Marlin VS klipper

There is _a lot_ wrong with Marlin. It is a complex codebase, full with ancient artefacts, litterred with preprocessor ifdefs every 2-3 lines of code, dynamic includes in the middle of CPP files, etc[1]. It's about as unreadable as C++ code gets--well, I guess it's not template metaprogramming.

Klipper by contrast is a breeze to read through[2].

I am very grateful for Marlin, for all of reprap, and everyone who has contributed to it. But saying there is nothing wrong with it is straight up misguided.

[1]: https://github.com/MarlinFirmware/Marlin/blob/bugfix-2.1.x/M...

[2]: https://github.com/Klipper3d/klipper/blob/master/src/lcd_hd4...

I think you are mistaken. I can't speak for implementations preceding the Ender 3 V2, so what you're saying may have been true at some point for other machines. However, here you can see Marlin developers confirm that there is an EEPROM on the stock E2V2 board using diagrams from Creality and photographic confirmation. Here is the datasheet for the EEPROM. Here is a thread discussing this Marlin release, and also the then-recent release of official Creality firmware which resolved the same issue. Since the stock firmware is based on Marlin, and at the time Marlin did not support this type of EEPROM, the EEPROM was not usable at launch. Any mainstream firmware (official or third-party) from the last three years will be using the onboard EEPROM unless the user intentionally specified otherwise.

pull latest Marlin from github: https://github.com/MarlinFirmware/Marlin

Also, checked the following discussion but seems like I need to update the firmware to be able to comment that like right? Temperature variance monitor tweaks by zeleps · Pull Request #23571 · MarlinFirmware/Marlin · GitHub

i spent some time and successfully rebased Kobra 2.8.2 OG firmware from an unknown Marlin ~2.0.8 frankenstein to a clean latest (as of now) release (not bugfix) 2.1.x -- v2.1.2.1 + 1 commit

As an example, check the macropocalypse in Marlin - but the actual trigger for me to start was Reprap firmware doing a floating point divide in interrupt context while targeting AVR8 core…

Any change of thermistor or to a PT100/PT1000 will require recompiling the firmware, because every type has different characteristics. Marlin uses an internal table to calculate the temperature for whatever reading it gets from the CPU's analogue-to-digital converter. It has many tables for different thermistors, but only one is ever incorporated at compile time. So you have to specify which type you're using. You can see the commonly-used types in the list in Marlin's Configuration.h file, in the section headed // @section temperature. The tables themselves are in Marlin/src/module/thermistor.

FWIW It IS open source but the GNU General Public License v3.0 rules apply. https://github.com/MarlinFirmware/Marlin/blob/bugfix-2.1.x/LICENSE

https://github.com/KevinOConnor/klipper/issues/2546 The official statement as of 2020 is that Klipper “doesn’t support touchscreens.” I’m guessing KlipperScreen was created in response to this.

# https://github.com/KevinOConnor/klipper/issues/1363

extruder confgig info https://github.com/KevinOConnor/klipper/blob/master/docs/Rotation_Distance.md

Have you tried the official sample config for that printer?

#Below Macro with credit to Hywel Martin #https://github.com/KevinOConnor/klipper/issues/1354

[stepper_x] step_pin: P2.2 dir_pin: !P2.6 enable_pin: !P2.1 microsteps: 16 rotation_distance: 39.900 endstop_pin: P1.29 position_endstop: 210 position_max: 210 homing_speed: 50 [tmc2209 stepper_x] uart_pin: P1.10 run_current: 1.200 hold_current: 0.950 # https://github.com/KevinOConnor/klipper/issues/1363 stealthchop_threshold: 500 [stepper_y] step_pin: P0.19 dir_pin: !P0.20 enable_pin: !P2.8 microsteps: 16 rotation_distance: 39.800 endstop_pin: P1.28 position_endstop: 210 position_max: 210 homing_speed: 50 [tmc2209 stepper_y] uart_pin: P1.9 run_current: 1.200 hold_current: 0.950 # https://github.com/KevinOConnor/klipper/issues/1363 stealthchop_threshold: 500 [stepper_z] step_pin: P0.22 dir_pin: !P2.11 enable_pin: !P0.21 microsteps: 16 #rotation_distance: 4.036 rotation_distance: 4 endstop_pin: P1.27 #position_endstop: 0.0 position_max: 300 position_min: -2 endstop_pin: probe:z_virtual_endstop [tmc2209 stepper_z] uart_pin: P1.8 run_current: 0.650 hold_current: 0.450 # https://github.com/KevinOConnor/klipper/issues/1363 stealthchop_threshold: 500 [extruder] step_pin: P2.13 dir_pin: P0.11 enable_pin: !P2.12 microsteps: 16 rotation_distance: 8.159 nozzle_diameter: 0.400 filament_diameter: 1.750 heater_pin: P2.7 sensor_type: EPCOS 100K B57560G104F sensor_pin: P0.24 control: pid pid_Kp: 29.144 pid_Ki: 1.633 pid_Kd: 130.057 min_temp: 0 max_temp: 260 [tmc2209 extruder] uart_pin: P1.4 run_current: 0.800 hold_current: 0.500 # https://github.com/KevinOConnor/klipper/issues/1363 stealthchop_threshold: 5000 #[extruder1] #step_pin: P1.15 #dir_pin: P1.14 #enable_pin: !P1.16 #heater_pin: P2.4 #sensor_pin: P0.23 #... [heater_bed] heater_pin: P2.5 sensor_type: EPCOS 100K B57560G104F sensor_pin: P0.25 #control: pid #pid_kp: 66.429 #pid_ki: 1.197 #pid_kd: 921.707 min_temp: 0 max_temp: 130 [fan] pin: P2.3 [mcu] serial: /dev/serial/by-id/usb-Klipper_lpc1769_23B00015871C4AAFEB597C5DC62000F5-if00 [printer] kinematics: cartesian max_velocity: 400 max_accel: 500 max_z_velocity: 10 max_z_accel: 100 [bltouch] sensor_pin: ^P0.10 control_pin: P2.0 x_offset: -55 y_offset: -19 #z_offset: 1.26 [safe_z_home] home_xy_position: 110, 110 # Change coordinates to the center of your print bed speed: 50 z_hop: 10 # Move up 10mm z_hop_speed: 5 [bed_mesh] horizontal_move_z: 5 mesh_min: 20, 20 mesh_max: 149, 180 probe_count: 5, 5 algorithm: bicubic [screws_tilt_adjust] screw1: 69, 48 screw1_name: front left screw screw2: 210, 48 screw2_name: front right screw screw3: 210, 210 screw3_name: rear right screw screw4: 69, 210 screw4_name: rear left screw ######################################## # EXP1 / EXP2 (display) pins ######################################## [board_pins] aliases: # EXP1 header EXP1_1=P1.30, EXP1_3=P1.18, EXP1_5=P1.20, EXP1_7=P1.22, EXP1_9=, EXP1_2=P0.28, EXP1_4=P1.19, EXP1_6=P1.21, EXP1_8=P1.23, EXP1_10=<5V>, # EXP2 header EXP2_1=P0.17, EXP2_3=P3.26, EXP2_5=P3.25, EXP2_7=P1.31, EXP2_9=, EXP2_2=P0.15, EXP2_4=P0.16, EXP2_6=P0.18, EXP2_8=, EXP2_10= # Pins EXP2_1, EXP2_6, EXP2_2 are also MISO, MOSI, SCK of bus "ssp0" # See the sample-lcd.cfg file for definitions of common LCD displays. #*# <---------------------- SAVE_CONFIG ----------------------> #*# DO NOT EDIT THIS BLOCK OR BELOW. The contents are auto-generated. #*# #*# [extruder] #*# #*# [heater_bed] #*# control = pid #*# pid_kp = 71.053 #*# pid_ki = 1.538 #*# pid_kd = 820.659 #*# #*# [bltouch] #*# z_offset = 0.932 #*# #*# [bed_mesh ender5] #*# version = 1 #*# points = #*# 0.079459, 0.211890, 0.307745, 0.279998, 0.272430 #*# 0.010090, 0.029009, 0.097116, 0.051711, 0.153873 #*# -0.055495, 0.138738, 0.187926, 0.142521, 0.156395 #*# -0.049189, -0.021441, 0.013874, 0.003784, 0.089549 #*# 0.017658, 0.185404, 0.214413, 0.216935, 0.171530 #*# tension = 0.2 #*# min_x = 20.0 #*# algo = bicubic #*# y_count = 5 #*# mesh_y_pps = 2 #*# min_y = 19.99 #*# x_count = 5 #*# max_y = 180.0 #*# mesh_x_pps = 2 #*# max_x = 149.0 #*# #*# [bed_mesh default] #*# version = 1 #*# points = #*# 0.050450, 0.163963, 0.248466, 0.184143, 0.166485 #*# 0.031531, 0.007568, 0.078198, -0.034054, 0.094594 #*# 0.002523, 0.156395, 0.182881, 0.112251, 0.110990 #*# 0.007568, 0.003784, 0.035315, -0.025225, 0.076936 #*# 0.094594, 0.230809, 0.245944, 0.210629, 0.169008 #*# tension = 0.2 #*# min_x = 20.0 #*# algo = bicubic #*# y_count = 5 #*# mesh_y_pps = 2 #*# min_y = 19.99 #*# x_count = 5 #*# max_y = 180.0 #*# mesh_x_pps = 2 #*# max_x = 149.0

Here's what I'm using for config right now, but I'm still tuning it, so YMMV. I based this on a combination of the generic-bigtreetech-skr-2.cfg and printer-creality-ender5plus-2019.cfg configs from the Klipper config repo.