BIGTREETECH Manta E3EZ V1.0 Mainboard 32 Bit Silent Control Board Work with CB1/CM4 Support Klipper Drop-in Motherboard for Ender 3 Compatible with EZ2209 EZ5160 Stepper Motor Driver

I was hesitant seeing the way it was delivered and the high return notification. I gave it a chance and I am very impressed. Although the seal was broken on arrival and the duck was missing (guess a employee wanted it) after creating my own klipper config file (which is available at reddit and klipper discord config section) and changing everything over it has been a fantastic experience. I swapped out a stock sv06 plus board to this skr3ez board. I have dual z with dual zalign , great power to steppers, and there quiet, I have sensorless homing working great and using stealthchop (which I was told No board can do) this board idles around 40-50C I do have a fan on it for cooling. And it's doing all this on a Meanwell 350watt power supply.

First board arrived non-functional, however, they quickly sent me a replacement and it worked great. Easy to program with Marlin. Pronterface worked with absolutely no issues for fine tuning/calibration. Runs very quiet.

Excellent ! Allows for a 12v fan option which is just what I wanted. Simple install and works well.

The SKR3 controller board is quite a bit faster @ 480 MHz "claimed" clock rate than BTT’s previous controller line up. Installation requires a different board enclosure, since the SKR3 EZ hole pattern has changed. I believe the SKR3 non EZ has the same hole patter as before. There are plenty of SKR3 EZ enclosure model on the Internet, essentially ready to print.The controller has some firmware installed, but who knows what it does. So you'll need to compile firmware that matches your printer.* Don't disassemble your existing printer yet, if you have only one, hi, hi. ***********************************************************************************************************************For those that upgraded from a previous version, using sensor-less homing on Y / X axis, *** be aware if you removed the Diagnostics pin (TMC2209) in one or another way, you'll need to reinstall it again. *** Otherwise your sensor-less homing will not work. It requires the diagnostic pin to be connected to the socket. The small jumper, used on the SKR3 EZ, will direct the signal. This is not required with the EZ TMC2209 driver, aside they don' have these pins.*********************************************************************************************************************Other than that, it will work just as your previous setup. Perhaps you may have had the hot-end cooler fan connected to the HE1 header. In this case the fan runs on "board voltage supply". If the DC/DC module is installed, one has now the choice to select 5V or 12V fan supply (buck converter) as supposed to the board voltage. The Hot-End fan can also be moved to one of the fan header (requires modification of firmware). There are now 3 controllable fan header that will get their supply voltage from the DC/DC module (if Installed and setup). I guess this option is useful to original Prusa printer having 5V fans.I have another printer that runs the SKR3EZ board with TMC2209EZ driver, for a while. The only thing, I believe, that has not caught up to these boards, is probably the Marlin Firmware. This printer does on occasion some unexpected stuff (deviating from a certain sequence), but I think it is firmware related. Otherwise it prints flawless!I recommend some form of cooling to the driver, perhaps simply a fan blower at the bottom opening of the board enclosure?

Purchased this board to go in my ender 5. Followed all directions and was unable to get a working firmware. Located very minimal references for this particular chip. Most support out there is for the 743 chip, not the 723. Marlin from what I could find is not compatible with 723. It could be, but through my hours of rooting around and following tutorials, 723 isn't in the cards. Followed multiple guides to setup klipper to no avail. Many hours wasted on this board.Edit:I struggled with this board for a few days, there is nearly no support for the board anywhere. After mixing and matching a few different tutorials, I was finally able to get this board up and running. As of right now, the board is running and it is much quieter than the stock 5 Plus board. This was a great learning experience though.

I purchased this board to replace the MKS Gen v1.3 board in my Black Widow. I received the board Friday evening, I carefully went over the pinouts and layout to make sure everything was in the correct configuration and everything was very close. Very little changes required to connect the board to my printer. I went through the firmware and set all the features and specs I needed to with a couple iterations do to my BL-Touch and stepper drivers giving me some trouble. I'm also using a chamber and was able to get that setup on the motherboard pretty quickly as well even though it does not have a default setup listed in the instructions or a pin definition in the board.h file for this motherboard. Once I nailed that all down I had the printer going by Sunday evening!!! I am pleased with the board and the support for it in marlin.

Came with the STM32H723 550MHZ chip. The EZ5160 Drivers at 48v makes a world of difference with speed and acceleration.

I love big tree Tech. You get a lot of bang for your buck with their products and they're always super easy to install. Granted I feel like they do have some issues with bootloaders and quality control at times but overall their products are great. This board was super easy to set up and I love having the CM4 on the actual main board rather than running a separate Raspberry Pi. I don't know if it just seems faster or if it actually is but I love how this machine is running now.