HardLabs

VibrationDamper

starline·VibrationDamper·pcb/kicad/Harmonic_Damper_KiCad_A10_Routed/Harmonic_Damper.kicad_pcb

VibrationDamper PCB layout, top view — open source STM32 board by starline

About the VibrationDamper PCB

VibrationDamper is an open source STM32 PCB design by starline, published on GitHub under the MIT license. It is a 2-layer board measuring 80 × 55 mm, with 66 components from 36 distinct parts.

Its main chip is the STM32G431CBT6, from the STM32 family. Other key parts include the ICM-42688-P, DRV8874PWP (DRV8876 pin-compatible) and AP63203 (fixed 3.3V). By type, the board carries 32 capacitors, 18 resistors, 5 ICs, 5 connectors, 3 inductors and 2 diodes.

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

From the project

Active electronic vibration damper for CNC: STM32 + IMU sensing and dual H-bridge actuators for real-time spindle stabilization

Open HarmonicDamper.kicadpro in KiCad 10, then open PCB Editor.

Board outline: 80 × 55 mm (Edge.Cuts 100,50 → 180,105). Tracks were cleared after re-placement — re-route, then DRC. Component placement is courtyard-clean.

Routing strategy: - F.Cu: high-current actuator outputs, buck switching loop, driver charge-pump/reference networks, filtered analog/IMU power and short SMD fan-outs. - B.Cu: +12 V backbone, +3.3 V distribution and long low-current control/SPI/debug signals. - GND zones are defined on both F.Cu and B.Cu; press B after opening to refill them.

Main components on the VibrationDamper

STM32G431CBT6ICM-42688-PDRV8874PWP (DRV8876 pin-compatible)AP63203 (fixed 3.3V)

VibrationDamper bill of materials (BOM)

66 components, 36 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32G431CBT6
U1
1
ICM-42688-P
U2
2
DRV8874PWP (DRV8876 pin-compatible)
U3, U4
1
AP63203 (fixed 3.3V)
U5
1
12V INPUT
J1
1
ACTUATOR 1
J2
1
ACTUATOR 2
J3
1
SWD
J4
1
UART
J5
1
10A
F1
1
SMBJ18A
D1
1
SS54
D2
2
600R@100MHz
FB1, FB2
1
3.9uH >=3A
L1
1
1000uF/25V
C1
1
1uF/50V
C2
3
100nF/50V
C3, C32, C42
1
10uF/25V
C4
10
100nF
C5, C8, C9, C10, C11, C14, C15, C17 +2
2
22uF/10V
C6, C7
Show 16 more
QtyPartRefs
1
4.7uF
C12
1
1uF
C13
1
2.2uF
C16
3
10nF
C18, C36, C46
2
100uF/25V
C30, C40
2
1uF/25V
C31, C41
2
100nF/16V
C33, C43
2
22nF/50V
C34, C44
4
10k
R1, R6, R15, R21
1
100k
R2
3
22R
R3, R4, R5
2
1k 1%
R10, R16
2
10k 1%
R11, R17
2
1.37k 1%
R12, R18
2
0R
R13, R19
2
20k
R14, R20

VibrationDamper design files

The KiCad project lives in the starline/VibrationDamper repository on GitHub; these links point at the commit this page was built from.

VibrationDamper: common questions

What microcontroller does the VibrationDamper use?

The VibrationDamper is built around the STM32G431CBT6, from the STM32 family.

How big is the VibrationDamper PCB?

The VibrationDamper measures 80 × 55 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the VibrationDamper?

66 components, from 36 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 VibrationDamper design files?

From the starline/VibrationDamper 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 VibrationDamper design in my own project?

Yes, under the terms of its MIT license, which starline chose for the repository.

Can I test firmware for the VibrationDamper without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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