Updated Rainberry Design

After purchasing Prusa i3-mk3 3D printer, I could now do more design iterations and improve the Rainberry camera case design further.

Both Pi Zero W and Pi 3 cases are improved with 3D printing tolerances for appropriate fits and top part radius. Additionally, a seal for power cable is now added to reduce water ingress from bottom part of camera.

A different glass of 18 mm and 1.5mm thickness is used in this design, as previous 17.9mmx1.2mm glass is now discontinued.

Updated Design Download Links

Overall dimensions of the Pi Zero W case

92mm x 67.5mm x 26mm

Rendering of Pi Zero W case

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Overall dimensions of the Pi 3 case

100 mm x 117 mm x 26mm

Rendered Images of Pi3 case

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3D Print Settings

  • Bottom part – 0.2 mm with supports and 20% infill
  • Top part seal – 0.2 mm and 20% infill
  • Seal – 0.2 mm and 20% infill
  • USB cable seals – 0.1 mm, 100% infill, slow speeds and supports

Pi Zero W case parts after 3D printing

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Assembly Process shown for Pi Zero W

  1. Put O-ring and glass in the top part of the camera caseIMG_9438.jpg
  2. Put screws in the seal.IMG_9440.jpg
  3. Put seal on the top part of the case and screw it. While tightening screws, press the seal on the case slightly to compress the rubber seal down.img_9443.jpg
  4. Next, place Raspberry Pi Zero W in bottom part of case and tighten the mounting screws.img_9441-e1529179067883.jpg
  5. Place camera on the seal and tighten the screws. Put the cable through the opening and insert into Pi.IMG_9448
  6. Put top part and flip it over to put 4 screws in place.img_9449.jpg
  7. Put the USB seal upper and lower half. Tighten using M1.6 screws.img_9451-e1529179321960.jpg
  8. Finally put the screw in the mounting bracket in the caseIMG_9469

Part List

  • Parts from McMaster.com
    4-40 Thread, 3/4″ Phillips flat head, total 4 (91771A113) for case
    4-40 Thread, 3/16″, total 4 (91772A105) for Pi
    M2 Size, 5MM, total 4 (92000A012) for Pi camera. You can also use M2 if tight.
    M1.6 Size, 4MM, total 6 (92000A002) for glass seal and USB seal
    O-Ring, 13mm id, 1.5mm (5233T39) for seal
    O-Ring, 1.5mm, 1ft length (1187N11) for case and Shrink wrap (6855K14) for USB cable
  • Glass piece 18mmx1.5mm, from Aliexpress.com. Search for flashlight glass in aliexpress.com in case of problem.
  • Swivel mount from Videosecu with 1/4 inch threads
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RainBerryZ and RainBerry3 Outdoor Cases for Raspberry Pi Camera

After a long hiatus, I was able to create two more versions of original weatherproof case for taking Raspberry Pi camera outdoor, RainBerry for Raspberry Pi Zero W and Raspberry Pi 3.

They are available on PinShape and 3DExport.

  • RainBerryZ for Raspberry Pi Zero W – Get it from PinShapeZero
  • RainBerry3 for Raspberry Pi Zero 3 or 2 – Get it from PinShape3

Also available on 3DExport, Pi 3 and Pi Zero.

If you do not have 3D printer like me, you can order them from 3DHubs, Shapeways, Sculpteo, i.materialise, MakeXZY or your local public library.

Here are some snapshots of RaspberryZ.

small-camera-pi-zero1

Placing screws in the seal holes before assembling in the case. seal-assy

Than place the seal ring of camera opening followed by place glass cover. Finally put the camera seal and then tighten the screws. Put the seal around the side grove and cut it to fit all sides.

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Top case with rubber seal of glass and camera seal holder assembled.IMG_2395

After assembly of camera

IMG_2396

Fully ready to roll !

IMG_2397

IMG_5425

Image from the camera, please ignore the mesh screen in the window.

cam1

Here are RainBerry3 Snapshots. Case is slightly big to accommodate the bluetooth and maintain square shape.

small-camera-Pi-3-1

small-camera-Pi-3 v30-v6

Top case with glass, O ring and o ring assembled in the side groves. IMG_5430

After camera is assembled with M1.6 Size, 4MM. I found it is much easier to use them than M2 Size, 5MM ones which fit tighter.

IMG_5432

Ready to roll !

IMG_5433

Finally all 3 cameras. Hurrah !

IMG_2402

It uses same screws and mounts as RainBerry earlier version.

  • Parts from McMaster.com
    4-40 Thread, 3/4″ Phillips flat head, total 4 (91771A113) for case
    4-40 Thread, 3/16″, total 4 (91772A105) for Pi
    M2 Size, 5MM, total 4 (92000A012) for Pi camera. You can also use M2 if tight.
    M1.6 Size, 4MM, total 6 (92000A002) for seals
    O-Ring, 13mm id, 1.5mm (5233T39) for seal
    O-Ring, 1.5mm, 1ft length (1187N11) for case and Shrink wrap (6855K14) for USB cable
  • Glass piece 17.9mm x 1.2mm, from tinydeal.com (HLD-242646) or dx.com (SKU: 10640)
  • Glass piece 18mmx1.5mm, from Aliexpress.com. Search for flashlight glass in aliexpress.com in case of problem.
  • Swivel mount from Videosecu with 1/4 inch threads

Thank you for your all support and number of requests for new versions.

Get them from links below and get it printed.

  • RainBerryZ for Raspberry Pi Zero W – Get it from PinShapeZero
  • RainBerry3 for Raspberry Pi Zero 3 or 2 – Get it from PinShape3

How I Designed a Compact Weatherproof Raspberry Pi Camera Case

Motivated by the video, Militarizing Your Backyard with Python, I was tinkering with Raspberry Pi for Squirrel recognition to protect my garden bustling with sweet peas and tomatoes. As a step towards the goal, I started first programming Raspberry Pi A+ with OpenCV and then emailing me the face of any person intruding in my backyard. However I found no suitable Pi case in the market which is compact, weatherproof and has elegant look. Fake security camera case sold on Amazon was quite cheap but broke easily. It made me to think towards designing a compact case which can be used outside to monitor the backyard garden and get alerts.

Design

I sat down and sketched the general shape of case on back of a scratch paper. Here is how my sketch looked. I chose to stick with Square shape, though Pi A+ is a rectangular shape.

Sketch

Sizing the Case

With no experience in designing plastic parts meant watching tutorials from YouTube and learning from the iterations. It took one month for me to become familiar with tools. I broke down the design work several intermediate goals, beginning with obtaining the dimensions of Pi A+, Pi Camera, WiFi adapter and micro USB power cord. Vernier with LCD display manufactured by General Tools was very handy for this work. Ubiquitously available CAD models of Pi and Pi camera also helped to verify the clearances in the design by importing them and assembling with the designed case. Many thanks to the effort by several community members of GrabCAD.

Render

Next step was to size and fit all the parts in the given space. Mounting Pi A+ with SD card and WiFi adapter in the case was easy. Mounting the Pi camera above Pi in as small as possible was a little difficult. I chose to mount camera directly on the top case since the data cable of Pi is flexible.

CameraFeatures

Weatherproofing method of cellphone or electronic case is pretty standard and based on using a weatherproof seal around the case. It was not difficult to split the case into two parts and then add the groove for holding the seal. Similarly seal of the glass is hold together by the seal holder attached to the case. It compresses the seal and hold it in the place.

Designing of screw bosses was a totally new area for me. I could not find any reliable information source and resorted to plastic part design guidelines from several plastic manufactures and handbooks. I am providing the details of the one from the book, Injection Mold Design Engineering by Davide Kazmer. Suggested size of d was 88% of D.

wp

I used FDM method for 3D printing in ABS plastic due to limitations of escape holes of SLS printing. This is how the camera looks after final design, 3D printing and assembly.

image1-v2

Weatherproofing Test

I tested camera in rain for more than 2 hours and no water entered in it. Here is the picture of it in rain.

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After the test in thunderstorm, I opened the camera to see no water in case.

after-waterproof

3D Model and BOM

You can view the 3D model and 3D print it from Pinshape. If you do not have the 3D printer then try finding a 3D printer on makexyz.com in your area and use it to print.

Models also available for new versions of Pi3 as described in this recent post and can be downloaded from Pinshape links, Pi 3 and ZeroW.

Camera Parts

  • Parts from McMaster.com
    4-40 Thread, 3/4″ Phillips flat head, total 4 (91771A113) for case
    4-40 Thread, 3/16″, total 4 (91772A105) for Pi
    M2 Size, 5MM, total 4 (92000A012) for Pi camera
    M1.6 Size, 4MM, total 4 (92000A002) for seal
    O-Ring, 13mm id, 1.5mm (5233T39) for seal
    O-Ring, 1.5mm, 1ft length (1187N11) for case and Shrink wrap (6855K14) for USB cable
  • Glass piece 17.9mm x 1.2mm, from tinydeal.com (HLD-242646) or dx.com (SKU: 10640)
  • Glass piece 18mmx 1.5mm from Aliexpress.com, since 17.9 mm is not available.
  • Swivel mount from Videosecu with 1/4 inch threads

Here is the timelapse video recorded with this camera.

Timelapse with Raspberry Pi and RainBerry

Raspberry Pi is quite useful in recording timelapse videos. Personally I liked Raspberry Pi A+ version due to small form factor and low power consumption. With advent of RainBerry case it is easy to mount the Pi camera outdoor and record the time lapse video.

With just one raspivid command you can start recording the images at a set period and then stitch images to a desired video format with mencoder.

I mounted RainBerry in my backyard and recorded timelapse of 24 hrs period. Recording images at 1 minute time interval created this video. When recording video over such a long period best way is to login to Pi over vnc, start a screen session, start time lapse and detach screen. To stop login to pi, restore screen and stop timelapse.

Get your RainBerry case from Pinshape to create timelapse for either 3D print, city traffic, garden, sky or nature.

image-outdoor3

Video below is over a shorter period of 1hr approximately focusing on the sky with 1 minute image recording.