Raspberry Pi camera mount for the Nop Head Mendel90 3D Printer

by DanielBull, published

Raspberry Pi camera mount for the Nop Head Mendel90 3D Printer by DanielBull Feb 1, 2014
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This bracket is a simple clip together print which allows you to mount your Raspberry Pi camera on your Mendel90 without requiring any screws. The resulting image gives a good view of the extruder.

Unfortunately this was designed for the original Raspberry Pi camera and does not fit the newer versions.


I produced this design to allow people setting up OctoPrint / OctoPi on their Nop Head Mendel 90 to attach the Raspberry Pi camera without having to drill any holes. It gives an excellent view of the extruder in action and requires no additional screws, nuts or bolts.

This design works best when printed in a 0.2mm layer height and personally I used PLA but I would imagine the design is suitable for any material.

I found no support / scaffolding is necessary except for camera_mount_hinge which requires a little support to print the pegs.

The bracket should fit snugly but loose enough to slide up and down on your Mendel without scratching the frame. Once you have found the best viewing position add a tiny amount of blue tack in the gap in the bracket, then when you push it back in place on your Mendel it will stay still.

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Hey DanielBull, great design, it works perfect with my Printer case. I was wondering if there was going to be an update for the v2.1 of the rpi camera as it doesn't fit in this version? Just wondering, thanks for having this on the site, great work.

Unfortunately I only have the original camera, until I get a newer one I won't be able to update it :(
I will update the description to state its for the original camera as it could confuse people with the newer cameras, thanks for letting me know.

Not a problem!! Thanks again and take care.

Do you happen to have source for a CAD program or OpenSCAD? This is perfect for a printer I use, but we're using a different camera and I'd like to remix it.

I've just uploaded...

Yeah sure, not sure why I didn't upload it originally. It was in 123D Design, let me see if I can dig it out.

Hi Daniel,

What model of a camera this enclosure is for ? As well, the RPi case that is shown mounted on your printer.....do you have a link to it ?

Hi there,
The Camera is the standard Raspberry Pi camera:

The Raspberry Pi case is by Cyntech, it has the optional SD card cover:

For those interested, I managed to source a longer camera cable from Cyntech, this makes placement a bit easier:

This works great, thanks!
I had never used the Pi-camera before, and was a bit dissapointed on the image-quality at first. Then I realised that I was able to change the focal-point and the image became really good, awesome!

Oooo, thats a good tip.
How did you do that?
Was it in software or did you rotate the lens or something?

It was just a matter of rotating the lens. Only the small round thingy in the middle, it has some dents around it where you can get a grip of it. The lens is screwed in placed, and then glued stuck. So it's not ment to be done anything with, but it works fine! When you screw it out a bit, the focal point comes way closer to the camera, and it's no problems getting it perfectly on the print-bed.

Google told me that people have done this before, and that some of them managed to break the lens when screwing it loose the first time. But when I did so, it really didn't feel like there was any risk. Just use your fingers without any tools and it should all work out fine!

Finally had a chance to do this, WOW what a difference!
Like you said I just unscrewed it a small amount and now its ultrasharp :)
Thanks again for the info!

Thought it might be :)
I'll have a go myself, thanks for sharing.

Hi FrozenMist, how do you tell OctoPrint to rotate the image 90 degrees?

Inside the scripts folder is a file called webcamDaemon

Edit this file and change camera_raspi_options to include -rot 270

So for example I changed mine from:
camera_raspi_options="-fps 10"
camera_raspi_options="-rot 270 -fps 10"

Hope this helps :)

Works perfectly, thanks!

Are you streaming your connection wirelessly or do you just like to take occasional pictures?

It was wireless streaming when I took the photos. Just recently I added a network cable as the WiFi isn't great in the room the printer is in.