# Ender 3v2 Neo Custom **URL:** \ **Category:** General Discussion\ **Created:** [November 20, 2023, 9:07pm UTC](https://klipper.discourse.group/t/ender-3v2-neo-custom/11749 "2023-11-20T21:07:22Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![JosevdG](https://avatars.discourse-cdn.com/v4/letter/j/b38774/32.png) [@JosevdG](https://klipper.discourse.group/u/JosevdG)\ **Post date:** [November 20, 2023, 9:07pm UTC](https://klipper.discourse.group/t/ender-3v2-neo-custom/11749/1 "2023-11-20T21:07:22Z")
### Basic Information: Printer Model: Ender 3V2 Neo MCU / Printerboard: skr mini E3 V3.0 `klippy.log` I do not have a klippy.log yet I am new to klipper and mainsail, I modified my Ender with a skr mini e3v3 board, and a sprite direct drive extruder pro. The printer has dual z (stepper driven axis). I use a Btt Pi v1.2 to connect to my pc and installed everything using kiauh. The printer I will connect using the GPIO pins. So far so good, I could find everything on Youtube. But the printer.cfg is more complicated, I can’t find good instructions on YouTube. I can’t learn from reading (I forget it very quick and I do not understand what I am reading) I need to see and hear it. ore as i could do with kiauh from the github copy and paste. It’s already getting to long so, my question to all you guys and girls is: Will the following printer.cfg work It seems to work. But when I try to heat up the extruder the printer shutsdown and after a few seconds it start up again. I can’t find the cause of this problem. I now uploaded the klippy.log perhaps someone out there can help. # This file contains common pin mappings for the BIGTREETECH SKR mini # E3 v3.0. To use this config, the firmware should be compiled for the # STM32G0B1 with a “8KiB bootloader” and USB communication. # The “make flash” command does not work on the SKR mini E3. Instead, # after running “make”, copy the generated “out/klipper.bin” file to a # file named “firmware.bin” on an SD card and then restart the SKR # mini E3 with that SD card. # See docs/Config\_Reference.md for a description of parameters. [include mainsail.cfg] [stepper\_x] step\_pin: PB13 dir\_pin: !PB12 enable\_pin: !PB14 microsteps: 16 rotation\_distance: 40 endstop\_pin: ^PC0 position\_endstop: 0 position\_max: 235 homing\_speed: 50 [tmc2209 stepper\_x] uart\_pin: PC11 tx\_pin: PC10 uart\_address: 0 run\_current: 0.580 hold\_current: 0.500 stealthchop\_threshold: 999999 [stepper\_y] step\_pin: PB10 dir\_pin: !PB2 enable\_pin: !PB11 microsteps: 16 rotation\_distance: 40 endstop\_pin: ^PC1 position\_endstop: 0 position\_max: 235 homing\_speed: 50 [tmc2209 stepper\_y] uart\_pin: PC11 tx\_pin: PC10 uart\_address: 2 run\_current: 0.580 stealthchop\_threshold: 999999 [stepper\_z] step\_pin: PB0 dir\_pin: PC5 enable\_pin: !PB1 microsteps: 16 rotation\_distance: 8 endstop\_pin: probe:z\_virtual\_endstop position\_max: 250 position\_min: 0 [tmc2209 stepper\_z] uart\_pin: PC11 tx\_pin: PC10 uart\_address: 1 run\_current: 0.580 hold\_current: 0.500 stealthchop\_threshold: 999999 [extruder] step\_pin: PB3 dir\_pin: PB4 enable\_pin: !PD1 microsteps: 16 gear\_ratio: 42:12 rotation\_distance: 26.359 nozzle\_diameter: 0.400 filament\_diameter: 1.750 heater\_pin: PC8 sensor\_type: EPCOS 100K B57560G104F sensor\_pin: PA0 control: pid pid\_Kp: 23.561 pid\_Ki: 1.208 pid\_Kd: 114.859 min\_temp: 0 max\_temp: 300 pressure\_advance: 0.050 [tmc2209 extruder] uart\_pin: PC11 tx\_pin: PC10 uart\_address: 3 run\_current: 0.650 hold\_current: 0.500 stealthchop\_threshold: 999999 [heater\_bed] heater\_pin: PC9 sensor\_type: EPCOS 100K B57560G104F sensor\_pin: PC4 control: pid pid\_Kp: 70.405 pid\_Ki: 1.229 pid\_Kd: 1008.553 min\_temp: 0 max\_temp: 130 [heater\_fan heatbreak\_cooling\_fan] pin: PC7 [heater\_fan controller\_fan] pin: PB15 heater: heater\_bed heater\_temp: 50.0 [fan] pin: PC6 [mcu] serial: /dev/ttyAMA0 baud: 250000 restart\_method: command [printer] kinematics: cartesian max\_velocity: 500 max\_accel: 3000 max\_z\_velocity: 5 square\_corner\_velocity: 5.0 max\_z\_accel: 100 [bltouch] sensor\_pin: ^PC14 control\_pin: PA1 x\_offset: -31.0 y\_offset: -38.0 z\_offset: 2 speed: 3 samples: 2 samples\_result: median sample\_retract\_dist: 6.0 samples\_tolerance: 0.01 samples\_tolerance\_retries: 3 [safe\_z\_home] home\_xy\_position: 117.5,117.5 speed: 100 z\_hop: 10 z\_hop\_speed: 5 [bed\_mesh] speed: 120 mesh\_min: 30,30 # Need to handle head distance with cr-touch (bl\_touch) mesh\_max: 189,189 # Max probe range probe\_count: 5,5 fade\_start: 1 fade\_end: 10 fade\_target: 0 algorithm: bicubic [screws\_tilt\_adjust] screw1: 67, 42 screw1\_name: front left screw screw2: 237.60, 42 screw2\_name: front right screw screw3: 237.60, 212 screw3\_name: rear right screw screw4: 67.60, 212 screw4\_name: rear left screw horizontal\_move\_z: 10 speed: 50 screw\_thread: CW-M4 # Use CW for Clockwise and CCW for Counter Clockwise [board\_pins] aliases: # EXP1 header EXP1\_1=PB5, EXP1\_3=PA9, EXP1\_5=PA10, EXP1\_7=PB8, EXP1\_9=, EXP1\_2=PA15, EXP1\_4=, EXP1\_6=PB9, EXP1\_8=PD6, EXP1\_10=\<5V\> [virtual\_sdcard] path: ~/printer\_data/gcodes [output\_pin beeper] pin: PB5 ### Describe your issue: … [klippy.log](https://klipper.discourse.group/uploads/short-url/hFOdjawHYk8aIowLpid0IyknMPT.log) (466.8 KB) ---
**Author:** ![hcet14](https://avatars.discourse-cdn.com/v4/letter/h/ecd19e/32.png) [@hcet14](https://klipper.discourse.group/u/hcet14)\ **Post date:** [November 20, 2023, 9:26pm UTC](https://klipper.discourse.group/t/ender-3v2-neo-custom/11749/2 "2023-11-20T21:26:46Z")
> [@JosevdG](#): > > Will the following printer.cfg work I would start comparing your printer.cfg to the printer board schematics. > Good luck, hcet14 ---
**Author:** ![JosevdG](https://avatars.discourse-cdn.com/v4/letter/j/b38774/32.png) [@JosevdG](https://klipper.discourse.group/u/JosevdG)\ **Post date:** [November 20, 2023, 10:42pm UTC](https://klipper.discourse.group/t/ender-3v2-neo-custom/11749/3 "2023-11-20T22:42:31Z")
Hi The pin layout should be correct, I did take that from the bigtreetech github for the board I use. But I do not have the standard Ender 3v2 extruder and hotend, the pins should be correct. But as I already wrote I have to read it all and unfortunatly I can’t ---
**Author:** ![hcet14](https://avatars.discourse-cdn.com/v4/letter/h/ecd19e/32.png) [@hcet14](https://klipper.discourse.group/u/hcet14)\ **Post date:** [November 23, 2023, 6:30pm UTC](https://klipper.discourse.group/t/ender-3v2-neo-custom/11749/4 "2023-11-23T18:30:58Z")
> [@JosevdG](#): > > But as I already wrote I have to read it all and unfortunatly I can’t Sorry, I missed that. Yes, your pin layout looks good. Bed and extruder are not heating at all. Your problem is this ‘mcu’: Unable to open serial port: [Errno 2] could not open port /dev/ttySO: [Errno 2] No such file or directory: ‘/dev/ttySO’ Try to read here [How-To Trouble-Shoot](https://klipper.discourse.group/t/how-to-trouble-shoot/6326) Search for " Connection Problems to the Printer Board" ---
**Author:** ![Sineos](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/sineos/32/18_2.png) [@Sineos](https://klipper.discourse.group/u/Sineos)\ **Post date:** [November 23, 2023, 7:32pm UTC](https://klipper.discourse.group/t/ender-3v2-neo-custom/11749/5 "2023-11-23T19:32:36Z")
Actually, I’m not sure that I understand what you are reporting. The klippy.log you attached shows a proper startup and connection of your board at its end. Please do: 1. Reboot your Btt Pi 2. Verify that you see the bed’s and hotend’s temperature in the webinterface 3. Provoke the error you want to report 4. Provide a new klippy.log ---
**Author:** ![JosevdG](https://avatars.discourse-cdn.com/v4/letter/j/b38774/32.png) [@JosevdG](https://klipper.discourse.group/u/JosevdG)\ **Post date:** [November 23, 2023, 7:36pm UTC](https://klipper.discourse.group/t/ender-3v2-neo-custom/11749/6 "2023-11-23T19:36:56Z")
Thanks for your replies, the problem is solved. The Btt Pi is just a little different than the raspberry so is its connection. Thanks José ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/klipper/original/1X/64419bf2aac6639e6ef5cef200dcd456b0a01ac3.png) [@system](https://klipper.discourse.group/u/system)\ **Post date:** [December 24, 2023, 5:37am UTC](https://klipper.discourse.group/t/ender-3v2-neo-custom/11749/7 "2023-12-24T05:37:19Z")
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