NO!!! I want to print more!!!! or Offloading octoprint timelapse videos

octo

I use octoprint to manage my printer.  When I can, I batch print.  I will literally print things back to back. But I also love the timelapse and we have all seen it….warning

 

But I have more robot stuff to print!!!!

Settle down there smart guy.

Nobody asked you!

Ok, interruptions aside.  Running octoprint on an original pi is a little slow.

Did you say apple pi?

captain-picard-facepalmI don’t like this guy.

I said ORIGINAL pi.  Yes, old school slow.

So what happens if you try to print again while it’s rending a timelapse… well, you get a lot of stalls on the print, meaning the head sits over the print causing some unnecessary melting.

So how do you fix it if you are so smart?

Well, you would offload it.  I have a linux box that handles all sorts of random tasks.  It could do it.

So here is how I offload it.

  1.  setup an NFS share to a nas/other server
     192.168.X.XX:/mnt/vol/dataset1 /home/pi/fs nfs nouser,atime,auto,rw,dev,exec,suid 0   0 
  2. Configure octoprint to store the timelapse pics on this NFS share.paths
  3. All that is doing is changing the location of the timelapse, not offloading jerk.
    I KNOW!!!  I’m not done!
    Sorry
    So now we need to setup the exact same share on the other linux box.  If I had thought about it early on I would have changed the path on the pi to be something like /media/share/ instead of /home/pi/fs
    So we put the same path on the other linux box.
    (see 2.)
  4. Now the fun stuff.
    Finally!
    I created a small shell script on the PI.

    #!/bin/bash
    ssh root@192.168.X.X "ffmpeg $@"
    if [ $? -eq 0 ]
    then
    # everything was good
    exit 0
    else
    exit 1
    fi
    
  5. Set up your pi to be able to login with no password (using keys instead) so that the ssh connection will not hold anything up.
  6. Configure octoprint to use this new script as your ffmpeg path.
    2016-11-07-19_03_42-octoprint

So let me walk you though it.

Good idea.

Are you being nice all of the sudden?

No.

Anyway.  So octoprint is now setup to store your timelapse images on the network somewhere.  Linux box is setup to have the exact same path.  When your print is done octoprint executes the timelapse.sh script thinking that is ffmpeg.  So it runs it waiting for it to exit with a success or failure.  So in the script, we ssh to the linux box, tell it to run the ffmpeg with the $@ which means everything octoprint wanted to pass to ffmpeg locally we are passing to the remote ffmpeg.  The other box does all the heavy lifting and returns an exit code, we pass that exit code back to octoprint.  It’s none the wiser.

The cpu is next to nothing because we are just waiting for the ssh command to finish.  So I have started additional prints with minimal issues.

I have noticed that if you keep your filenames short and sweet it helps.

Is this a great solution or what?

No.  Buy a better pie.

Don’t you mean a “pi?”  Haha.  Jerk.

pievpi

Time lapse in new printer enclosure

surprised-rainbow-faceSo awhile back I came across an instructables article regarding using some ikea lack tables to make a 3dprinter enclosure…..

I love ikea….

So this was the project.  http://www.instructables.com/id/3d-Printer-Enclosure-from-Upcycled-Furniture/

I went to ikea.  Got 2 lack tables and put them together…. I want my printer higher up.  ELEVATE TO THE LEVEL OF THE GODS!!! no.  just high enough I can watch it cause I like to watch it go back and forth while I make printer noises.

So I ordered a 3rd table.  Put it on top.  Sweet.  Much better.  I moved the printer into the enclosure this weekend (no sides put on it yet) and decided I needed to get the lighting in place.  So I took some neopixel strips I had laying around and hooked them up to an arduino.

13694706_1455593267790887_1215760066_nOk, so that’s now how I am leaving it 🙂  but it did look cool.   Now I can set the colors.  Plain white for printing.  I am trying to figure out how in octoprint to get a hook in to detect when it’s heating up.  That way I can turn the lights orange or red to indicate heating phase.

 

 

So I did a timelapse and a vid.   The vid of the whole rig setup

Here is the timelapse test print

 

I am working more on trying to get some good photo and video in with these projects too.  If you like the videos give a thumbs up and a subscribe.