Vacuum Pump
This 24V vacuum pump sucks air through the seeder’s luer lock needle in order to suction-hold a seed on the needle tip during planting. It features a PCB direct-soldered onto the back of the motor to provide EMI filtering and smooth startup current draw.
Specs
| input voltage | 24V DC |
| current draw | 0.5A |
| connectors | Three 3/16" male quick-connect terminals for 24V, GND, and PE (protected earth) |
| barb size | For 6mm ID tubing |
| pcb | PCB with EMI filtering and soft-start circuitry soldered onto back of motor |
| pcb color | Matte black with gold ENIG |
| Price | $40.00 |
| Quantity |
Express - 1
Express XL - 1 |
| Purchase | The FarmBot Shop |
| internal part name | Vacuum Pump - 24V with EMI Filter |
| rev | A |
| vendor | LDO |
| cost | $16.90 |
Thank you Réstep
The EMI filter circuit included on the back of the v1.1 vacuum pump is based on Chris Arntzen’s openly licensed Réstep EMI Filter add-on for older versions of FarmBot’s vacuum pump.
Thank you Chris for lending your expertise in electronics design to the FarmBot community with this fantastic open-source contribution!
Component tests
| Test | Description | Target | Tolerance |
|---|---|---|---|
| Performance | Connect the vacuum pump to a 24V power source, vacuum air tube, UTM, and seeder tool. | The vacuum should exert enough suction to pick up a seed | N/A |
| Terminal size | Connect a vacuum pump cable. | The cable’s connectors should connect to the terminals as expected | N/A |
| PCB color | Inspect the PCB’s color. | Matte black | N/A |
| Size | Assembly a vacuum pump, vacuum pump mount plate, vacuum pump cover, and z-axis extrusion according to the FarmBot system design. | Vacuum pump should fit inside the housing without interference, | N/A |
| Inlet size | Connect a vacuum air tube to the vacuum pump’s inlet. | Tube should connect as expected, requiring a small amount of force to remove. | N/A |