller steps. The smaller the step, the higher the resolution and the smoother the vibration. As a minimum, you want 1/16 step microstepping, but the best 3D printer controller options offer up to 1/256 step
Touch screen support
A touch screen enhances the functionality and ease of use of a 3D printer by making navigating the menu and dialing in the various features easier.
Not all controller boards have touch screen support built-in. While choosing a controller board, look at the connectivity options and the compatible touch screens. You need to make sure that the board’s firmware supports it, and there is at least a little bit of documentation on how to interface the controller with the touch screen.
FAQ
What is a 3D printer controller board?
A 3D printer controller board is a piece of hardware that controls all electronic components in a 3D printer. It is responsible for motion, temperature control, and reading all commands from GCode files.
Why upgrade your printer’s stock controller board?
As time passes, the current features in your 3D printer start to seem obsolete. A controller board upgrade will give you access to many advanced features, allow for added functionalities and enhance your overall 3D printing experience.
Is a 3D printer controller board the same as a 3D printer motherboard?
Yes, in the context of 3D printing, the terms ‘controller board’ and ‘motherboard’ are used interchangeably.
They mean exactly the same thing.
Conclusion
The best 3D printer controller boards are the ones you’re able to afford and will work with your 3D printer. With so many options on the market, it can be tough to choose just one. The important thing is figuring out which one of these top-rated controllers would be right for you.
In our opinion, the Duet 2 Wi-Fi is the overall best 3D printer controller board that you can get right now. Despite its high price, the Duet 2 Wi-Fi ticks all the boxes in terms of features, connectivity, upgrades, and ports. It is designed to be a universal solution for all types of 3D printers and can serve as an effective replacement for practically any board.
Let us know what you think about it, and if you have anything else to add, feel free to comment below.
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Board for a 3D printer: choosing a control motherboard
When buying or assembling a 3D printer with your own hands, special attention should be paid to the device's motherboard.
Since this component is responsible for printing products in general. Consider what functions the motherboard performs, what types of this component exist, and what parameters you need to pay attention to when choosing it.
3D printer motherboard
The controller motherboard is the main control element for the extruder, motor, sensor and heated filament bed in any 3D printer.
Motherboard is executing user-specified commands. After the internal set of microchip elements converts electrical impulses into mechanical movements of stepper motors. As a result, a three-dimensional computer model will be printed layer by layer on the working surface of a 3D printer.
Choosing a control board
Among the most popular motherboards for 3D printers, there are five models:
- Arduino Mega 2560 + Ramps 1.4.
- Melzi.
- Lerdge X.
- Duet.
- Rumba.
Let's take a closer look at the features, pros and cons of each board.
Arduino Mega 2560 + Ramps 1.4
Board with Ramps 1.4 component operates from 5 V. It is equipped with five slots for installing stepper motors. At the same time, three slots allow the motors to control the axes of the printer, and the other two to drive the extruders. In addition, the board contains many additional pins for controlling various elements, such as a table auto-level sensor, axle limit switches, servos, etc.
To control all the printer's built-in electronics, the board contains contact pads into which the Ramps shield component is inserted.
The three main advantages of the board are:
- low price;
- a wide range of interchangeable components that can be replaced in the event of a breakdown;
- additional pins for controlling various printer components.
The board has only one significant drawback - its bulky design.
Melzi
The Melzi motherboard is equipped with four stepper motor controllers, three of which are located on the XYZ axis and one on the extruder.
This model is sold already with customized firmware. Therefore, the user only needs to correctly connect the wires to the output connectors.
You can print 3D objects using a memory card via a micro-USB connector or by connecting the card directly to a computer.
The Melzi board is ideal for the beginner building a printer for the first time. Since it does not require additional calibrations and can be used immediately after purchase. However, the motherboard also has significant drawbacks:
- no display can be connected to the board;
- You can reflash the motherboard only through the ISP port, but this will take a lot of time and a layer of special knowledge;
- If the motor controller fails, it cannot be replaced.
Lerdge X
Lerdge X is a motherboard with a 32-bit STM32F407 chip that allows you to quickly read lines of code. The device is additionally equipped with four drivers and a color display with touch control.
The board supports only one extruder and it is not possible to install a second one if necessary.
Before using the board, you need to calibrate it, set the dimensions of the working area, adjust the temperature sensors of the extruder and table, and set the speed parameters of each motor.
You can print files using a flash drive, memory card or via a computer.
Pros of using the Lerdge X board:
- motherboard fits any type of printer;
- board chip supports various kinds of popular slicers;
- built-in display with touch screen.
The disadvantage of using the board is that only one extruder can be used.
Duet
The Duet board is equipped with its own open source firmware, which is available for free to any user on Github.com. The 32-bit Atmel SAM3X8E chip is responsible for the stable operation of the motherboard.
Built-in device drivers allow four extruders to print simultaneously. For more convenient control, the user can install a touch screen with a diagonal of 4.3, 5 and 7 inches.
Pluses of the board:
- free firmware;
- four extruders available at the same time;
- two board configurations to choose from (Ethernet or Wi-Fi).
Duet motherboard cons:
- Before installing the board, it requires full configuration and firmware.
Rumba
The Rumba 8-bit motherboard allows the 3D printer to use three extruders at the same time. However, installing them separately will not work, but you can only install a Diamond Hotend multi-extruder with support for three filaments.
This type of board is based on the Arduino processor. It comes with Marlin firmware installed. If the user needs to reflash the board, then for this you can use the standard mini-USB connector.
Among the advantages of Rumba are:
- the presence of connectors for connecting a display and a slot for a memory card;
- removable motor drivers that can be easily replaced if broken;
- simple flashing if necessary.
The main disadvantage of the motherboard is that for printing with multiple filaments, you will need to purchase an additional multi-extruder.
What to look for when choosing a 3D printer board?
When choosing a motherboard for installation in a 3D printer, the user is advised to pay attention to six device parameters:
- The number of supported extruders. Ideally, there should be four or more. In this case, full color printing will be available.
- Integrated or plug-in drivers. It is desirable that the drivers in the board are removable. Since in the event of a breakdown, they can be easily removed and repaired or replaced in the event of a complete malfunction.
- Number of engines.
It is recommended that the board has at least four motors, ideally six. - Wi-Fi available. The built-in module will allow you not to constantly connect the printer to the computer each time you print.
- Firmware support. It is desirable that the board supports various types of firmware. Both paid and free.
Help. Each specific type of board can support one or more types of firmware. Their number depends on the board manufacturer. For example, Arduino boards support Marlin, Marlin Kimbra, Marlin RichCattell, Repetier-Firmware, Teacup, Aprinter, Sprinter firmware. Arduino Due motherboards can work with Marlin4Due, Marlin Kimbra v4.2.x, Repetier-Firmware, RepRap Firmware. And 32-bit ARM processors are compatible with Smoothie Project and Redeem firmware.
- The presence of protection against incorrect inclusion of elements.
In this article, we have listed only the most popular motherboards for 3D printers.
However, on the electronics market there are boards for any user requests, the choice of which can be guided by the recommendations presented above.
- March 29, 2021
- 4848
Get expert advice
3D printer motherboard based on STM32F401CCU6 BlackPill
RepRap
I would like to share with you a short review of my experience in creating your own printer motherboard based on the STM32F401CCU6 MK, commonly known as BlackPill.
I'll start with why:
- I was just curious to try something new. It would be possible to buy a 32-bit board instead of your old RAMPS, if not for excessive enthusiasm, as well as the desire to have everything you need and nothing more.
- no, but there is an economic component - the fee was not so expensive, the skill for change was pumped a little. And seeing the current prices for a set of Atmega2560 + RAMPS for the sake of outdated 8 bits, we can say that it turned out to be a plus.
So, what is the board like: this is the ideal of a minimalist in terms of capabilities - only 3 axes + extruder, 4 PWM controlled outputs: a table (with a powerful reliable field worker), a hot end, a model blower fan, an extruder blower fan (like me this was not enough before, the hotend cooled down to 50, the fan turned off and did not wind dust on itself all night), two temperature sensor inputs: for the table and for the hotend, respectively, 3 limit switch inputs, connectors to get 3.3, 5, 12 volts from the board. Powered by 24V. The inputs of the limit switches are protected by an optocoupler, the inputs of thermistors by suppressors, the USB input by a static protection microcircuit. I tried to make everything as compact as possible, but to fit into 2 layers (for those who want to repeat with LUT, photoresist or on a router), therefore 0805.
The firmware is built on the basis of Marlin 2.1.1 for self-assembled Core-XY in VisualStudio Code + PlatformIO.
The board itself is added to Marlin under the name BOARD_STM32F401CCU6 , compile with environment env:blackpill_f401cc_env. EEPROM emulated in controller flash area, screen 2004 (RepRapDiscount Smart Controller) tested and working.
The board is already successfully working in the printer, but alas, there is no time to drive too much, again it is field work. However, I managed to test a couple of night seals, there are no complaints about the board.
GITAt the link to the github, those who wish will find all the sources: gerber files, a BOM list with approximate prices and links to all components, firmware, instructions for adding their board to Marlin (for those who want to assemble from the original sources themselves), instructions for adding its own thermistors (the board has a feature - a pull-up on the analog input of the ADC 1kOhm instead of the usual 4.7kOhm, this gives more ADC readings per degree at high temperatures).
P.S. Please share your experiences in the field of Open Hardware, together we can do something worthwhile.
DIY marlin open source STM32F401CCU6 GitHub
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I've been missing Mitya's printing area, and the features of delta kinematics suggest...
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I deliberately postponed this publication until the end of the competition, so as to stay out of it, so to speak)).
