Voron help please

I have the voron 2.4 running the octopus 1.1 replaced today with a brand new one from BTT.

Installed exactly like the one I replaced. everything is fine connecting to klipper etc…

If I try to do home gantry moves opposite so z goes up z1 down z2 up z3 down. Extruder only retracts it will not extract only moves is one direction. X,y throw some uart error. Config has not changed it is the exact config I used on the old octopus that just stopped powering up out of the blue. I’m at my end help much appreciated.

Just a side note I checked all the stepper wiring no loose pins or shorts.

Two questions:

  1. Why did you replace the original Octopus?
  2. If you have UART errors then I’m guessing you’re running with TMC2208/TMC2209? How did you replace the jumpers on the board?

You might want to join and put this question at the Klipper Discourse group at:

Hey Tom. Reason for replacing was because the other one just didn’t want to boot anymore, no power. After a few hours of diag. I deemed it doa. Yes I’m using tmc2209. All jumper were set exactly like my old board that was working fine for a long time.

What was the process you followed for installing the firmware on the new Octopus along with the process you used to connect to your host?

Based on what you’re describing, you might have miswired your stepper motors (ie wired them to different stepper motors than you had originally). How did you record how things were wired before and how are you verifying it?

The same question with regards to the stepper motor jumpers - how are you verifying that they are correct? The Octopus has an unreasonable number of jumpers and having them underneath the driver modules doesn’t make things easier.

Basically both boards side by side. Copy and paste lol
Remove 1 wire place it in the exact position on the new board. Rinse and repeat

The most likely explanation is that you made a mistake in your wiring/placement of jumpers.

I would recommend first checking over the jumpers - your UART errors are most likely due to misplaced jumpers. Run again and see if you get the errors.

Did you move the TMC2209 modules from the old board to the new one? If so, maybe one or more are burned out and that’s why you’re getting the UART errors. If you’re still getting them trying moving them to different positions on the Octopus and see if the errors move with them.

Finally, go over your motor wiring noting that Motor 3 has two stepper wire sockets and at least one of them cannot be populated on the Octopus for the Voron 2.4.

Sorry, but the most likely explanation is that there are differences in wiring and jumpers.

Hey there,

Would you mind taking a picture of the board itself that way we can have a peak at how you have it set up?

Something may jump out at us once we can see how you have it.

Matt

Hey Mat. 3bad tmc2209 drivers. Replaced and it’s working (had a few spares kicking around). Now z2 is not working lol at all. If I switch z1 with Z2 problem moves to Z1

1 Like

Ah man, way she goes I guess!

Glad you figured out the issue though.

[include mainsail.cfg]

This file contains common pin mappings for the BigTreeTech Octopus V1.

To use this config, the firmware should be compiled for the STM32F446 with a “32KiB bootloader”

Enable “extra low-level configuration options” and select the “12MHz crystal” as clock reference

after running “make”, copy the generated “klipper/out/klipper.bin” file to a

file named “firmware.bin” on an SD card and then restart the OctoPus with that SD card.

See docs/Config_Reference.md for a description of parameters.

Voron Design VORON2 250/300/350mm BigTreeTech OctoPus V1 TMC2209 UART config

*** THINGS TO CHANGE/CHECK: ***

MCU paths [mcu] section

Thermistor types [extruder] and [heater_bed] sections - See Configuration reference - Klipper documentation for common thermistor types

Z Endstop Switch location [safe_z_home] section

Homing end position [gcode_macro G32] section

Z Endstop Switch offset for Z0 [stepper_z] section

Probe points [quad_gantry_level] section

Min & Max gantry corner postions [quad_gantry_level] section

PID tune [extruder] and [heater_bed] sections

Probe pin [probe] section

Fine tune E steps [extruder] section

[mcu]

Obtain definition by “ls -l /dev/serial/by-id/” then unplug to verify

##--------------------------------------------------------------------
serial: /dev/serial/by-id/usb-Klipper_stm32f446xx_270005001150535556323420-if00
restart_method: command
##--------------------------------------------------------------------
#[include autoz.cfg]
[include macros.cfg]
#[include sensorless.cfg]
[include nozzle_scrub.cfg]
[include print_start.cfg]
[include print_end.cfg]
#[include set_pa.cfg]
[include stealthburner_leds.cfg]
#[include KAMP_Settings.cfg]
[include mainsail.cfg]
[virtual_sdcard]
path: /home/biqu/printer_data/gcodes
on_error_gcode: CANCEL_PRINT

#[include Nozzle_ADXL.cfg]
#[include PIS.cfg]
[respond]

#[include adxl.cfg]

[exclude_object]

[temperature_sensor Board_MCU]
sensor_type: temperature_mcu
min_temp: 0
max_temp: 100

[temperature_sensor Raspberry_Pi]
sensor_type: temperature_host
min_temp: 0
max_temp: 100

[input_shaper]
shaper_freq_x: 59.4
shaper_type_x: mzv
shaper_freq_y: 43.2
shaper_type_y: mzv

[printer]
kinematics: corexy
max_velocity: 400
max_accel: 6000 #Max 4000
max_accel_to_decel: 3000
max_z_velocity: 40 #Max 15 for 12V TMC Drivers, can increase for 24V
max_z_accel: 1000
square_corner_velocity: 5.0

#####################################################################

X/Y Stepper Settings

#####################################################################

B Stepper - Left

Connected to MOTOR_0

Endstop connected to DIAG_0

[stepper_x]
step_pin: PF13
dir_pin: PF12
enable_pin: !PF14
rotation_distance: 40
microsteps: 32
full_steps_per_rotation:400 #set to 200 for 1.8 degree stepper
endstop_pin: PG6
position_min: 0
##--------------------------------------------------------------------

Uncomment below for 250mm build

#position_endstop: 250
#position_max: 250

Uncomment for 300mm build

position_endstop: 300
position_max: 300

Uncomment for 350mm build

#position_endstop: 350
#position_max: 350

##--------------------------------------------------------------------
homing_speed: 25 #Max 100
homing_retract_dist: 5
homing_positive_dir: true

Make sure to update below for your relevant driver (2208 or 2209)

[tmc2209 stepper_x]
uart_pin: PC4
interpolate: false
run_current: 0.8
sense_resistor: 0.110
stealthchop_threshold: 0

A Stepper - Right

Connected to MOTOR_1

Endstop connected to DIAG_1

[stepper_y]
step_pin: PG0
dir_pin: PG1
enable_pin: !PF15
rotation_distance: 40
microsteps: 32
full_steps_per_rotation:400 #set to 200 for 1.8 degree stepper
endstop_pin: PG9
position_min: 0
##--------------------------------------------------------------------

Uncomment for 250mm build

#position_endstop: 250
#position_max: 250

Uncomment for 300mm build

position_endstop: 300
position_max: 300

Uncomment for 350mm build

#position_endstop: 350
#position_max: 350

##--------------------------------------------------------------------
homing_speed: 25 #Max 100
homing_retract_dist: 5
homing_positive_dir: true

Make sure to update below for your relevant driver (2208 or 2209)

[tmc2209 stepper_y]
uart_pin: PD11
interpolate: false
run_current: 0.8
sense_resistor: 0.110
stealthchop_threshold: 0

#####################################################################

Z Stepper Settings

#####################################################################

Z0 Stepper - Front Left

Connected to MOTOR_2

Endstop connected to DIAG_2

[stepper_z]
step_pin: PF11
dir_pin: PG3
enable_pin: !PG5
rotation_distance: 40
gear_ratio: 80:16
microsteps: 32
endstop_pin: PG10

Z-position of nozzle (in mm) to z-endstop trigger point relative to print surface (Z0)

(+) value = endstop above Z0, (-) value = endstop below

Increasing position_endstop brings nozzle closer to the bed

After you run Z_ENDSTOP_CALIBRATE, position_endstop will be stored at the very end of your config

position_endstop: -0.5
##--------------------------------------------------------------------

Uncomment below for 250mm build

#position_max: 210

Uncomment below for 300mm build

position_max: 260

Uncomment below for 350mm build

#position_max: 310

##--------------------------------------------------------------------
position_min: -5
homing_speed: 8
second_homing_speed: 3
homing_retract_dist: 3

Make sure to update below for your relevant driver (2208 or 2209)

[tmc2209 stepper_z]
uart_pin: PC6
interpolate: false
run_current: 0.8
sense_resistor: 0.110
stealthchop_threshold: 0

Z1 Stepper - Rear Left

Connected to MOTOR_3

[stepper_z1]
step_pin: PG4
dir_pin: !PC1
enable_pin: !PA0
rotation_distance: 40
gear_ratio: 80:16
microsteps: 32

Make sure to update below for your relevant driver (2208 or 2209)

[tmc2209 stepper_z1]
uart_pin: PC7
interpolate: false
run_current: 0.8
sense_resistor: 0.110
stealthchop_threshold: 0

Z2 Stepper - Rear Right

Connected to MOTOR_4

[stepper_z2]
step_pin: PF9
dir_pin: PF10
enable_pin: PG2
rotation_distance: 40
gear_ratio: 80:16
microsteps: 32

Make sure to update below for your relevant driver (2208 or 2209)

[tmc2209 stepper_z2]
uart_pin: PF2
interpolate: false
run_current: 0.8
sense_resistor: 0.110
stealthchop_threshold: 0

Z3 Stepper - Front Right

Connected to MOTOR_5

[stepper_z3]
step_pin: PC13
dir_pin: !PF0
enable_pin: !PF1
rotation_distance: 40
gear_ratio: 80:16
microsteps: 32

Make sure to update below for your relevant driver (2208 or 2209)

[tmc2209 stepper_z3]
uart_pin: PE4
interpolate: false
run_current: 0.8
sense_resistor: 0.110
stealthchop_threshold: 0

#####################################################################

Extruder

#####################################################################

Connected to MOTOR_6

Heater - HE0

Thermistor - T0

[extruder]
step_pin: PE2
dir_pin: !PE3
enable_pin: !PD4

Update value below when you perform extruder calibration

If you ask for 100mm of filament, but in reality it is 98mm:

rotation_distance = <previous_rotation_distance> * <actual_extrude_distance> / 100

22.6789511 is a good starting point

rotation_distance: 22.6789511 #Bondtech 5mm Drive Gears

Update Gear Ratio depending on your Extruder Type

Use 50:10 for Stealthburner/Clockwork 2

Use 50:17 for Afterburner/Clockwork (BMG Gear Ratio)

Use 80:20 for M4, M3.1

gear_ratio: 50:17 #BMG Gear Ratio
microsteps: 32
full_steps_per_rotation: 200 #200 for 1.8 degree, 400 for 0.9 degree
nozzle_diameter: 0.400
filament_diameter: 1.75
heater_pin: PA2

Check what thermistor type you have. See Configuration reference - Klipper documentation for common thermistor types.

Use “Generic 3950” for NTC 100k 3950 thermistors

sensor_type: ATC Semitec 104NT-4-R025H42G
sensor_pin: PF4
min_temp: 10
max_temp: 270
max_power: 1.0
min_extrude_temp: 170
control = pid
pid_kp = 26.213
pid_ki = 1.304
pid_kd = 131.721

Try to keep pressure_advance below 1.0

#pressure_advance: 0.05

Default is 0.040, leave stock

#pressure_advance_smooth_time: 0.040

E0 on MOTOR6

Make sure to update below for your relevant driver (2208 or 2209)

[tmc2209 extruder]
uart_pin: PE1
interpolate: false
run_current: 0.5
sense_resistor: 0.110
stealthchop_threshold: 0

#####################################################################

Bed Heater

#####################################################################

SSR Pin - HE1

Thermistor - TB

[heater_bed]

Uncomment the following line if using the default SSR wiring from the docs site

heater_pin: PA3

Other wiring guides may use BED_OUT to control the SSR. Uncomment the following line for those cases

#heater_pin: PA1

Check what thermistor type you have. See Configuration reference - Klipper documentation for common thermistor types.

Use “Generic 3950” for Keenovo heaters

sensor_type:Generic 3950
sensor_pin: PF3

Adjust Max Power so your heater doesn’t warp your bed. Rule of thumb is 0.4 watts / cm^2 .

max_power: 0.6
min_temp: 0
max_temp: 120
#control: pid
#pid_kp: 58.437
#pid_ki: 2.347
#pid_kd: 363.769

#####################################################################

Probe

#####################################################################

Inductive Probe

This probe is not used for Z height, only Quad Gantry Leveling

[probe]

#--------------------------------------------------------------------

Select the probe port by type:

For the PROBE port. Will not work with Diode. May need pull-up resistor from signal to 24V.

#pin: ~!PB7

For the DIAG_7 port. NEEDS BAT85 DIODE! Change to !PG15 if probe is NO.

pin: !PG15

For Octopus Pro PROBE port; NPN and PNP proximity switch types can be set by jumper

#pin: ~!PC5

#--------------------------------------------------------------------

x_offset: 0
y_offset: 0
#z_offset: 0
speed: 10
lift_speed: 75.0
samples: 3
samples_result: median
sample_retract_dist: 5.0
samples_tolerance: 0.010
samples_tolerance_retries: 5

activate_gcode:
{% set PROBE_TEMP = 150 %}
{% set MAX_TEMP = PROBE_TEMP + 5 %}
{% set ACTUAL_TEMP = printer.extruder.temperature %}
{% set TARGET_TEMP = printer.extruder.target %}

{% if TARGET_TEMP > PROBE_TEMP %}
    { action_respond_info('Extruder temperature target of %.1fC is too high, lowering to %.1fC' % (TARGET_TEMP, PROBE_TEMP)) }
    M109 S{ PROBE_TEMP }
{% else %}
    # Temperature target is already low enough, but nozzle may still be too hot.
    {% if ACTUAL_TEMP > MAX_TEMP %}
        { action_respond_info('Extruder temperature %.1fC is still too high, waiting until below %.1fC' % (ACTUAL_TEMP, MAX_TEMP)) }
        TEMPERATURE_WAIT SENSOR=extruder MAXIMUM={ MAX_TEMP }
    {% endif %}
{% endif %}

#####################################################################

Fan Control

#####################################################################

Print Cooling Fan - FAN0

[fan]
pin: PA8
kick_start_time: 0.5

Depending on your fan, you may need to increase this value

if your fan will not start. Can change cycle_time (increase)

if your fan is not able to slow down effectively

off_below: 0.10

Hotend Fan - FAN1

[heater_fan hotend_fan]
pin: PE5
max_power: 1.0
kick_start_time: 0.5
heater: extruder
heater_temp: 50.0

If you are experiencing back flow, you can reduce fan_speed

#fan_speed: 1.0

Controller fan - FAN2

[controller_fan controller_fan]
pin: PD12
kick_start_time: 0.5
heater: heater_bed

Exhaust fan - FAN3

#[heater_fan exhaust_fan]
#pin: PD13
#max_power: 1.0
#shutdown_speed: 0.0
#kick_start_time: 5.0
#heater: heater_bed
#heater_temp: 60
#fan_speed: 1.0

#####################################################################

LED Control

#####################################################################

Chamber Lighting - HE2 Connector (Optional)

[output_pin caselight]
pin: PB10
pwm:true
hardware_pwm: true
shutdown_value: 0
value:0
cycle_time: 0.0001

#####################################################################

Homing and Gantry Adjustment Routines

#####################################################################

[idle_timeout]
timeout: 1800

[safe_z_home]

XY Location of the Z Endstop Switch

Update -10,-10 to the XY coordinates of your endstop pin

(such as 157,305) after going through Z Endstop Pin

Location Definition step.

home_xy_position:150,150
speed:100
z_hop:13

Use QUAD_GANTRY_LEVEL to level a gantry.

Min & Max gantry corners - measure from nozzle at MIN (0,0) and

MAX (250, 250), (300,300), or (350,350) depending on your printer size

to respective belt positions

[quad_gantry_level]

#--------------------------------------------------------------------

Gantry Corners for 250mm Build

Uncomment for 250mm build

#gantry_corners:

-60,-10

310, 320

Probe points

#points:

50,25

50,175

200,175

200,25

Gantry Corners for 300mm Build

Uncomment for 300mm build

gantry_corners:
-60,-10
360,370

Probe points

points:
50,50
50,250
250,250
250,50

Gantry Corners for 350mm Build

Uncomment for 350mm build

#gantry_corners:

-60,-10

410,420

Probe points

#points:

50,25

50,275

300,275

300,25

#--------------------------------------------------------------------
speed: 100
horizontal_move_z: 10
retries: 7
retry_tolerance: 0.0075
max_adjust: 10

########################################

EXP1 / EXP2 (display) pins

########################################

[board_pins]
aliases:
# EXP1 header
EXP1_1=PE8, EXP1_2=PE7,
EXP1_3=PE9, EXP1_4=PE10,
EXP1_5=PE12, EXP1_6=PE13, # Slot in the socket on this side
EXP1_7=PE14, EXP1_8=PE15,
EXP1_9=, EXP1_10=<5V>,

# EXP2 header
EXP2_1=PA6, EXP2_2=PA5,
EXP2_3=PB1, EXP2_4=PA4,
EXP2_5=PB2, EXP2_6=PA7,      # Slot in the socket on this side
EXP2_7=PC15, EXP2_8=<RST>,
EXP2_9=<GND>, EXP2_10=<5V>

#####################################################################

Displays

#####################################################################

Uncomment the display that you have

#--------------------------------------------------------------------

RepRapDiscount 128x64 Full Graphic Smart Controller

#[display]
#lcd_type: st7920
#cs_pin: EXP1_4
#sclk_pin: EXP1_5
#sid_pin: EXP1_3
#menu_timeout: 40
#encoder_pins: ^EXP2_5, ^EXP2_3
#click_pin: ^!EXP1_2

#[output_pin beeper]
#pin: EXP1_1

#--------------------------------------------------------------------

[bed_mesh]
speed: 250
horizontal_move_z: 10
mesh_min: 30, 30
mesh_max: 290, 290
probe_count: 5, 5

mini12864 LCD Display

[display]
lcd_type: uc1701
cs_pin: EXP1_3
a0_pin: EXP1_4
rst_pin: EXP1_5
encoder_pins: ^EXP2_5, ^EXP2_3
click_pin: ^!EXP1_2
contrast: 63
spi_software_miso_pin: EXP2_1
spi_software_mosi_pin: EXP2_6
spi_software_sclk_pin: EXP2_2

To control Neopixel RGB in mini12864 display

[neopixel btt_mini12864]
pin: EXP1_6
chain_count: 3
initial_RED: 0.1
initial_GREEN: 0.5
initial_BLUE: 0.0
color_order: RGB

Set RGB values on boot up for each Neopixel.

Index 1 = display, Index 2 and 3 = Knob

[delayed_gcode setdisplayneopixel]
initial_duration: 1
gcode:
SET_LED LED=btt_mini12864 RED=1 GREEN=1 BLUE=1 INDEX=1 TRANSMIT=0
SET_LED LED=btt_mini12864 RED=1 GREEN=0 BLUE=0 INDEX=2 TRANSMIT=0
SET_LED LED=btt_mini12864 RED=1 GREEN=0 BLUE=0 INDEX=3

#--------------------------------------------------------------------

[gcode_macro M401]
gcode:
G90
{action_respond_info(“Entering M401”)}
error_if_probe_deployed ; check to make sure that the probe is not already attached
_M401

[gcode_macro error_if_probe_deployed]
gcode:
QUERY_PROBE ; check probe status
do_error_if_probe_deployed ; logic check to verify probe is not already deployed

[gcode_macro do_error_if_probe_deployed]
gcode:
{% if not printer.probe.last_query %}
{action_raise_error(“Euclid Probe is already deployed - Remove and Return it to the dock”)}
{% endif %}

Macro to Deploy Bed Probe

[gcode_macro _M401]
gcode:
G90
{% if printer.probe.last_query %}
G0 Z50 F3000 ; set approach elevation of Z15 to clear probe over bed on fixed gantry machine
# for moving gantry machine this may need to be adjusted
#G0 X100 Y350 ; (0) move the carraige to safe position to move from. this is the pre-flight position
G0 X72 Y300 F3000 ; move to the side of the dock. this is the dock side position
#G4 P250 ; wait 1/4 second
G0 X72 Y150 ; move sideways over the dock to pick up probe. this is the dock position
M400 ; wait for moves to finish
G0 X150 Y150 F3000 ; move out of the dock in a straight line to the dock exit poistion
G0 Z15 F3000 ; move up to clear the probe over the bed of moving gantry or provide clearance for fixed gantry
#G0 X175 Y175 ; move probe to center of bed in ready position
{% endif %}
error_if_probe_not_deployed
{action_respond_info(“Exiting M401”)}

[gcode_macro error_if_probe_not_deployed]
gcode:
QUERY_PROBE
do_error_if_probe_not_deployed

[gcode_macro do_error_if_probe_not_deployed]
gcode:
{% if printer.probe.last_query %}
{action_raise_error(“Euclid Probe failed to deploy!”)}
{% endif %}

Macro to retract Bed Probe

[gcode_macro M402]
gcode:
G90
{action_respond_info(“Entering M402”)}
error_if_probe_not_deployed
_M402

Macro to Stow Bed Leveling Probe

[gcode_macro _M402]
gcode:
G90
{% if not printer.probe.last_query %} ; the logic on this needs function check
#G0 Z15 F2400 ; set approach elevation of Z15 for fixed gantry system to clear probe over bed
# ; for moving gantry system this may have to be altered to match your dock elevation
#G0 X150 Y150 F3000 ; start movements at center of the bed
G0 X72 Y200 F6000 ; move to the re-entry staging position
G0 X72 Y275 F3000 ; move to a position in front of the dock so a simple linear movement into dock
G0 X72 Y300 F500 ; slowly move into dock
M400 ; wait for moves to finish
#G4 P250 ; forced pause here so motion is definite 90 tavel to swipe
G0 X150 Y300 Z25 F1000 ; quick swipe off

#  G0 Z20 F500                   ;  move up to elevation of Z20
{% endif %}                     ;  exit the if-then loop. was missing in previous versions
error_if_probe_deployed         ;  verify that the probe is detached. is corrected error  
{action_respond_info("Exiting M402")}

[gcode_macro QUAD_GANTRY_LEVEL]
rename_existing: _QUAD_GANTRY_LEVEL_ORIGINAL
gcode:
M401 ; deploy Euclid Probe if needed
_QUAD_GANTRY_LEVEL_ORIGINAL ; check bed level
M402 ; dock Euclid Probe

[gcode_macro LOAD_FILAMENT]
gcode:
M83 # Put the extruder into relative mode
G92 E0.0 # Reset the extruder so that it thinks it is at position zero
G1 E120 F350 # Move the extruder forward 120mm at a speed of 350mm/minute
G92 E0.0 # Reset the extruder again
M82 # Put the extruder back into absolute mode.

[gcode_macro UNLOAD_FILAMENT]
gcode:
M83 # Put the extruder into relative mode
G92 E0.0 # Reset the extruder so that it thinks it is at position zero
G1 E-120 F350 # Move the extruder forward 120mm at a speed of 350mm/minute
G92 E0.0 # Reset the extruder again
M82 # Put the extruder back into absolute mode.
[force_move]

enable_force_move: True
[gcode_macro FAKE_POSITION]
gcode:
SET_KINEMATIC_POSITION X=10 Y=10 Z=10

## <---------------------- SAVE_CONFIG ---------------------->
#
# DO NOT EDIT THIS BLOCK OR BELOW. The contents are auto-generated.
##
#
# [heater_bed]
## control = pid
#
# pid_kp = 37.983
## pid_ki = 1.415
#
# pid_kd = 254.961
##
#
# [extruder]
## control = pid
#
# pid_kp = 20.670
## pid_ki = 0.907
#
# pid_kd = 117.819
##
#
# [stepper_z]
##
#
#
## [probe]
#
# z_offset = 6.437
##
#
# [bed_mesh default]
## version = 1
#
# points =
## -3.464570, -3.417695, -3.416445, -3.440195, -3.481445
#
# -3.468320, -3.474570, -3.462070, -3.467070, -3.493945
## -3.473320, -3.452695, -3.466445, -3.467070, -3.482695
#
# -3.469570, -3.467695, -3.452695, -3.461445, -3.478945
## -3.482070, -3.448320, -3.437070, -3.430820, -3.455195
#
# x_count = 5
## y_count = 5
#
# mesh_x_pps = 2
## mesh_y_pps = 2
#
# algo = lagrange
## tension = 0.2
#
# min_x = 42.87
## max_x = 257.39
#
# min_y = 45.230000000000004
#*# max_y = 253.51

Ended up being defective tmc2209’s replaced and everything works

I’m just curious as to what happened here.

You had your BTT Octopus main controller board fail and you have a bunch of defective TMC2209s (which I’m guessing you took off the original Octopus). Do you understand why this happened?

Modern electronics is quite robust and Trinamic stepper drivers at least doubly so (they have to be because they’re motor drivers and regularly experience transients that would knock our regular chips). On my Zortrax, I’ve had the electronics run for 12 years now without issue and the Octopus (with TMC2209s on it) on my Voron are more than two years old.

So what do you think happened here?

We ended up giving it a shot in the storefront, and yes as soon as we swapped over the drivers everything worked flawlessly. I have seen a lot of different problems with printers, and this is certainly a new one for me.

I would say that I would like to try and see if I can recreate this issue, but unfortunately I don’t have the budget for that!

I’ve never seen an event like this in a (properly wired) 3D printer and I’m curious as to what were the circumstances that lead up to this failure.

Well, a series of unfortunate events lmao.
I bought the chaoticlab tap and couldn’t get it to work for the life of me. End result was one of the ports in the octopus was defective and when I was testing/tinkering I must of shorted something out taking out the board and a few tmc drivers. All works now so I’m happy :slight_smile:

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