Bill of materials
The guts structure:
| Material | Purpose | Quantity | Price | Source |
|---|---|---|---|---|
| PVC pipe | Feeding mech, connects the deposit and holds the screw | 1 | €3 | Obi |
| big PVC tube | cat food storage | 1 | €6 | Obi |
| PETG filament | Pipe holder,motor mount, pipe cap, feed screw | estimated 350g | ... | FabLab inventory |
| wood 3mm | wires house structure, and prototyping | 1 sheet | ... | FabLab inventory |
| Bearing | hold the feed screw | x1 | ... | FabLab inventory |
| Turn table | spin the feed mech | x1 | ... | Amazon |
| TOTAL COST | ... | ... | €9 |
Main mech electronics:
| Material | Purpose | Quantity | Price | Source |
|---|---|---|---|---|
| NEMA 17 stepper motors | Move feed screw, Move the feeding mech like a tank | x2 | €18.26 | online |
| DM556M Stepper drivers | controll the stepper motors | X2 | €69,80 | DOLD Mechatronik |
| Wires | connecting everything together | ... | ... | FabLab inventory |
| ESP32-S3-DevKitC-1 Board | main microcontroller | X1 | €9.99 | Amazon |
| ATtiny 1614 | catgate microcontrollers | X3 | ... | FabLab inventory |
| TOTAL COST | ... | ... | €97,05 |