DuetLapse available for Alpha testing

Phaedrux

That's great. Can't wait to start using it.

Adrian52

Great program, but I still have not got it quite right. I am currently using. /DuetLapse - duet 192.168.1.16 -camera pi -detect pause, with M25 and M400 added to each layer in gcode (easy to do in kisslicer). The problem is that two frames are taken, one when the head is moved away by pause.g, the second a bit later, when the print has resumed. I also get an error message on the console 'm24: cannot print because no file is selected'. It looks as though the m24 is being sent twice.
I have edited my pause.g so that there is no z shift.

Danal

I will take a look. Could you post a section of gcode that includes a pause, and the content of your pause.g and resume.g files, please?

Adrian52

@Danal Thanks. This is the gcode transition from layer 1 to 2:

 G1 X7.344 Y7.508 E0.06547
G1 X6.523 Y8.329 E0.05469
G1 X6.526 Y8.329 E0.00013
G1 X7.303 Y8.327 E0.0366
G1 X7.938 Y7.692 E0.04229
G1 X8.319 Y7.312 E0.02538
G1 X8.446 Y7.185 E0.00845
; trigger retract
G10
; Blending Fan to Cool (21.9% blend)
; Blended Fan at 11%
;
; 'Destring/Wipe/Jump Path', 0.0 [feed mm/s], 20.0 [head mm/s]
; head speed 20.000000, filament speed 0.000000, preload 0.000000
; Prepare for End-Of-Layer
; time estimate: pre = 66.853355, post = 66.451721
; Dwell time remaining = -46.451717
;
; Post-layer lift
G1 X8.446 Y7.185 Z0.4 E0 F3000
; END_LAYER_OBJECT z=0.200
;
; *** Every 1 Layers ***
M25
M400
;
; *** Estimate all extruders at 15.9 [s], Slowing 0.776x to 20.0 [s] ***
; BEGIN_LAYER_OBJECT z=0.400 z_thickness=0.200
; Fan set to Cool value 50%
;
; 'Loop Path', 1.8 [feed mm/s], 38.8 [head mm/s]
G1 X9.155 Y-7.346 Z0.4 E0 F7800
; trigger prime
G11
; head speed 38.793945, filament speed 1.827376, preload 0.000000
G1 X9.155 Y-7.153 E0.00908 F2327.6
G1 X9.155 Y-6.575 E0.02723
G1 X9.155 Y-5.612 E0.04538
G1 X9.155 Y-4.263 E0.06354
G1 X9.155 Y-2.529 E0.08169
G1 X9.155 Y-0.409 E0.09985
G1 X9.155 Y4.986 E0.25415
G1 X9.155 Y9.155 E0.19635
G1 X-4.417 Y9.155 E0.63929
G1 X-9.155 Y9.155 E0.22317
; Prepare for Perimeter
G1 X-9.155 Y-9.155 E0.86246

Pause.g

M83					; relative extruder moves
G1 E-3 F2000		; retract 3mm
;G91					; relative moves
;G1 Z20 F5000			; raise nozzle 20mm
G90					; absolute moves
G1 X-100 Y20 F10000		; move head out of the way of the print

Resume.g

;G1 R1 Z2 F5000     ; move to 2mm above resume point
G1 R1 F10000	; lower nozzle to resume point
M83         ; relative extruder moves
G1 E3 F1500     ; undo the retraction

As you see I have commented out my z moves

Danal

Thanks!

Also.. If you pulled the script from github after Sat Apr 25 21:27:50 CDT, it no longer looks at Z. It looks at layers. Which works MUCH better.

Danal

Aha!

M25 is not for pausing from within a file being printed. Please change these to M226.

Adrian52

@Danal thanks very much - will give it a go.

Adrian52

Still getting the same behaviour with M226 in the gcode, with or without z move, using freshly pulled scripts.

Danal

Thanks for checking that, I will give this a look.

Adrian52

If you are using the raspberry pi camera, note that it has a default 5 second timeout. If you include -t 1 in the camera parameters, it works much more quickly. I have also started including -ex sports, which uses a fast shutter speed, and -mm matrix, which seems to give a better exposure; -n gives nopreview.
With the faster response, I now sometimes get more than one extra picture per layer - I got 547 for a 0.2 layer benchy, instead of 240.

Danal

@Adrian52 said in DuetLapse available for Alpha testing:

If you are using the raspberry pi camera, note that it has a default 5 second timeout. If you include -t 1 in the camera parameters, it works much more quickly. I have also started including -ex sports, which uses a fast shutter speed, and -mm matrix, which seems to give a better exposure; -n gives nopreview.
With the faster response, I now sometimes get more than one extra picture per layer - I got 547 for a 0.2 layer benchy, instead of 240.

@Adrian52 said in DuetLapse available for Alpha testing:

If you are using the raspberry pi camera, note that it has a default 5 second timeout. If you include -t 1 in the camera parameters, it works much more quickly. I have also started including -ex sports, which uses a fast shutter speed, and -mm matrix, which seems to give a better exposure; -n gives nopreview.
With the faster response, I now sometimes get more than one extra picture per layer - I got 547 for a 0.2 layer benchy, instead of 240.

I will add those to the defaults

Adrian52

https://vimeo.com/415279225
Is an effort with pla. Used detect - pause, with M226 in the gcode at each layer change. The extra frames have to be deleted before running ffmpeg again

arhi

some, not so recent, rpi installation ...

root@octopi:~/DuetLapse# ./DuetLapse.py -h
Traceback (most recent call last):
  File "./DuetLapse.py", line 21, in <module>
    import DuetWebAPI as DWA
  File "/root/DuetLapse/DuetWebAPI.py", line 27
    URL=(f'{self._base_url}'+'/rr_status?type=1')
                           ^
SyntaxError: invalid syntax
root@octopi:~/DuetLapse# python3
python3     python3.5   python3.5m  python3m
root@octopi:~/DuetLapse# python3 DuetLapse.py -h
Traceback (most recent call last):
  File "DuetLapse.py", line 21, in <module>
    import DuetWebAPI as DWA
  File "/root/DuetLapse/DuetWebAPI.py", line 27
    URL=(f'{self._base_url}'+'/rr_status?type=1')
                           ^
SyntaxError: invalid syntax
root@octopi:~/DuetLapse#

after rpi-update

root@octopi:~/DuetLapse# python3 --version
Python 3.5.3
root@octopi:~/DuetLapse# python3 ./DuetLapse.py -h
Traceback (most recent call last):
  File "./DuetLapse.py", line 21, in <module>
    import DuetWebAPI as DWA
  File "/root/DuetLapse/DuetWebAPI.py", line 27
    URL=(f'{self._base_url}'+'/rr_status?type=1')
                           ^
SyntaxError: invalid syntax
root@octopi:~/DuetLapse# python3 ./DuetLapse.py
Traceback (most recent call last):
  File "./DuetLapse.py", line 21, in <module>
    import DuetWebAPI as DWA
  File "/root/DuetLapse/DuetWebAPI.py", line 27
    URL=(f'{self._base_url}'+'/rr_status?type=1')
                           ^
SyntaxError: invalid syntax
root@octopi:~/DuetLapse#

arhi

hm and just in case wget messed something up .. git clone of both repos

root@octopi:~/DuetLapse/DuetLapse# PYTHONPATH=/root/DuetLapse/DuetWebAPI python3 DuetLapse.py  -h
Traceback (most recent call last):
  File "DuetLapse.py", line 21, in <module>
    import DuetWebAPI as DWA
  File "/root/DuetLapse/DuetWebAPI/DuetWebAPI.py", line 27
    URL=(f'{self._base_url}'+'/rr_status?type=1')
                           ^
SyntaxError: invalid syntax
root@octopi:~/DuetLapse/DuetLapse#

I don't get it, I don't see that this line changed since forever?!

looks like F-Strings are in from 3.6 only raspbian on pi3b+ latest comes with 3.5.3

Danal

@arhi said in DuetLapse available for Alpha testing:

URL=(f'{self._base_url}'+'/rr_status?type=1')

@arhi Very interesting, I don't get that, and that line is not a syntax error. Hmmm... Let me think of a way to pin this down.

arhi

@Danal said in DuetLapse available for Alpha testing:

@arhi said in DuetLapse available for Alpha testing:

URL=(f'{self._base_url}'+'/rr_status?type=1')

@arhi Very interesting, I don't get that, and that line is not a syntax error. Hmmm... Let me think of a way to pin this down.

F-strings are 3.6 python from what I read online, and stretch has max python 3.5.3 ... I'm now going to move to buster and see if it uses newer python

Danal

@arhi said in DuetLapse available for Alpha testing:

@Danal said in DuetLapse available for Alpha testing:

@arhi said in DuetLapse available for Alpha testing:

URL=(f'{self._base_url}'+'/rr_status?type=1')

@arhi Very interesting, I don't get that, and that line is not a syntax error. Hmmm... Let me think of a way to pin this down.

F-strings are 3.6 python from what I read online, and stretch has max python 3.5.3 ... I'm now going to move to buster and see if it uses newer python

Excellent detective work. I had no idea f was that recent.

arhi

@Danal I don't use python at all so I don't have anything but what's normally there with the distro... so, troubles with buster too it comes with newer python but again

root@octopi:~/DuetLapse/DuetLapse# apt-get install python3-numpy python-numpy
Reading package lists... Done
Building dependency tree
Reading state information... Done
python-numpy is already the newest version (1:1.16.2-1).
python3-numpy is already the newest version (1:1.16.2-1).
root@octopi:~/DuetLapse/DuetLapse# python3 DuetLapse.py -h
Python Library Module 'numpy' is required.
Obtain via 'sudo python3 -m pip install numpy'
root@octopi:~/DuetLapse/DuetLapse# python3 DuetLapse.py
Python Library Module 'numpy' is required.
Obtain via 'sudo python3 -m pip install numpy'
root@octopi:~/DuetLapse/DuetLapse# python3 DuetLapse.py -h
Python Library Module 'numpy' is required.
Obtain via 'sudo python3 -m pip install numpy'
root@octopi:~/DuetLapse/DuetLapse# python3 -m pip install numpy
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Requirement already satisfied: numpy in /usr/local/lib/python3.7/dist-packages (1.18.4)
root@octopi:~/DuetLapse/DuetLapse# pip3 install numpy
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Requirement already satisfied: numpy in /usr/local/lib/python3.7/dist-packages (1.18.4)
root@octopi:~/DuetLapse/DuetLapse# python3 DuetLapse.py -h
Python Library Module 'numpy' is required.
Obtain via 'sudo python3 -m pip install numpy'
root@octopi:~/DuetLapse/DuetLapse# python3 --version
Python 3.7.3
root@octopi:~/DuetLapse/DuetLapse#

root@octopi:~# python3
Python 3.7.3 (default, Dec 20 2019, 18:57:59)
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import subprocess
>>> import sys
>>> import argparse
>>> import time
>>> import numpy as np
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/dist-packages/numpy/core/__init__.py", line 24, in <module>
    from . import multiarray
  File "/usr/local/lib/python3.7/dist-packages/numpy/core/multiarray.py", line 14, in <module>
    from . import overrides
  File "/usr/local/lib/python3.7/dist-packages/numpy/core/overrides.py", line 7, in <module>
    from numpy.core._multiarray_umath import (
ImportError: libf77blas.so.3: cannot open shared object file: No such file or directory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.7/dist-packages/numpy/__init__.py", line 142, in <module>
    from . import core
  File "/usr/local/lib/python3.7/dist-packages/numpy/core/__init__.py", line 50, in <module>
    raise ImportError(msg)
ImportError:

IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!

Importing the numpy C-extensions failed. This error can happen for
many reasons, often due to issues with your setup or how NumPy was
installed.

We have compiled some common reasons and troubleshooting tips at:

    https://numpy.org/devdocs/user/troubleshooting-importerror.html

Please note and check the following:

  * The Python version is: Python3.7 from "/usr/bin/python3"
  * The NumPy version is: "1.18.4"

and make sure that they are the versions you expect.
Please carefully study the documentation linked above for further help.

Original error was: libf77blas.so.3: cannot open shared object file: No such file or directory

>>>

I love how consistent APT system is

arhi

apt-get install libatlas-base-dev

solved the numpy error

arhi

one hint, I don't know python but might be cool to add argument to DuetLapse to point to DuetWebAPI library?

I added directly to code

diff --git a/DuetLapse.py b/DuetLapse.py
index eee4a51..5119d61 100755
--- a/DuetLapse.py
+++ b/DuetLapse.py
@@ -17,6 +17,9 @@ import subprocess
 import sys
 import argparse
 import time
+
+sys.path.insert(1, "../DuetWebAPI/");
+
 try:
     import DuetWebAPI as DWA
 except ImportError:

but would be cool to read that from the argument line so we can normally git pull changes and not need to copy stuff over each other especially as python is ignoring symlinks