To date, I've been slicing in Cura and then exporting to SD card, then loading that into the printer, but today I started playing around with sending GCode directly to the printer. Eventually I want to update the version of Marlin it's running, but before I do that, I want to see what settings/version etc. the printer is running.
Cura can see the printer, and can send it basic requests - but it won't show me the printer's responses to particular GCodes, which I want to see. The inbuilt USB to serial adapter the printer uses is locked at 250,000 baud and this isn't supported by minicom.
I did some Googling, and in the end, I found out that I could instead use picocom. It's a very simple, cut down serial terminal package.
WARNING: Don't send commands to your printer if you don't know what they do. Read the instructions first. You change things at your own risk!
I found the command line:
$ picocom -b 250000 /dev/ttyUSB0 --echo --imap lfcrlf
... works well.
- -b 250000
Set the baudrate to required 250000 - /dev/ttyUSB0
The port which my printer appeared on when connected - --echo
Turn on local echo so you can see what you're typing - --imap lfcrlf
Convert the linefeeds sent by the printer in its responses into crlf sequences so it reads right on screen
I can then interrogate my printer:
$ picocom -b 250000 /dev/ttyUSB0 --echo --imap lfcrlf
picocom v3.1
port is : /dev/ttyUSB0
flowcontrol : none
baudrate is : 250000
parity is : none
databits are : 8
stopbits are : 1
escape is : C-a
local echo is : yes
noinit is : no
noreset is : no
hangup is : no
nolock is : no
send_cmd is : sz -vv
receive_cmd is : rz -vv -E
imap is : lfcrlf,
omap is :
emap is : crcrlf,delbs,
logfile is : none
initstring : none
exit_after is : not set
exit is : no
Type [C-a] [C-h] to see available commands
Terminal ready
echo:SD card ok
start
echo:Marlin 1.1.4
echo: Last Updated: 2017-07-04 12:00 | Author: (none, default config)
Compiled: Aug 25 2018
echo: Free Memory: 3263 PlannerBufferBytes: 1232
echo:V12 stored settings retrieved (445 bytes; crc -30710)
echo: G21 ; Units in mm
echo: M149 C ; Units in Celsius
echo:Filament settings: Disabled
echo: M200 D1.75
echo: M200 D0
echo:Steps per unit:
echo: M92 X80.00 Y80.00 Z400.00 E94.00
echo:Maximum feedrates (units/s):
echo: M203 X300.00 Y300.00 Z5.00 E25.00
echo:Maximum Acceleration (units/s2):
echo: M201 X3000 Y3000 Z100 E3000
echo:Acceleration (units/s2): P<print_accel> R<retract_accel> T<travel_accel>
echo: M204 P800.00 R800.00 T1000.00
echo:Advanced: S<min_feedrate> T<min_travel_feedrate> B<min_segment_time_ms> X<max_xy_jerk> Z<max_z_jerk> E<max_e_jerk>
echo: M205 S0.00 T0.00 B20000 X10.00 Y10.00 Z0.40 E1.00
echo:Home offset:
echo: M206 X0.00 Y0.00 Z0.00
echo:Mesh Bed Leveling:
echo: M420 S0 Z0.00
echo: G29 S3 X1 Y1 Z0.00000
echo: G29 S3 X2 Y1 Z0.00000
echo: G29 S3 X1 Y2 Z0.00000
echo: G29 S3 X2 Y2 Z0.00000
echo:Material heatup parameters:
echo: M145 S0 H210 B70 F0
M145 S1 H240 B110 F0
echo:PID settings:
echo: M301 P22.20 I1.08 D114.00
echo:LCD Contrast:
echo: M250 C200
echo:Z-Probe Offset (mm):
echo: M851 Z0.00
echo:SD card ok
M115
FIRMWARE_NAME:Marlin 1.1.4 (Github) SOURCE_CODE_URL:https://github.com/MarlinFirmware/Marlin PROTOCOL_VERSION:1.0 MACHINE_TYPE:3D Printer EXTRUDER_COUNT:1 UUID:cede2a2f-41a2-4748-9b12-c55c62f367ff
Cap:EEPROM:1
Cap:AUTOREPORT_TEMP:1
Cap:PROGRESS:0
Cap:PRINT_JOB:1
Cap:AUTOLEVEL:0
Cap:Z_PROBE:1
Cap:LEVELING_DATA:1
Cap:SOFTWARE_POWER:0
Cap:TOGGLE_LIGHTS:0
Cap:CASE_LIGHT_BRIGHTNESS:0
Cap:EMERGENCY_PARSER:0
ok
M501
echo:V12 stored settings retrieved (445 bytes; crc -30710)
echo: G21 ; Units in mm
echo: M149 C ; Units in Celsius
echo:Filament settings: Disabled
echo: M200 D1.75
echo: M200 D0
echo:Steps per unit:
echo: M92 X80.00 Y80.00 Z400.00 E94.00
echo:Maximum feedrates (units/s):
echo: M203 X300.00 Y300.00 Z5.00 E25.00
echo:Maximum Acceleration (units/s2):
echo: M201 X3000 Y3000 Z100 E3000
echo:Acceleration (units/s2): P<print_accel> R<retract_accel> T<travel_accel>
echo: M204 P800.00 R800.00 T1000.00
echo:Advanced: S<min_feedrate> T<min_travel_feedrate> B<min_segment_time_ms> X<max_xy_jerk> Z<max_z_jerk> E<max_e_jerk>
echo: M205 S0.00 T0.00 B20000 X10.00 Y10.00 Z0.40 E1.00
echo:Home offset:
echo: M206 X0.00 Y0.00 Z0.00
echo:Mesh Bed Leveling:
echo: M420 S0 Z0.00
echo: G29 S3 X1 Y1 Z0.00000
echo: G29 S3 X2 Y1 Z0.00000
echo: G29 S3 X1 Y2 Z0.00000
echo: G29 S3 X2 Y2 Z0.00000
echo:Material heatup parameters:
echo: M145 S0 H210 B70 F0
M145 S1 H240 B110 F0
echo:PID settings:
echo: M301 P22.20 I1.08 D114.00
echo:LCD Contrast:
echo: M250 C200
echo:Z-Probe Offset (mm):
echo: M851 Z0.00
ok
M503
echo: G21 ; Units in mm
echo: M149 C ; Units in Celsius
echo:Filament settings: Disabled
echo: M200 D1.75
echo: M200 D0
echo:Steps per unit:
echo: M92 X80.00 Y80.00 Z400.00 E94.00
echo:Maximum feedrates (units/s):
echo: M203 X300.00 Y300.00 Z5.00 E25.00
echo:Maximum Acceleration (units/s2):
echo: M201 X3000 Y3000 Z100 E3000
echo:Acceleration (units/s2): P<print_accel> R<retract_accel> T<travel_accel>
echo: M204 P800.00 R800.00 T1000.00
echo:Advanced: S<min_feedrate> T<min_travel_feedrate> B<min_segment_time_ms> X<max_xy_jerk> Z<max_z_jerk> E<max_e_jerk>
echo: M205 S0.00 T0.00 B20000 X10.00 Y10.00 Z0.40 E1.00
echo:Home offset:
echo: M206 X0.00 Y0.00 Z0.00
echo:Mesh Bed Leveling:
echo: M420 S0 Z0.00
echo: G29 S3 X1 Y1 Z0.00000
echo: G29 S3 X2 Y1 Z0.00000
echo: G29 S3 X1 Y2 Z0.00000
echo: G29 S3 X2 Y2 Z0.00000
echo:Material heatup parameters:
echo: M145 S0 H210 B70 F0
M145 S1 H240 B110 F0
echo:PID settings:
echo: M301 P22.20 I1.08 D114.00
echo:LCD Contrast:
echo: M250 C200
echo:Z-Probe Offset (mm):
echo: M851 Z0.00
ok
Terminating...
Thanks for using picocom
Use Ctrl+a Ctrl+x to quit picocom (cue vim jokes here).
References:
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