Timelapses, are they possible?



  • Good morning, in my Raspberry Pi3 I've installed MotionEye and it works well but it's really unuseful to take "printer-sync" timelapses....is there some other third party software to install on Raspy wich allows me to take timelapses sync with the layer change?

    I have read some options here but they require the insertion of some gcodes in the slicer with examples for Cura (with a given Phyton script) and Simplify 3D, I'm starting to use IdeaMaker so I don't know if this suits with this slicer...

    Any suggestion?
    Thanks!
    Andrea

    p.s.
    My raspy isn't connected via USB with the Duet so I can't use Octoprint (wich I didn't use because I want to "command" the printer via the Duet Web Control





  • @Veti said in Timelapses, are they possible?:

    see
    https://github.com/kriechi/DuetRRF-timelapse

    It's exactly what I've read but I can't find a Wiki to understand how to use it...I'm not a Raspberry expert so for me the issue are:

    • Raspberry Pi / Single-Board Computer on the same network as your Duet
      with Python 3 and the requests package
    • Webcam that returns snapshot pictures (still image) via an URL
      mjpg-streamer or similiar: http://127.0.0.1:8080/?action=snapshot

    I think that I had to "throw away" motion eye, right? Or is it possible to use it feature to have an URL fort he still images?

    37bb2018-56e6-46e9-b017-8624057ef1cc-image.png

    In case not should I install only Python 3 and mjpg-streamer to my Raspy?

    Thanks
    Andrea

    p.s.
    as you can see I'm not a Raspberry/Linux expert....sorry



  • @the_dragonlord said in Timelapses, are they possible?:

    I think that I had to "throw away" motion eye, right? Or is it possible to use it feature to have an URL fort he still images?

    if it can produce single images then no, otherwise yes.



  • @Veti said in Timelapses, are they possible?:

    @the_dragonlord said in Timelapses, are they possible?:

    I think that I had to "throw away" motion eye, right? Or is it possible to use it feature to have an URL fort he still images?

    if it can produce single images then no, otherwise yes.

    It produces single images

    0f64af5d-1fa9-4c7a-9a5f-abe30d44c61f-image.png

    But I can't undesrstand how the command M118 P4 S"LAYER CHANGE" ; take a picture could trigger the shooting of a pic....where do I have to put the URL given? In the web control? I am missing something...



  • @the_dragonlord said in Timelapses, are they possible?:

    But I can't undesrstand how the command M118 P4 S"LAYER CHANGE" ; take a picture could trigger the shooting of a pic....where do I have to put the URL given? In the web control? I am missing something...

    the python script enables a telnet connection to the duet and listens for the "LAYER CHANGE" info
    the webcam url is an option for the python script



  • I'm the author of https://github.com/kriechi/DuetRRF-timelapse - Ask me Anything 😃

    Generating timelapse videos is quiet an opinionated topic in 3D-printing - everybody has a slightly different setup and preferred way of doing it. This is how I currently run my printer setup:

    There are two things needed to make print-synced timelapses:

    • your slicer needs to insert the M118 commands on every layer change
    • your raspberry pi needs to run the timelapse.py script

    You need to enable Telnet support in your Duet board with M586 P2 S1.
    You can start the timelapse script on your RaspberryPi like this:
    ./timelapse.py some-folder-for-all-images/ 192.168.1.42 http://127.0.0.1:8080/?action=snapshot
    (with the IP address of the Duet printer, and the URL is in my case mjpg-streamer returning a single jpg image)



  • @resam said in Timelapses, are they possible?:

    I'm the author of https://github.com/kriechi/DuetRRF-timelapse - Ask me Anything 😃

    Generating timelapse videos is quiet an opinionated topic in 3D-printing - everybody has a slightly different setup and preferred way of doing it. This is how I currently run my printer setup:

    There are two things needed to make print-synced timelapses:

    • your slicer needs to insert the M118 commands on every layer change
    • your raspberry pi needs to run the timelapse.py script

    You need to enable Telnet support in your Duet board with M586 P2 S1.
    You can start the timelapse script on your RaspberryPi like this:
    ./timelapse.py some-folder-for-all-images/ 192.168.1.42 http://127.0.0.1:8080/?action=snapshot
    (with the IP address of the Duet printer, and the URL is in my case mjpg-streamer returning a single jpg image)

    ok, now the fog starts to raise a little....so, in order:

    1. I can keep motion eye on my Raspy and install Python 3 and then copy timelapse.py on the Raspy SD
    2. I have to insert the M118 in the layer change as you wrote on github:
      M400 ; wait for all movement to complete
      M118 P4 S"LAYER CHANGE" ; take a picture
      G4 P500 ; wait a bit
      does this work on IdeaMaker too (I think so)
    3. Do I have to execute manually each time the launch of the script and the timelapse rendering? Isn't it possible to execute them automatically in some way?
    4. Least and last I didn't understand where the final timelapse MP4 will be stored...

    Thanks for your help



    1. I'm not familiar with motioneye - if you find a URL that you can call and it returns a single still frame as jpg or png, then yes.
    2. I'm not familiar with IdeaMaker - most slicers have some "on layer change" script section were you can enter a few g-code commands
    3. with a bit of Linux knowledge it should be easy to do - with varying levels of complexity. I would recommend searching the web for "crontab" or "systemd" in this context
    4. All the still frames and the final rendered movie will be in the folder path you passed to the timelapse script as first argument


  • @resam said in Timelapses, are they possible?:

    1. I'm not familiar with motioneye - if you find a URL that you can call and it returns a single still frame as jpg or png, then yes.
    2. I'm not familiar with IdeaMaker - most slicers have some "on layer change" script section were you can enter a few g-code commands
    3. with a bit of Linux knowledge it should be easy to do - with varying levels of complexity. I would recommend searching the web for "crontab" or "systemd" in this context
    4. All the still frames and the final rendered movie will be in the folder path you passed to the timelapse script as first argument

    ok, thanks! I'll do some searching and testing!



  • @resam said in Timelapses, are they possible?:

    1. I'm not familiar with motioneye - if you find a URL that you can call and it returns a single still frame as jpg or png, then yes.
    2. I'm not familiar with IdeaMaker - most slicers have some "on layer change" script section were you can enter a few g-code commands
    3. with a bit of Linux knowledge it should be easy to do - with varying levels of complexity. I would recommend searching the web for "crontab" or "systemd" in this context
    4. All the still frames and the final rendered movie will be in the folder path you passed to the timelapse script as first argument

    Hi, I've installed everything but it doesn't work (of course I've missed something).

    If can help when the I connect with putty I get this error message:

    956b8e51-4f89-424f-a9e4-8cdef2627330-image.png

    this is what I've inserted in etc/profile:
    sudo python /home/pi/timelapse.py timelapses/ 192.168.1.7 http://192.1.168.13:8080/?action=snapshot



  • try with sudo python3 ....

    python is the old version - python3 is the new one (which you need).



  • This post is deleted!


  • go and run: python -V and then python3 -V

    You will probably see that the first one returns 2.7.something and the other one 3.something.else.
    We need 3.something for the timelapse script to work.

    You can also avoid this monkey dance by simply calling the timelapse script itself:
    sudo /home/pi/timelapse.py timelapses/ 192.168.1.7 http://192.1.168.13:8080/?action=snapshot



  • @resam said in Timelapses, are they possible?:

    go and run: python -V and then python3 -V

    You will probably see that the first one returns 2.7.something and the other one 3.something.else.
    We need 3.something for the timelapse script to work.

    You can also avoid this monkey dance by simply calling the timelapse script itself:
    sudo /home/pi/timelapse.py timelapses/ 192.168.1.7 http://192.1.168.13:8080/?action=snapshot

    uh ok....I'm not a Linux expert....I've change from python to python3 and now no error appear logging into....I've started a trial print to see if all works...I'll let you know in few minutes!



  • @resam said in Timelapses, are they possible?:

    go and run: python -V and then python3 -V

    You will probably see that the first one returns 2.7.something and the other one 3.something.else.
    We need 3.something for the timelapse script to work.

    You can also avoid this monkey dance by simply calling the timelapse script itself:
    sudo /home/pi/timelapse.py timelapses/ 192.168.1.7 http://192.1.168.13:8080/?action=snapshot

    it's printing but I don't see images going into the folder as long as layers changes



  • just start the script in the interactive console (putty) directly. It should print a few log lines so we can see what is happening.



  • @resam said in Timelapses, are they possible?:

    just start the script in the interactive console (putty) directly. It should print a few log lines so we can see what is happening.

    dde198c5-4298-45a4-ab05-5d539bdbc6db-image.png



  • Did you enable Telnet in your printer config?



  • @resam said in Timelapses, are they possible?:

    Did you enable Telnet in your printer config?

    yes
    a9c36ca6-4089-4013-ab98-eb107a8c3584-image.png



  • ok - that looks right. However it is failing to send commands to the printer...
    Does the error message repeat after 15-20 seconds?



  • @resam said in Timelapses, are they possible?:

    ok - that looks right. However it is failing to send commands to the printer...
    Does the error message repeat after 15-20 seconds?

    yes it does



  • do you have the timelapse python script running multiple times?
    reboot the pi and make sure to not start it more than once.
    it's probably easier for debugging to remove the autostart and enter the command into putty directly.



  • @resam said in Timelapses, are they possible?:

    do you have the timelapse python script running multiple times?
    reboot the pi and make sure to not start it more than once.
    it's probably easier for debugging to remove the autostart and enter the command into putty directly.

    yes you're right it's running twice I'm afraid, once for the autostart and maybe the second when I log in?



  • if you used /etc/profile or .bashrc, then yes - this will likely cause multiple starts.


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