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Automated micropipetting system

Sean-Obi·automated-micropipetting-system·hardware/pcb_design.kicad_pcb

Automated micropipetting system PCB layout, top view — open source board by Sean-Obi

About the Automated micropipetting system PCB

Automated micropipetting system is an open source PCB design by Sean-Obi, published on GitHub. It is a 2-layer board measuring 132 × 80 mm, with 23 components from 23 distinct parts.

Other key parts include the A4988 (X axis), A4988 (Y axis), A4988 (Z axis), Elegoo Mega 2560 R3 and Actuonix LAC. By type, the board carries 5 modules, 4 switches, 3 ICs, 3 connectors, 2 resistors and 1 buzzer.

It belongs with the robotics & motion and displays & leds designs in this gallery.

From the project

Board - 132 × 80 mm, 2 layers, 1.6 mm thick, with four M3 mounting holes. - GND pour on both layers.

Board - 132 × 80 mm, 2 layers, 1.6 mm thick, with four M3 mounting holes. - GND pour on both layers.

Track widths | Net class | Nets | Width | |---|---|---| | Power | GND, +5V, VMOT, actuator and logic supply | 1.0 mm | | Motor | Stepper coils | 0.8 mm | | Signal | Everything else | 0.3 mm |

The board passes KiCad DRC with 0 violations and 0 unconnected pads.

On-board - 3 × Pololu-format A4988 sockets (X/Y/Z) - R1/R2 on the LAC control line - Buzzer - 3 × 5.08 mm screw terminals for the power inputs

Automated micropipetting system, from the project README
From the project README

Main components on the Automated micropipetting system

A4988 (X axis)A4988 (Y axis)A4988 (Z axis)Elegoo Mega 2560 R3Actuonix LAC

Automated micropipetting system bill of materials (BOM)

23 components, 23 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
A4988 (X axis)
U1
1
A4988 (Y axis)
U2
1
A4988 (Z axis)
U3
1
Elegoo Mega 2560 R3
A1
1
Actuonix LAC
A2
1
Stepper motor (X)
M1
1
Stepper motor (Y)
M2
1
Stepper motor (Z)
M3
1
Actuator power in
J1
1
Motor power in
J2
1
Logic power in
J3
1
Buzzer
BZ1
1
Nextion NX4827T043
DS1
1
I2C LCD (not used)
DS2
1
LM2596 (12 V actuator)
PS1
1
LM2596 (motor)
PS2
1
LM2596 (logic)
PS3
1
X end-stop
SW1
1
Y end-stop
SW2
1
Z end-stop
SW3
Show 3 more
QtyPartRefs
1
4x3 keypad
SW4
1
R_pullup (value TBD)
R1
1
R_series (value TBD)
R2

Automated micropipetting system design files

The KiCad project lives in the Sean-Obi/automated-micropipetting-system repository on GitHub; these links point at the commit this page was built from.

Automated micropipetting system: common questions

How big is the Automated micropipetting system PCB?

The Automated micropipetting system measures 132 × 80 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Automated micropipetting system?

23 components, from 23 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Automated micropipetting system design files?

From the Sean-Obi/automated-micropipetting-system repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Automated micropipetting system design in my own project?

The repository has no license, so all rights stay with Sean-Obi. Use it as a reference, and ask the author before reusing the design.

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