Materials
| Component | Quantity | (German) Shop |
|---|---|---|
| Raspberry Pi 4 Computer Modell B, 2GB Elementary Kit | 1 | BerryBase |
| 32GB memory card | 1 | BerryBase |
| Raspberry Pi Camera Module 8MP v2 | 1 | BerryBase |
| Flex Cable for Raspberry Pi Camera 0.5 m | 1 | BerryBase |
| Strain gauge | 1 | BerryBase |
| Weight Sensor HX711 | 1 | BerryBase |
| Digital Microphone | 1 | BerryBase |
| Digital Temperature and Humidity sensor DHT22 | 1 | BerryBase |
| Micro HDMI Adapter | 1 | BerryBase |
| Dupont Cable Female - Female 20 cm | 9 | BerryBase |
| Dupont Cable Female - Female 10 cm | 4 | BerryBase |
| Camera Mount | 1 | 3D-Print |
| Filament for 3D print | e.g. 3DJake | |
| Wood, multiplex plate 9 mm | ~ 0,5 m² | Hornbach |
| Wood for perch 12 mm thick | ~ 20 cm | Hornbach |
| M2 x 5 bolt (optional) | 2 | Conrad |
| bolt to screw the mount, e.g. M4 (depending on the mount) + nut | 2 | Hornbach |
| M5 x 20 bolt | 1 | Hornbach |
| M5 washer | 4 | Hornbach |
| Spax screw 3 x 16 | min. 4 | Hornbach |
| Spax screw 3 x 25 (might be replaced by Spax 3 x 16) | 26 | Hornbach |
| Spax 4 x 25 | 2 | Hornbach |
| Bolt loop | 1 | Hornbach |
| Weatherproof wires box | 1 | Hellweg |
| Roofing felt | about 18 x 40 cm | e.g. Hornbach |
| Plexiglas | 30 x 30 mm | Hornbach |
| PVC foam sheet, 2 mm thick (optional) | ~ 15 x 150 mm | Distrelec |
| Staples | ~ 30 | |
| Solder | as required | |
| Mounting adhesive | as required | |
| Paint | as required |
- Side panel (2 x): 345 x 190 mm (with 45° cut, see sketch below)
- Front panel: 120 x 190 mm (with hole for the camera, see sketch below)
- Back panel: 120 x 250 mm
- Bottom panel: 120 x 180 mm
- Silo bottom: 120 x 135 mm
- Interior panel: 120 x 210 mm
- Roof front: 150 x 200 mm
- Roof back: 150 x 155 mm
- Bar (3 x): 120 x 25 mm
| Front sketch | Side sketch |
|---|---|
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Take one fo the side panels and drill holes with a diamter of 3.3 mm at the spots as depicted in the image below.
Important: The holes near to the edges of the panel need to be drilled with a distance of 4.5 mm to the edge.
You can use the first side as stencil to drill the holes at the same spots on the second side. Ohterwise you can do it again like with the first side.
To better fit the screws later you should countersink the holes. Make sure you make the sinks inverted on the both sides.
In this step you will add a hole to put cables through it and a hole to attach the strain gauge
- About 10 mm apart from one of the shorter sides of the bottom panel (120 x 180 mm), drill a hole with a diameter of 5 mm centrally (60 mm apart from both sides)
- About 70 mm furhter to the middel from this whole, drill two holes with 8 mm diameter each, next to each other. Connect them with some furhter drilling or filing, so that the cables (especially the USB-C cable from the power adapter) fit through.
| Before | After |
|---|---|
 |
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Drill two holes in the back panel, where you want to attach the mount (e.g. bolt loop) later.
Cut or drill a hole in the middle of one of the bars, to fit the strain gauge through it.
Dimensions: min. 15 x 15 mm
Result:
Material: Wooden staff, screw, glue Steps:
- Cut wood in two pieces: one ~ 6 cm long, the other ~ 5 cm with one side cut at 45 degree
- Drill a hole in the middle of the longer piece
- Screw the longer piece to the straight side of the shorter piece and (if available) add some glue
| After step 1 | After last step |
|---|---|
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Cut the roofing felt, plexiglas and foam sheet (or whatever material you want to use to protect the fodder from falling down) to the sizes mentioned in the list of materials.
- Print the camera mount with a 3D printer
- Drill a M2 thread in the 4 holes of the mount (if you have nothing to drill it you can also use other methods to fixate the camera later, like with some glue)