BIGTREETECH SKR Mini E3 V3.0 Control Board + TFT35 E3 V3.0.1 Graphic Smart Display Panel Board New Upgrade 3D Printer Parts for Ender 3, Ender3 Pro, Ender 3 V2

This mainboard was by far the best upgrade to my Ender 3 Pro (MicroSwiss all-metal hotend is a close second). The TMC 2209 drivers make the steppers so quiet that I sometimes forget it is actually doing something (although there is the fan noise). The added space on the EEPROM was perfect for fitting all the features I wanted into my Marlin build (Linear Advance, Auto-Bed leveling, and Junction Deviation in particular). Not entirely sure why BIGTREETECH only lists 256KB...it is actually 512KB which allows me to compile 'bloaty' stuff (PIDBEDTEMP, M503, boot images, extra menu items for LCD, etc.) into the firmware and not have to worry about saving every last little byte. Installation wasn't difficult, but it was frustrating as Creality hot-glued everything to their stock board. Took a long time to get that stuff off without damaging anything. Came pre-loaded with a recent version of Marlin and was easy to flash to a custom build by simply dropping a 'firmeware.bin' file onto SD card and turning the printer on. A nice feature is that after it updates the firmware, it renames the file to 'firmware.cur' so it does not try to reflash every time you turn the printer on (the bootloader I flashed to my stock board didn't do this). BLTouch & Auto-Bed Leveling I did have some trouble configuring the firmware for ABL using the BLTouch at first. Most guides out there assume you are plugging into the Z-Stop on the board, but this board has the 5-pin header for BLTouch (which was convenient to build a 5-pin DuPont connector right to the board instead of separate 3-pin and 2-pin connectors). In your configuration.h, make sure that #define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN is commented out and that you are using #define USE_PROBE_FOR_Z_HOMING. One other thing I had to change was #define Z_MIN_PROBE_PIN PC14. PC14 is the Z-endstop pin from the 5-pin header. The pin set to this by default will not work. In configuration_adv.h, PROBE_OFFSET_WIZARD is a really handy menu option to help set the z-probe offset value. There are other minor things you have to change to get ABL to work, but all the guides out there cover that in great detail. The Instruction Manual does include a link to pre-compiled Marlin binaries for this board. I believe from that page the 'firmware-bltouch.bin' would have worked for me using the 5-pin Z-Probe header, however the webpage is unclear and I wanted more control over what features were in my firmware. Would be nice if they supplied the configuration.h and configuration_adv.h files for these builds so that users know what's in them. Extra Stuff I bought the kit with the Mainboard, BLTouch and no touchscreen display. Be aware that the wires for the BLTouch probe are nowhere near long enough to reach your mainboard. You WILL have to do custom wiring or need to buy a BLTouch extension cable (1-meter should be long enough). This kit does NOT come with a bracket for the BLTouch either. I printed one out from Thingiverse and it works great, but if you prefer a metal bracket, you'll have to buy it separate from this. The kit does have appropriate screws/washers/springs to install the BLTouch. It is pretty clear in the description and pictures that it would not come with the bracket or long-enough cabling, however some folks might not notice or realize they need these things and be very disappointed. Overall a great board and an awesome upgrade that would really only be better if the documentation was more specific instead of a few pictures and incoherent sentences. In particular, configuring Marlin for BLTouch using this board's 5-pin header (notably the PC14 pin). Oddly, the BIGTREETECH configuration files specifically for this board on GitHub for Marlin do NOT have the pin defined as PC14. Despite a few challenges, this is still 5-stars all around because this upgrade is not designed for people who like for things to 'just work' or simple plug n' play. Go buy a more expensive printer if that is what you want.

I got the SKR Mini E3 V2.0. At first, I was going to add a boot loader to the Creality stock board to add additional Marlin firmware features. Why bother? The SKR Mini E3 has all of that and is a really nice drop-in replacement for the Ender 3 Pro. It works well out of the box, but I ended up compiling the latest Marlin 2.0.6 firmware anyway. The boot loader makes it easy, just add firmware.bin to a flash card, insert and turn on the printer. The firmware loads in 10 seconds. Included is a 128 MB flash card that I use for this firmware.bin and nothing else. Compiling the firmware.bin with VSCode/PlatformIO requires watching Teaching Tech's youtube video. The attached pictures are from Teaching Tech and they helped me with the install wiring from old board to new. I am also using this new board with the stock Ender 3 display. No issues there and the original display works well with Marlin. Once you get this running, you will rejoice at how quiet the stepper motors are. The TMC 2209 drivers have everything to do with this. This is a great option to upgrade the motherboard and the price is better than the Creality Silent Board. A few of the options are moved around in Marlin firmware, like AutoHome and Preheat PLA, but once you find them, it is easy to work with. I love the mesh bed leveling feature where the firmware takes you to 9 different points on the bed, keeping the steppers locked, while using the display dial to control the Z motor axis to make tiny adjustments. Just keep the sheet of paper under the nozzle and feel away. Manual bed leveling was never this easy. The processor then auto-corrects for bed imperfections to get the best bed adhesion. Make sure that your Start GCode includes M420 S1 after G28 (G28 disables the mesh). I am using a borosilicate glass bed and there are indeed slight imperfections that this can accommodate for. This SKR Mini E3 V2.0 board rocks.

This is a detailed 2 part review please take time to read.... 1.) This board is amazing! Installation was a breeze just recommend to take a before photo of the old board wiring before beginning and then be sure to pay attention to the wiring diagram online from BTT and after a little bit of time compiling the firmware on the card and uploading to new board the printer runs like a dream. so quiet you don't even know its printing all you can hear are the fans cooling. I do recommend watching the video on installing this board and compiling the firmware that's on YouTube by Chris's Basement very helpful. 2.) Now on the back end of things the first board quit working after a few days couldn't get it to reset or work again even after re flashing the firmware. Amazon did replace free of charge and sent another out to me, however it was shipped in its own little box it was NOT placed into an amazon mailer of any kind no bubble mailor no outer box with cushioning there was nothing but a shipping label on the outside so of course the board was damaged in transit and I couldn't even use it. Since this was already a replacement sent out they could not send another one to me just a refund for the purchase price. This was ok however now I was left with no board for my printer and I purchased this board when it was on a one day sale and since the price had already increased again they could only refund the sale amount originally paid and now I must come up out of pocket the difference to re order one more time and hope for the best on the third attempt.

cant fault it, its quiet, great screen.. i aint ven tinkered with the jumpers yet... out the box im happy... ditched my 4.2.7 for this, so glad i did

I bought an Ender 3 Pro last December and I've spent a bit of money and time on various upgrades. The last real upgrade I wanted was the motherboard, as I understood that the 1.2 version of this board was far superior to the stock board. Luckily this 2.0 version was released before I got round to purchasing the board so I took the chance even though it was quite a bit more expensive. The swap over took about half an hour (I took my time and took photos of the wiring before unplugging everything) and it was relatively easy even for me - I'm not the most techinically minded chap if I'm being honest. Wow what a difference. The stepper motors are ridiculously quiet - literally the only noise you can hear is the fans. Time will tell if it improves print quality for me - my machine is dialled in and prints well anyway, however I have seen others mention it does improve aspects of the print. There are a ton more options and the menus are blazingly quick. I'm not going to make use of the BLTouch functionality as I have no issues levelling with paper (good springs!) but it's nice to know I have the option. My printer is probably as good as it's going to get, and I feel this was very much worth the money. Finally, if you're worried about having to mess about with firmware and compiling and the like - don't be. It's literally plug and play - unless you want the BL touch. If that's the case there is a lot of help out there.

A great 32 bit 3d printer board that works great with the Creality Ender 3 Pro and fits the mounting screws in the original enclosure. However as there use external stepper drivers the heatsinks rest on the fan of the Creality enclosure. The fix is a simple case of unscrewing the enclosure slightly. But why bother with external stepper drivers ? If the stepper motor goes on a board with integrated drivers it's game over. But boards like the SKR E3 Dip, simply swap out the failed stepper driver and off you go again.

Ombouw Ender3

It seems I was either sent someone else's return, or the 'out of the box' experience here is just awful. The 'BL Touch' of theirs has no mounting hardware, no instructions, screws all loose in the box. The main-board is just in a brown cardboard box, was in an anti-static bag, no instructions, no anything. Just the board. I followed multiple guides (including their own Github info) and the device cant seem to be flashed. So its stuck with firmware that wont recognize the existing BLtouch I have etc. The whole exercise has just wasted weeks of time (delivery and return to the states), cant say i'd recommend this to anyone.