BIGTREETECH SKR Mini E3 V3.0 32 Bit Control Board Integrated TMC2209 UART Stepper Driver Supports Marlin/Klipper Compatible Ender 3/Ender 3 Pro/Ender 3 V2 Ender 5 3D Printer Motherboard

Summary: Great motherboard, just make sure you have a connector for you hotend fan if installing in an ender 3 v2Review and experience:I bought this after I had kinda given up on the printer. Beforehand I had a setup where it was a Ender 3 v2 with a cr touch, dragonfly hotend, raspberry pi 4B (for klipper), orbiter v2, and dragonfly hotend. I got this on a Black Friday deal and decided to install it on my printer. I will admit setup was a bit difficult because I had to redo the configuration files in klipper and get all the driver settings correct but after that I have been tuning it and it works wonderfully. I previously had issues with my orbiter v2 with the old creality 4.2.7 board even though I had tuned the vref on it and got the multimeter out to make sure it was correct. But after switching to this board and putting in the driver settings I haven’t had an issue with it since. The only thing I didn’t like about the board is the way the hotend fan gets plugged in but that just was because I had an ender 3 v2 that didn’t have the connector on the fan already. Other than that I would give it a 11/10 because it was easy to set up, easy to use, and overall improved my printer by leaps and bounds.

Installation was little tricky but relatively straightforward definitely need a board diagram for sure as alot of labels have there own names not corresponding to the same names on original ender 3 pro main boardworks well right out of the box, truly is plug and play i did absolutely no firmware changes and its working as if it came from the factory that way i literally wired it up powered it on leveled the bed and started a printTouchscreen has some really nice additions that make life alot easier like bed leveling gecoded points , direct gcode input and screen responds to touch really wellThe USB flash drive port is a much loved feature that i quite enjoymy print quialty is very much improved i can visually see the differenceAnd omg is this thing quiet ! The fans are louder than the printer granted i kinda like the old robotic sounds i found it kinda soothing and cool sounding but that sound is completely gone replaced with only the sound of the hotend fanMy only complaints areThe out of box firmware does not home or default the printer head when you stop a print it has a delay and just stops on top of the print but this can be fixed in the firmware easly by the userThere needs to be a auto home buttion added to the bed leveling menu as well or it just auto homes first before giving acess to the bed leving menu once selectedWireing diagram should come with the unit in the box in paper formAlso some cable management items like a wire loom and a few zip ties would be niceBut all in all its a 10 of 10 for me so far now im just waiting for my bl touch to show up

Awesome upgrade that gives you more ports for media to print from, allows you to print at a higher speed with the right settings, easy to install, fit well, and doesn't seem to use more wattage than the factory system. Very sturdy piece

While this board is compatible with the CR10 S5, there are a number of things you should know before buying* If you plan to run klipper, the TFT display is not compatible without a decent amount of additional wiring to your raspberry Pi* When running a BLTouch, the instructions are WRONG. You must attach the "sense" wire to the Z endstop plug (PC2 in Klipper). It will not work in the main IO pins. The rest of the BLTouch wires to connect to the IO slot as the instructions indicate.* You will need to put new connectors/crimps on the end of your BLTouch. One side will get swapped to Dupont connectors, the other to JST connectors.* While it supports dual Z, it uses a single stepper driver so the Z screws cannot be operated independently (You cannot do gantry leveling)* You will need to build a splice cable as there are not enough fan headers for all the fans in the CR10 S5 (You will need to make a split connector for both the fans in the controller case)* The USB & SD slots do not face the correct way in the CR10 S5. You will need to make cutouts in your case to run the USB cable. The USB card can only be accessed by opening the controller case.Now that the bad things are out of the way, here's the good.* This is INSANELY quiet. It is way quieter than my Ender 3 with the Creality brand silent board.* Tons of features and works great with Klipper.* Speed is every bit as good as the stock board (that's mostly limited by the size of the moving bed)

Connectors were a challenge, due to small format, worked without any issues