Ace Hardware St Charles Mn Epoxy Plastic Repair Kit
As many of you know, BigTreeTech (BIQU) is the manufacturer of one of the most widespread electronics on the market place, the famous SKR v1.four / SKR v1.4 Turbo, of which we wrote an all-encompassing article ago some fourth dimension: Complete guide SKR v1.iv / v1.four Turbo with TMC2209 drivers and Sensorless.
At present BigTreeTech has launched a new revision of these electronics, whose proper name is BTT SKR 2, to try to replicate the success of its previous version with powerful hardware and some very interesting news.
And as we usually practice in 3DWork, we are going to clarify a petty what these new electronics offer and how nosotros can configure them to get the virtually out of them in our 3D printers.
Let's finally become to the article, I hope and hope that it will be of employ to you:
Brief introduction
Earlier continuing with the article I would like to remind you lot every bit always that we take a large customs in our Telegram channel. There we usually share all our doubts and experiences. If you lot want to exist office of information technology, do not hesitate to join u.s.a..
Y'all tin likewise detect a lot of help or resources directly in the Telegram group of SKR, as well as other help guides in our Telegram Bot @ThreeDWorkHelpBot
Where can I purchase the BigTreeTech SKR 2?
I exit yous some links to the electronic ones mentioned in today's commodity. It is my duty to tell yous that they are links to online stores (affiliates).
If y'all employ them, the price of the product will be the aforementioned every bit if you log in regularly, merely 3DWork will have a modest committee left to assistance maintain this website (and I will exist eternally grateful).
| BigTreeTech SKR 2 |  |  |  |
If y'all wish, and every bit an alternative, you can also utilize our Markets.sx component search engine, where yous can compare prices on different sites (Amazon, Aliexpress, Banggood, etc.) with a single search very easily.
What's new in the BigTreeTech SKR 2?
As always, we start with the diagrams of the board, which will aid u.s. quickly and visually to run into all its innovations and improvements introduced with a format, in terms of size, very like to that of previous electronics.
Some of the important improvements that we can find in this new SKR 2 electronics from BigTreeTech are the following:
- New and more powerful microprocessor (or MCU)
- Protections on the thermistor connectors
- Thermal protections
- Driver protection (if they are placed in the wrong position)
- Sensorless jumpers and avert cutting pins in drivers
- Defended wifi port
- 3 controllable fans
- SD interface improvements in addition to including a USB connector
- Lath
- Pinout
- Size
Technical specifications
In the following list you tin find the technical specifications of the SKR 2 electronics:
- Size 110mmx85mm, in the previous section y'all take a diagram of the board
- ARM Cortex-M4 STM32F407VGT6 MCU at 168Mhz … a existent fauna !!!
- Supported input voltages DC12V and DC24V, using 3.3V as working voltage
- Marlin, RepRap Firmware and Klipper firmwares back up
- Wifi connector for ESP-12S / ESP-07S especially useful for utilise with RepRap Firmware
- I2C expansion connectors, Servos, Leveling, Relay, UPS, Filaments, Leds, etc …
- Driver back up TMCxxxx, DRV8825, A4988, etc … supporting SPI, UART, STEP / DIR interfaces
- Connectors for drivers Ten, Y, Z (with double motor output), E0, E1 … five in total each with interface for connection to servo motors
- Support for serial touch screens, SPI touch screens and LCD displays
- Supports kinematics (depending on firmware) XYZ, delta, kossel, Ultimaker, CoreXY, etc …
A deeper await at this electronics
As nosotros have previously mentioned, the SKR ii is an evolution of the old SKR i.four introducing a large number of improvements and updates. Permit's go into particular below.
MCU, while its sisters SKR ane.3/1.4 mounted MCUs LPC176* the SKR 2 has improved this aspect including an ARM Cortex-M4 STM32F407VGT6 MCU at 168 Mhz that will give extra power to our printer.
Thermistors, every bit nosotros accept already mentioned, another of the great improvements is the inclusion of protections in the parts where normally by manipulation or external hardware failure they can affect our board. In this example, the thermistors have protection to avoid shorts that can destroy our board.
Fuses, changing from traditional blade fuses to replaceable SMD fuses that greatly better the final epitome of the board, every bit you can come across in the epitome below.
MOSFETS, a very of import part of our boards are the MOSFETS in accuse of managing our bed and hotend also as the fans. In the SKR ii these have been improved using a HYG090N06LS1C2 in add-on to additionally including a G045P03 that serves to protect the plate confronting possible thermal leaks.
Fans (or fans), adding 3 controllable fans perfect to use equally a layer fan, controlled cooling of the hotend and electronics. Yous have more information on how to use these in our fan guide at 3DWorkLabs.
USB and SD Bill of fare, the SD Card part has been improved by using SDIO mode and calculation a vertical USB interface.
WiFi, although its sisters already had a connector for the WiFi connection, in the new SKR two electronics it has been improved and fabricated compatible with ESP12S or ESP07 modules. Specially for later on apply with RepRap Firmware.
Expansion, although they are not improvements with respect to previous versions, we remind you of the possibilities of improving our printer by adding leveling sensors, relay modules, UPS modules, Neopixel, etc …
- BLTouch
- Relay
- UPS
- Neopixel
- Raspberry
- Motor/Servo
A great comeback for our printers that tin brand it easier for us to have a first layer as perfect as possible is the installation of a leveling sensor such as the BLTouch, as information technology is one of the most versatile.
You have much more detailed information in our BLTouch Guide or if yous prefer an inductive sensor in this other Inductive Sensor Guide.
It gives usa a control of the on or off of our automobile in a controlled way, such equally turning information technology off once the press is finished.
Similar the relay module, the UPS allows us to deport out a right emergency shutdown, especially if we use PLR (Power Loss Recovery) / print restoration in the event of power failure. You lot can find more detailed information in the following guide.
Although it is not a direct improvement in the apply of the printer, the inclusion of a controllable led strip is very useful, either as lighting of the press surface area also equally issue management.
We encourage yous to review the Neopixel guide where you will find more detailed information.
If we desire to manage our printer remotely, something very interesting and powerful, nosotros tin can employ Octoprint for example that is installed on a Raspberry normally.
We tin connect this by the USB cablevision or directly using the GPIO of our Raspberry the TFT connector (or any other serial on the lath like the one establish in the Wifi port).
The SKR 2 has interfaces to connect servo motors following the following scheme:
Drivers, without a incertitude one of the big changes in this revision on the sometime SKR i.iii/one.4 electronics is how the drivers interact with the rest of the electronics past including protections.
These protections will prevent the wrong connection of our drivers as well as the inclusion of the much requested jumper to enable sensorless.
This unfortunately was eliminated in SKR 1.iv and forced us to "mutilate" our drivers in the case of axes other than X, Y or in the case of non using Sensorless, nearly which you tin can observe more data in our Sensorless guide.
You tin review the different options in the available interfaces in the SKR 2 drivers in the following images:
- UART
- SPI
- Footstep/DIR
- SENSORLESS
Important Notation!!!
The offset SKR 2 units chosen REV A had a design/component problem that precisely caused the failures that information technology was intended to solve in the TMC drivers.
This error was chop-chop stock-still and all SKR 2 electronics for sale are REV B version (with the new component corrected). In the post-obit Google Docs certificate yous can detect more technical information nearly the trouble with more details.
And of class, if you have an affected electronics, BigTreeTech offers iii solutions that go from the refund of the price to the replacement of the affected components. Y'all can find information virtually it in this other link: Solve problem in affected electronics.
Firmware configuration
As ever, all Bigtreetech boards pay special attention to maximum compatibility with the nearly popular firmwares on the market.
In this case, the SKR 2 ensures optimal support for Marlin, RRF or Klipper firmwares, which means practically any 3D printing environment.
Firmwares Marlin
We suggest you to follow our Guide to "cook" your own Marlin that we have in the /Marlin department of our Telegram assist bot @ThreeDWorkHelpBot
You tin observe the sources of the official firmware here.
Modifying "Platformio.ini"
In this file we must indicate the chipset that our board has, so we must await at the start of the file for the value "env_default" and change it to the following:
default_envs = BIGTREE_SKR_2 Modifying "Marlin/configuration.h"
We advise you to add a comment to any line that nosotros modify, since later it volition be much easier for us to find our changes for time to come consultations. For this nosotros tin can add:
In the case that you do not already have a comment, the line ... // 3DWORK In case you already have a comment ... // 3DWORK ... We volition starting time by correctly configuring the Serial and BAUDRATE for this machine, something key for the correct operation of our TFT, USB or WIFI connection.
#define SERIAL_PORT ane // 3DWORK SKR 2 ... #ascertain BAUDRATE 115200 // 3DWORK SKR 2 ... #define SERIAL_PORT_2 -ane // 3DWORK SKR 2 ... #define SERIAL_PORT_3 iii // 3DWORK SKR 2 Now we will ascertain our MOTHERBOARD, which, as in the "Platformio.ini" file, indicates the type of chipset that our board carries and that allows Marlin to apply ane pin configuration or another.
#ifndef MOTHERBOARD #define MOTHERBOARD BOARD_BTT_SKR_V2_0_REV_B // 3DWORK SKR 2
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