So about that Camera in the 3D45... It appears to be a an M-JPEG stream. I found this URL when directly accessing the printer:

http://[ip-of-printer]:10123

It immediately brings up a default web server landing page of "M-JPEG streamer":

^- Notice a small screenshot of the camera at the bottom of that image? Hehehe...

Why they want the extra overhead of running an embedded Java, and encoding individual JPEG images, is insane. First thing that pops into my head is, "how unsecure is this free-standing java web server on a printer with no security?" Good thing I run these printers on a dedicated Untrusted VLAN for IoT crap. I would never let this thing on my regular wireless.

Clicking on the Stream, clearly shows a simple <img src="/?action=stream" /> HTML code that one could embed to show the camera.

And it streams the JPEG images, with just that img!

As a matter of fact, hitting the url directly brings up a browser-window of what i think is around 800x640 resolution video of the camera feed: http://[ip-of-printer]:10123/?action=stream. Note no "HTTPS", just plaintext HTTP - and no security.

That URL is also compatible with VideoLAN video streaming:

There's also snapshots built in! So you can easily use it for time lapse prints:

http://[ip-of-printer]:10123/?action=snapshot

The final interesting fact is, we have camera controls!

So about OctoPrint and cameras... It got me thinking, can it stream the streaming URL?

YES IT CAN!!!

So in summary, when we get the 3D45 working with this plugin, we can clearly document how one would add the Camera to their octoprint instance by saying something like:

To display the camera, go into OctoPrint's settings for Webcam & Timelaspe, and enter the URL: http://[ip-of-printer]:10123/?action=stream

Nice!

Dremel 3d45 #30

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