mk3-32u2-firmware VS klipper

If anyone is having issues it such a simple fix with a Arduino Uno and these instructions: https://github.com/PrusaOwners/mk3-32u2-firmware

Note: The Einsy boards sold by Prusa have defective firmware on the usb-to-serial chip that make the boards unusable with Klipper (boards sold by Ultimaker do not have this issue). See https://github.com/PrusaOwners/mk3-32u2-firmware for a fixed usb-to-serial firmware.

Yes and no. It was worth it for tinkering and learning. My Prusa is now barely recognizable as one because i went on a quest for speed after getting into klipper and input shaper. I have retained almost all of the Prusa features through some nice configs. But the machine is way less reliable. A word of warning would be that you have to flash a new firmware to the usb-to-serial chip of the Einsy Rambo of the mk3 to reliably use Klipper, which needs additional hardware.

You can totally run klipper with an ATMega board but it's a bit involved getting to work on the prusa enisy rambo board as you have to change the usb <-> serial controller firmware as described here https://github.com/PrusaOwners/mk3-32u2-firmware

According to this the pins on the right from top to bottom are VCC MOSI GND

I've had my Ender 3 V2 for a while now and want to upgrade to something nicer. I have my eye on the Prusa MK3S+, but I've seen something about the USB to serial firmware shipped on the board being either slow or defective. I've also seen a (single) more recent comment about how newer boards don't have this issue. Does anyone have insight on this? I know there is a fix, but I'm not sure it's necessary any longer.

But it seems it work if you flash your own firmware. Bit of effort though. https://github.com/PrusaOwners/mk3-32u2-firmware

Add to that, connecting the Pi GPIO to the Einsy headers (like with a Zero) works, it's less reliable than over USB. USB isn't without issue, although there is a fix available.

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.