BigTreeTech SKR V1.4 Turbo 32bit Controller for RepRap 3D Printers - Cover Expand

BigTreeTech SKR V1.4 Turbo 32bit Controller for RepRap 3D Printers

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The BTT SKR V1.4 Turbo is the new benchmark for 3D Printer Motherboards, offering the amazing SKR V1.4 features with an enhanced 120MHz CPU.

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Watching 3D Printers lay down individual planes of material to build items one layer at time is always a beautiful sight, and as Makers, we often can’t help but wonder about what exactly is going on under the hood. Fortunately, as Makers, although that does interest us, it’s not vital to enjoy the benefits of 3D Printing, and we’re quite lucky that so much development has gone into the industry, as this means we don’t have to start from scratch, and we can nowadays simply buy powerful and multi-functional Controller Boards to do all of the hard work for us, while we reap in the benefits of high quality prints among other cool features.

This is why we get so excited with each and every new motherboard we bring in, and this is especially so with the BigTreeTech SKR V1.4 Turbo Controller Board, as this board is filled to the brim with amazing features, while maintaining a cost that even rivals the original Arduino Mega2560 with RAMPS combo. With all of the very best features from the past few years of 3D Printer component development, as well as some fantastic features that are unique to the BigTreeTech SKR Motherboard range, there are very few controller boards that can quite compete with the speed, efficiency and overall functionality of the BigTreeTech SKR V1.4 Turbo.

Please Note: The SKR V1.4 Turbo is exactly the same as the original SKR V1.4 Motherboard, but features a faster 120MHz LPC1769 Processor instead.


What are the Key Features of the BigTreeTech SKR V1.4 Turbo Controller Board?

If you’ve been keeping up with the latest boards from BigTreeTech, then you will know that this is more than just a humble replacement part, but is rather a massive upgrade that is compatible with an impressively wide range of 3D Printers. And while the BigTreeTech SKR V1.3 Motherboard was certainly an amazing addition to the range, this more recent V1.4 edition really steps up the game with even more functional ports, better power delivery around the board, more interfacing options for both drivers and motors, and even a novel dual Z-stepper output to accommodate dual-z capabilities without having to splice or split any wiring!

So, without further ado, let’s dive into the three key features that we simply love about the BigTreeTech V1.4, and what kinds of cool benefits this board offers:

  • An Affordable 32bit Processor – Although this isn’t a new feature compared to the SKR V1.3, we definitely feel that it’s awesome enough to make it into the top three features for the SKR V1.4 Turbo. This is because, for years, 8bit boards dominated the market and performed extremely well, although with all of the more modern improvements, firmware updates and other minor upgrades along the way, 8bit boards simply can’t offer the quality that we know we can achieve in 3D Printing. This is why we get so excited with the fact that anyone can now enjoy a 32bt motherboard for relatively cheap, for faster potential printing speeds, smoother arches and curves, and overall more power to accommodate future upgrades and advances as 3D Printing continuously evolves.

  • More Interface Ports for Extras: When taking a glance at the layout of this board, it’s easy to see that the SKR V1.4 Turbo has been specially designed for maximum functionality, offering extra ports all over the board for even more features. These new ports include a secondary Z-Output for dual z-axis setups, more fan ports for control box and enclosure cooling, specialised ports for a Servo and Sensor Probe, as well as dedicated RGB LED and WiFi ports too. And of course, just like the SKR V1.3, these boards also offer the specialised ports for closed loop steppers like the MKS SERVO42A and MKS SERVO57, for Makers who really like to take their 3D Printing to the next level. These extra interfacing options not only add to the functionality of the board, but also allow you to really customise your 3D Printer, and we’ve honestly been very impressed with just how many extras BigTreeTech managed to fit onto this sleek and stylish board.

  • Improved Design & Layout: Although this is a relatively minor upgrade compared to the previous two, it is a welcome addition nonetheless, as this new design has removed some of the redundant parts like jumper configuration pin-sets, while replacing those with integrated functionality instead. A good example of this is how sensorless homing on the SKR V1.3 would need to be defined by the jumpers before powering up the board, whereas now you can simply define it within the firmware without having to power down the board. This, and a few other minor improvements, are a very valuable upgrades for Makers who really like to tinker and experiment, and the ability to tinker is one of our favourite aspects of BigTreeTech SKR Motherboards.

Finally, if you’ve already fallen in love with this board (like we have), but don’t quite need the 120MHz processing speed, then you should definitely take a look at the standard BigTreeTech SKR V1.4 Controller Board, which offers all of these awesome features, but without the extra 20MHz. Furthermore, although it’s quite uncommon, if you’re planning on using some of the newer 5V extras, such as the RGB LED Port or a Servo-based levelling sensor, then you may want to get the BigTreeTech SKR V1.4 DC-DC Edition, which includes a specialised DC-DC Module for effectively delivering power to the board for heavier 5V power draw applications.

Please Note: This board can operate on both the main DC power input as well as USB power, and you need to choose between the power inputs by using a jumper over the 3 onboard pins with the “VDD” & ”USB” labels in order to avoid causing unexpected damage. However, it must be noted that this board cannot actually print from USB power, which means that the USB power select is primarily just for interfacing with the board when setting up or flashing firmware.

Additional Note: It’s important to realise that this board does not come with Stepper Drivers included, so if you don’t have any spare stepper drivers, be sure to check out the stepper driver compatibility of this board below, and then consider getting a few drivers from our dedicated Stepper Driver Category.


BigTreeTech SKR V1.4 Turbo 32bit Controller Board  -  Technical Specifications:

  • Main Control Chip

– 120MHz ARM Cortex-M3 LPC1769

  • Input Voltage

– 12V / 24V DC (Optional)

  • Stepper Driver Compatibility

TMC2100 | TMC2130

– TMC2208 | TMC2209 | TMC2225

– TMC5160 | TMC5161

– A4988 | DRV8825 | ST820 | LV8729

– Also Supports External Drivers

  • Integrated Extra Functions

– Print Resume Functionality

– Filament Break Detection

– Automatic Shutdown After Print

– Automatic Bed Levelling

– BLTouch Capable

– UART / SPI Driver Compatible

  • Motor Interfaces

– X | Y | Z1/Z2 | E0 | E1

– Each Offers up to 256 Subdivisions

– Z Axis Features Dual Output

– Closed Loop Stepper Interface

  • Heating Element Interfaces

HE0: Extruder 1 Terminal

– HE1: Extruder 2 Terminal

– HB: Heated Bed Terminal

  • Thermistor Interfaces

TH0: Extruder 1 Port

– TH1: Extruder 2 Port

– TB: Heated Bed Port

  • Display Interfaces

EXP1 + EXP2: LCD Display Ports

– AUX-1: Port for TFT Display

– Supports TFT28 | TFT35LCD2004 | LCD12864  

  • End Stop Ports

– X- | X+

– Y- | Y+

– Z- | Z+

  • Additional Interfaces

USB-B Port: Computer to Board Interface

– TF Card Slot: Printing from Micro SD Card

– CNC Fan Port: PWM Capable for Speed Control

– 3 x Fan Ports: For Always-On Cooling Fans

– 3-Pin LED Port: For RGB LED Strips & Neopixels

– WiFi Port: For Dedicated ESP-01S WiFi Module

  • Firmware Support

Marlin2.0 | Smoothieware

  • Parts Included with the SKR V1.4

– USB-B Cable

  • Weight

– ±160g

  • Dimensions

– 85 x 110mm


Additional Resources:

  • To begin, it’s always a good idea to visit the BigTreeTech SKR V1.4 GitHub Page, as this contains a wealth of information, including the user manual, firmware, datasheets and schematics, and other useful resources that are sure to help.

  • Next up, this is the fantastic BigTreeTech Thingiverse List, which offers awesome STL files for enclosures that incorporate the SKR V1.3, SKR V1.4 and other BTT Displays and upgrades into popular 3D Printers, with designs that cater to all kinds of machines, styles and tastes.


Finally, if you’re eager to get a more visual understanding of what’s on this board, as well as how to setup and install this beautiful board in a 3D Printer, the following video by Teaching Tech does an excellent job at explaining the new features compared to the older version, as well as some basics on what other components you might need to get to enjoy the most out of the SKR V1.4 Turbo. Take careful note of the section relating to stepper drivers, however, as it can get quite complex, and you want to ensure that you can get the drivers that best meet your needs:


HWPCBBTTSKRV1.4 - User Manual

HWPCBBTTSKRV1.4 - BTT SKR V1.4 Instruction Manual

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BigTreeTech SKR V1.4 Turbo 32bit Controller for RepRap 3D Printers

BigTreeTech SKR V1.4 Turbo 32bit Controller for RepRap 3D Printers

As one of the rising stars in the world of 3D Printer Component Research and Development, BigTreeTech have certainly hit the ground running, entering the market in 2015 and spending their early stages primarily learning, researching, testing and developing, before producing some truly impressive results. From simple but effective upgrades to standard parts, all the way through to completely custom parts that no other brand offered at the time, BigTreeTech now have an incredibly diverse range, with almost no area of 3D Printing being left out.

Some of BigTreeTech’s most notable additions to the world of 3D Printing include the SKR Motherboard Range for numerous different 3D Printer models, the awesome TFT Touch Display Range with fancy features like dual-mode operation, as well as their very impressive Stepper Driver Range that cater to all tastes and preferences under the sun. And of course, to top it all off, BigTreeTech also have a sister company named BIQU, and we must admit that they have been producing some pretty impressive (and low price) 3D Printers, with the BIQU B1 possibly becoming a new rival to the Ender 3.

Of course, it’s easy to see that BigTreeTech are modern masters of 3D Printing R&D, and while we do still have a lot of different parts that we want to test out from them, so far we’ve been extremely happy with what they’re capable of producing – all while fitting into same kind of hobbyist budget that they used to operate on as Makers and Tinkerers themselves.