I cannot set tmc2208 properties in extruder section

General Discussion
1

Basic Information:

Printer Model: Ender 5 plus
MCU / Printerboard: Robin Nano 3.1
Host / SBC Raspberry pi 4
klippy.log

Fill out above information and in all cases attach your klippy.log file (use zip to compress it, if too big). Pasting your printer.cfg is not needed
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Hello all,
I have an issue where I cannot set the details for the tmc2208 driver in the extruder section.
All the stepper drivers are the same & all have all been soldered on the back to enable me to use the uart.

In the section [stepper_extruder] I get ar error for the step_pin, dir_pin, enable_pin & rotation distance.
However, if I comment out rotation_distance it tells me it is needed.

I can run the extruder in standalone mode.
klippy log.zip (952.4 KB)

I have attached the config file & the klippy log.

Many thanks in advance to anyone who can assist.

Tim
Printer config.txt (4.9 KB)

2

Hi @Gruntfuttock ,

[stepper_extruder] isn’t a valid configuration section. I think you’re looking for [extruder]. To set TMC parameters, you use [tmc2208 extruder]. Example with your config:

[tmc2208 extruder]
uart_pin = PD9
run_current = 0.8
stealthchop_threshold = 999999

[extruder]
microsteps = 16
rotation_distance = 40
nozzle_diameter = 0.400
filament_diameter = 1.750
heater_pin = PE5
sensor_type = ATC Semitec 104GT-2
sensor_pin = PC1
control = pid
pid_kp = 14.669
pid_ki = 0.572
pid_kd = 94.068
min_temp = 0
max_temp = 250

In your log, there’s also a connection error:

mcu 'mcu': Unable to open serial port: [Errno 2] could not open port /dev/serial/by-id/usb-Klipper_stm32f407xx_240039000551333438353530-if00: [Errno 2] No such file or directory: '/dev/serial/by-id/usb-Klipper_stm32f407xx_240039000551333438353530-if00'

What’s the output of the following in SSH?

ls /dev/serial/by-id/*
3

Thanks for looking at this.

I’ll amend the extruder config tomorrow. If it works I’ll take it on the chin as either muppetry or a senior moment.

No sure about the connection issue, it connects every time I switch it on. I will have a look just in case.

4

Yes that worked.

Thankyou.

I now have another issue, the oart cooling fan does not self start. I can start it manually from Mainsail.

I get unknown command M106.

Any ideas?

5

Please attach a recent klippy.log to your next post.

6

Thanks for the reply, I haven’t been back to the printer for a while.

The issue is the part cooling fan does not auto start. I can manually start it.

Many thanks

Tim

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(attachments)

klippy.txt (9.48 MB)

7

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