So I made the following improvements to the enclosure and internals.

• The feeder is now 86cm (34in) tall (down from over a meter on the previous version)
• Fewer parts and materials (and shorter wires) required to build
• PIR sensor moved to camera arm
• Dispense path is more difficult to jam
• Deposit pathway is shorter and easier to mount the sensor on
• Better way of placing internal baffles

I've tested it, but have left it turned off for now. I'll first turn it on and let it run on a day I can work from home to monitor it. It took a bit of tweaking to get everything to fit while keeping it simple.

Here's what it looks like now vs what it looked like before.

Now

Before

I tried using one of those pole mounts for lights and cameras, but in reverse. I got this for 11 EUR on Amazon.

It works prety well, but the feeder still needs a secondary point of support below the mount. I used a leftover bit of 110mm PVC pipe for this, but will hopefully think of a better way soon. If you are looking for hose clamps, sorry, I'm using all of them right now.

The enclosure is now basically 4 sections. Here they are, and the parts they're made of.

1. The deposit assembly.

2. The dispense platform

3. The electronics

I was too lazy to disassemble the camera arm - it consists of:

• 110mm to 50mm adapter
• 50mm 90° elbow joint
• ~10cm length of 50mm PVC pipe
• ~3cm 200° arc of 50mm PVC pipe to secure the PIR lens
• 50mm PVC end cap
• small piece of transparency to protect the camera lens

4. The hopper and dispenser