Annex-Engineering
VORON was a project began in 2015. VORON original developers was to create a no-compromise 3D printer that was fun to assemble and a joy to use. It had to be quiet, clean, pretty, and continue to operate 24 hours a day without requiring constant fiddling. In short a true home micro-manufacturing machine without a hefty price tag. It took over a year in development, with every part being redesigned, stress tested and optimized. Shortly after the release a vibrant community formed around the project and continues to grow today. This community is part of what makes VORON such a special experience.
What was once a one-person operation has grown into a small tight-knit group of engineers united under a common design ethos. We’re dedicated to creating production-quality printers you can assemble in your kitchen. It’s this passion and dedication that drive us to push the boundaries just a little further. We build space shuttles with gardening tools so anyone can have a space shuttle of their own.
Welcome to VORON Design.
Here is Annex-Engineering’s open source files on GitHub.

Voron 0
120mm x 120mm
CoreXY
Fully enclosed
Wifi controlled
120°C Heated bed
300°C Hotend
200mm/s Movement speed
Official Suggested Parts Expense: USD $300-$400
Voron 0 is one of the smallest 3D printer designs around the world. It is good for home and office user to do prototyping. Its insanely fast heat-up speed and print speed gives you a new concept to replace traditional prototyping method with 3D printing. Voron 0 can print industrial material like ABS, Nylon since it is a fully enclosed printer with 140°C top bed temperature. Moreover, less maintenance is a huge advantage of this printer. It is a very solid work horse.
Voron 2.4
250mm x 250mm | 300mm x 300mm | 350mm x 350mm
CoreXY
Fully enclosed
Wifi controlled
120°C Heated bed
300°C Hotend
500mm/s Movement speed
Official Suggested Parts Expense: USD $800-$1000
Voron 2.4 is a quad gantry setup 3D printer. Its belt gantry gives a fast moving Z gantry and eliminates most of the Z bang of a print. Furthermore, the solid XY gantry gives extruder ability to move at an insane speed, up to 500mm/s 10K acceleration safely. Voron 2.4 is also good for home and office user to do prototyping. Its total size is smaller compared to same grade printers on the market. Its insanely fast heat-up speed and print speed gives you a new concept to replace traditional prototyping method with 3D printing.
Voron v0 Essential
Mean Well SE-450-24
Mean Well is one of the most reliable power supply manufacturer in the industry.
It is the one and only choice when it comes to 3D printer’s power supply.
We import our Mean Well PSU from legitimate Mean Well’s distributor.
Do not cheap out such an important part as it may cause safety issue.
You need a reliable power supply. Trust only genuine parts!
BIGTREETECH TFT35 E3 v3.0
BIGTREETECH has designed this TFT35-E3 v3.0 for Ender 3 and Ender 3 Pro.
It is a direct swap for the original display providing better touch experience and screen resolution.
It works best with a BIGTREETECH SKR board.
TOUCH screen firmware are at BIGTREETECH’s Github.
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
BIGTREETECH TFT70 | TFT50 | TFT43 v3.0

BIGTREETECH TFT70 | TFT50 | TFT43 v3.0
BIGTREETECH has gone further to create huge size TFT screens for all TOUCH Screen lovers!
Three sizes are added into the TFT family:
All of them comes with RGB color screen and dual mode.
Users can switch between TOUCH and knob control in second.
TOUCH screen firmware are at BIGTREETECH’s Github.
It is highly configurable. Users can customize the firmware and image on the screen.
Enjoy the love of a 7-inch color screen!
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
BIGTREETECH TMC2208 v3.0

BIGTREETECH TMC2208 v3.0
TMC2208 is one of BIGTREETECH’s best selling stepper motor driver.
It is a super silent stepper motor driver. It has a good heat dissipation.
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
BIGTREETECH TMC2209 v1.2

BIGTREETECH TMC2209 v1.2
TMC2209 is BIGTREETECH’s best selling stepper motor driver.
It is an ultra-quiet stepper motor driver.
It has a good heat dissipation.
It allows you to run the high current motor with no heat overheat issues.
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
BIGTREETECH TMC2226 v1.0

BIGTREETECH TMC2226 v1.0
TMC2226 is BIGTREETECH latest generation stepper motor driver.
It is an ultra-quiet stepper motor.
It has a better heat dissipation than TMC2209.
Marlin is currently not supporting TMC2226.
It can still be used by defining it as TMC2209.
According to Marlin developers, it works.
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
Voron v2.4 Essential
Mean Well SE-450-24
Mean Well is one of the most reliable power supply manufacturer in the industry.
It is the one and only choice when it comes to 3D printer’s power supply.
We import our Mean Well PSU from legitimate Mean Well’s distributor.
Do not cheap out such an important part as it may cause safety issue.
You need a reliable power supply. Trust only genuine parts!
BIGTREETECH TFT35 E3 v3.0
BIGTREETECH has designed this TFT35-E3 v3.0 for Ender 3 and Ender 3 Pro.
It is a direct swap for the original display providing better touch experience and screen resolution.
It works best with a BIGTREETECH SKR board.
TOUCH screen firmware are at BIGTREETECH’s Github.
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
BIGTREETECH TFT70 | TFT50 | TFT43 v3.0

BIGTREETECH TFT70 | TFT50 | TFT43 v3.0
BIGTREETECH has gone further to create huge size TFT screens for all TOUCH Screen lovers!
Three sizes are added into the TFT family:
All of them comes with RGB color screen and dual mode.
Users can switch between TOUCH and knob control in second.
TOUCH screen firmware are at BIGTREETECH’s Github.
It is highly configurable. Users can customize the firmware and image on the screen.
Enjoy the love of a 7-inch color screen!
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
BIGTREETECH TMC2208 v3.0

BIGTREETECH TMC2208 v3.0
TMC2208 is one of BIGTREETECH’s best selling stepper motor driver.
It is a super silent stepper motor driver. It has a good heat dissipation.
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
BIGTREETECH TMC2209 v1.2

BIGTREETECH TMC2209 v1.2
TMC2209 is BIGTREETECH’s best selling stepper motor driver.
It is an ultra-quiet stepper motor driver.
It has a good heat dissipation.
It allows you to run the high current motor with no heat overheat issues.
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
BIGTREETECH TMC2226 v1.0

BIGTREETECH TMC2226 v1.0
TMC2226 is BIGTREETECH latest generation stepper motor driver.
It is an ultra-quiet stepper motor.
It has a better heat dissipation than TMC2209.
Marlin is currently not supporting TMC2226.
It can still be used by defining it as TMC2209.
According to Marlin developers, it works.
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
-
Control Unit, BIGTREETECH, DIY 3D Printers, ANNEX-ENGINEERING, BLV, Prusa Bear Upgrade, Prusa Original, VORON Design, Voron 2.4
BIGTREETECH TMC2208 v3.0
Control Unit, BIGTREETECH, DIY 3D Printers, ANNEX-ENGINEERING, BLV, Prusa Bear Upgrade, Prusa Original, VORON Design, Voron 2.4BIGTREETECH TMC2208 v3.0
TMC2208 is one of BIGTREETECH’s best selling stepper motor driver.
It is a super silent stepper motor driver. It has a good heat dissipation.
- 2 Phase stepper motor up to 1.2A RMS (2.0A Max)
- Motor Supply Voltage: 4.75V – 36V
- Logic Supply Voltage: 3.3 – 5V
- UART Mode
- StealthCrop2
- Spreadcycle
- 256 Microstep
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
SKU: bigtreetech-tmc2208-v3-0 -
ANNEX-ENGINEERING, BIGTREETECH, BLV, Control Unit, DIY 3D Printers, Prusa Bear Upgrade, Prusa Original, Voron 2.4, VORON Design
BIGTREETECH TMC2209 v1.2
ANNEX-ENGINEERING, BIGTREETECH, BLV, Control Unit, DIY 3D Printers, Prusa Bear Upgrade, Prusa Original, Voron 2.4, VORON DesignBIGTREETECH TMC2209 v1.2
TMC2209 is BIGTREETECH’s best selling stepper motor driver.
It is an ultra-quiet stepper motor driver.
It has a good heat dissipation.
It allows you to run the high current motor with no heat overheat issues.
- 2 Phase stepper motor up to 2.0A RMS (2.8A Max)
- Motor Supply Voltage: 4.75V – 29V
- Logic Supply Voltage: 3.3 – 5V
- UART Mode
- StealthCrop2
- Spreadcycle
- Stallguard4
- CoolStep current control saves 75% energy
- 256 Microstep
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
SKU: bigtreetech-tmc2209-v1-2 -
ANNEX-ENGINEERING, BIGTREETECH, BLV, Control Unit, DIY 3D Printers, Prusa Bear Upgrade, Prusa Original, Tiny-M, Voron 2.4, VORON Design
BIGTREETECH TMC2226 v1.0
ANNEX-ENGINEERING, BIGTREETECH, BLV, Control Unit, DIY 3D Printers, Prusa Bear Upgrade, Prusa Original, Tiny-M, Voron 2.4, VORON DesignBIGTREETECH TMC2226 v1.0
TMC2226 is BIGTREETECH latest generation stepper motor driver.
It is an ultra-quiet stepper motor.
It has a better heat dissipation than TMC2209.
Marlin is currently not supporting TMC2226.
It can still be used by defining it as TMC2209.
According to Marlin developers, it works.
- 2 Phase stepper motor up to 2.0A RMS (2.8A Max)
- Motor Supply Voltage: 4.75V – 29V
- Logic Supply Voltage: 3.3 – 5V
- UART Mode
- StealthCrop2
- Spreadcycle
- Stallguard4
- CoolStep current control saves 75% energy
- 256 Microstep
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
SKU: bigtreetech-tmc2226-v1-0 -
ANNEX-ENGINEERING, BIGTREETECH, BLV, Control Unit, DIY 3D Printers, Prusa Bear Upgrade, Prusa Original, Tiny-M, Voron 0, VORON Design
BIGTREETECH SKR Mini E3 v2.0
ANNEX-ENGINEERING, BIGTREETECH, BLV, Control Unit, DIY 3D Printers, Prusa Bear Upgrade, Prusa Original, Tiny-M, Voron 0, VORON DesignBIGTREETECH SKR Mini E3 v2.0
SKR Mini E3 V2.0 is a perfect substitutes for beginner’s grade 3D printer.
Most of the beginner’s grade printers come with a low end 8-bit controller board just to cut cost.
In most cases, user cannot flash open-source firmware like Marlin into the factory board.
It makes DIY difficult. They also come without a bed leveling sensor.
In order to add a leveling probe and flash a updated firmware with new functions, user needs a new board.
SKR Mini E3 V2.0 is a perfect choice. It comes with 4 on-board TMC2209 stepper motor chips.
It needs no tuning at all. It is a plug and play board!
- Item Type: Control Board
- Model Number: BIGTREETECH SKR Mini E3 v2.0
- Material: 4-layer PCB
- MCU: 32-Bit ARM Cortex-M3 – ST STM32F103RCT6
- Maximum Clock Frequency: 72 MHz
- Dual Z-axis Interface
- Fan Support: 2 x CNC always on fan
- Input Voltage: DC12V – DC24V
- Current: 5A – 15A
- Support Display: ALL BIGTREETECH Screen, LCD2004, LCD12864, Ender 3 Original Screen
- Support Driver: 4 On-board TMC2209
- Support File Format: G-code
- Recommended Software: Simplify3D, PrusaSlicer, SuperSlicer, Cura, Pronterface, Repetier-host, Makerware
- Support Firmware: Marlin2.0 , Smoothieware
- Temperature Sensor Interface: TH0, TH1, TB, 3 channel 100K NTC (thermal resistance)
- Removable Fuses
- Place of Origin: Shenzhen, China
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
SKU: bigtreetech-skr-mini-e3-v2-0 -
ANNEX-ENGINEERING, BIGTREETECH, BLV, Control Unit, DIY 3D Printers, Prusa Bear Upgrade, Prusa Original, Voron 2.4, VORON Design
BIGTREETECH SKR v1.3
ANNEX-ENGINEERING, BIGTREETECH, BLV, Control Unit, DIY 3D Printers, Prusa Bear Upgrade, Prusa Original, Voron 2.4, VORON DesignBIGTREETECH SKR v1.3
SKR v1.3 is BIGTREETECH’s most famous best selling 32-bit control board.
It achieved a huge success by providing an alternative budget choice among all 32-bit control board.
SKR v1.3 is a highly reliable and DIY-able board.
Although the v1.4 is released, SKR v1.3 is still a solid budget choice over the new v1.4.
Go for a v1.3 if you don’t need Wifi capability and RGB lights.
- Item Type: Control Board
- Model Number: BIGTREETECH SKR V1.3
- Material: 4-layer PCB
- MCU: 32-Bit ARM Cortex-M3 – NXP LPC1768FBD100
- Maximum Clock Frequency: 100 MHz
- Wifi Module: No Wifi Support
- Single Z-axis Interface
- Fan Support: 1 x CNC always on fan, 1 x Frequent fan
- Input Voltage: DC12V – DC24V
- Current: 5A – 15A
- Support Display: 2.8 “TFT, 3.5” TFT, LCD2004, LCD12864
- Support Driver: TMC2226, TMC2209, TMC2208, TMC2130, ST820, DRV8825, A4988, etc.
- Support File Format: G-code
- Recommended Software: Simplify3D, PrusaSlicer, SuperSlicer, Cura, Pronterface, Repetier-host, Makerware
- Support Firmware: Marlin2.0 , Smoothieware
- Temperature Sensor Interface: TH0, TH1, TB, 3 channel 100K NTC (thermal resistance)
- Removable Fuses
- Place of Origin: Shenzhen, China
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
SKU: bigtreetech-skr-v1-3 -
ANNEX-ENGINEERING, BIGTREETECH, BLV, Control Unit, DIY 3D Printers, Prusa Bear Upgrade, Prusa Original, Voron 2.4, VORON Design
BIGTREETECH SKR v1.4
ANNEX-ENGINEERING, BIGTREETECH, BLV, Control Unit, DIY 3D Printers, Prusa Bear Upgrade, Prusa Original, Voron 2.4, VORON DesignBIGTREETECH SKR v1.4
SKR v1.4 is BIGTREETECH’s latest control board for 3D printers and CNC machines.
Carrying its predecessor’s success, SKR v1.4 quickly becomes the most famous and best selling control board in 2020.
A lot of new features are added since v1.3.
It now supports WiFi communication and RGB lights.
Unlike the SKR v1.4 Turbo, SKR v1.4 uses LPC1768 chips running at a but slower clock speed.
However, it does not lower its performance by much.
It is still a very good budget choice over the SKR v1.4 Turbo.
- Item Type: Control Board
- Model Number: BIGTREETECH SKR V1.4
- Material: 4-layer PCB
- MCU: 32-Bit ARM Cortex-M3 – NXP LPC1768FBD100
- Maximum Clock Frequency: 100 MHz
- Wifi Module: ESP-01S
- Dual Z-axis Interface
- Fan Support: 1 x CNC always on fan, 3 x Frequent fan
- Interfaces: I2C, SPI, Wifi, Closed loop drive, RGB light belt, DCDC mode power module
- Input Voltage: DC12V – DC24V
- Current: 5A – 15A
- Support Display: 2.8 “TFT, 3.5” TFT, LCD2004, LCD12864
- Support Driver: TMC2226, TMC2209, TMC2208, TMC2130, ST820, DRV8825, A4988, etc.
- Support File Format: G-code
- Recommended Software: Simplify3D, PrusaSlicer, SuperSlicer, Cura, Pronterface, Repetier-host, Makerware
- Support Firmware: Marlin2.0 , Smoothieware
- Temperature Sensor Interface: TH0, TH1, TB, 3 channel 100K NTC (thermal resistance)
- Removable Fuses
- Place of Origin: Shenzhen, China
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
SKU: bigtreetech-skr-v1-4 -
ANNEX-ENGINEERING, BIGTREETECH, BLV, Control Unit, DIY 3D Printers, Prusa Bear Upgrade, Prusa Original, Voron 2.4, VORON Design
BIGTREETECH SKR v1.4 Turbo
ANNEX-ENGINEERING, BIGTREETECH, BLV, Control Unit, DIY 3D Printers, Prusa Bear Upgrade, Prusa Original, Voron 2.4, VORON DesignBIGTREETECH SKR v1.4 Turbo
SKR v1.4 Turbo is BIGTREETECH’s latest control board for 3D printers and CNC machines.
Carrying its predecessor’s success, SKR v1.4 Turbo quickly becomes the most famous and best selling control board in 2020.
A lot of new features are added since v1.3. It now supports WiFi communication and RGB lights.
- Item Type: Control Board
- Model Number: BIGTREETECH SKR V1.4 Turbo
- Material: 4-layer PCB
- MCU: 32-Bit ARM Cortex-M3 – NXP LPC1769FBD100
- Maximum Clock Frequency: 120 MHz
- Wifi Module: ESP-01S
- Dual Z-axis Interface
- Fan Support: 1 x CNC always on fan, 3 x Frequent fan
- Interfaces: I2C, SPI, Wifi, Closed loop drive, RGB light belt, DCDC mode power module
- Input Voltage: DC12V – DC24V
- Current: 5A – 15A
- Support Display: 2.8 “TFT, 3.5” TFT, LCD2004, LCD12864
- Support Driver: TMC2226, TMC2209, TMC2208, TMC2130, ST820, DRV8825, A4988, etc.
- Support File Format: G-code
- Recommended Software: Simplify3D, PrusaSlicer, SuperSlicer, Cura, Pronterface, Repetier-host, Makerware
- Support Firmware: Marlin2.0 , Smoothieware
- Temperature Sensor Interface: TH0, TH1, TB, 3 channel 100K NTC (thermal resistance)
- Removable Fuses
- Place of Origin: Shenzhen, China
We are BIGTREETECH authorized distributor.
Our stocks are imported directly from BIGTREETECH factory.
Don’t worry about quality. It is the original.
SKU: bigtreetech-skr-v1-4-turbo -
ANNEX-ENGINEERING, BLV, Control Unit, DIY 3D Printers, Prusa Bear Upgrade, Prusa Original, Raspberry Pi, Tiny-M, Voron 0, Voron 2.4, VORON Design
Raspberry Pi 4 Model B
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ANNEX-ENGINEERING, BLV, DIY 3D Printers, LRS Series, Mean Well, Power Supply Unit, Prusa Bear Upgrade, Prusa Original, Tiny-M, Voron 2.4, VORON Design
Mean Well LRS-200-24
ANNEX-ENGINEERING, BLV, DIY 3D Printers, LRS Series, Mean Well, Power Supply Unit, Prusa Bear Upgrade, Prusa Original, Tiny-M, Voron 2.4, VORON DesignMean Well LRS-200-24
Mean Well is one of the most reliable power supply manufacturer in the industry.
It is the one and only choice when it comes to 3D printer’s power supply.
We import our Mean Well PSU from legitimate Mean Well’s distributor.
Do not cheap out such an important part as it may cause safety issue.
You need a reliable power supply. Trust only genuine parts!
SKU: mean-well-lrs-200-24 -
ANNEX-ENGINEERING, BLV, DIY 3D Printers, Mean Well, Power Supply Unit, Prusa Bear Upgrade, Prusa Original, RS Series, Tiny-M, Voron 0, Voron 2.4, VORON Design
Mean Well RS-25-5
ANNEX-ENGINEERING, BLV, DIY 3D Printers, Mean Well, Power Supply Unit, Prusa Bear Upgrade, Prusa Original, RS Series, Tiny-M, Voron 0, Voron 2.4, VORON DesignMean Well RS-25-5
Mean Well is one of the most reliable power supply manufacturer in the industry.
It is the one and only choice when it comes to 3D printer’s power supply.
We import our Mean Well PSU from legitimate Mean Well’s distributor.
Do not cheap out such an important part as it may cause safety issue.
You need a reliable power supply. Trust only genuine parts!
SKU: mean-well-rs-25-5 -
DIY 3D Printers, LRS Series, Mean Well, Power Supply Unit, Tiny-M, Voron 0, VORON Design
Mean Well LRS-100-24
DIY 3D Printers, LRS Series, Mean Well, Power Supply Unit, Tiny-M, Voron 0, VORON DesignMean Well LRS-100-24
Mean Well is one of the most reliable power supply manufacturer in the industry.
It is the one and only choice when it comes to 3D printer’s power supply.
We import our Mean Well PSU from legitimate Mean Well’s distributor.
Do not cheap out such an important part as it may cause safety issue.
You need a reliable power supply. Trust only genuine parts!
SKU: mean-well-lrs-100-24