HardLabs

3d printer

Angelo13C·3d-printer·electronics/controller.kicad_pcb

3d printer PCB layout, top view — open source ESP32 board by Angelo13C

About the 3d printer PCB

3d printer is an open source ESP32 PCB design by Angelo13C, published on GitHub. It is a 4-layer board measuring 102 × 102 mm, with 91 components from 51 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the AZ1084CD-3.3TRG1, MT29F2G01ABAGDWB-IT, USBLC6-2SC6, TMC2209_SILENTSTEPSTICK and MCU45P04-TP. By type, the board carries 26 resistors, 25 capacitors, 18 connectors, 10 ICs, 4 transistors and 4 fuses.

From the project

Firmware, electronics, mechanics and control interface of a 3D printer

The board receives stable 24V from an external power supply unit and requires around 16A of current at peak, but during almost all of the time it requires around 10A of current (because the heaters are not fully on after having reached the target temperature).

On the board there's a switching regulator that converts the 24V to 5V, which is used by the endstops, the BLTouch and by the linear regulator that instead converts the 5V to 3.3V which is used by the ESP32-S3-WROOM-1 microcontroller, the MT29F2G01ABAGDWB-IT NAND flash memory.

Main components on the 3d printer

AZ1084CD-3.3TRG1ESP32-S3-WROOM-1MT29F2G01ABAGDWB-ITUSBLC6-2SC6TMC2209_SILENTSTEPSTICKMCU45P04-TPK7805MT-1000R4

3d printer bill of materials (BOM)

91 components, 51 distinct parts.

QtyPartRefs
1
AZ1084CD-3.3TRG1
U1
1
ESP32-S3-WROOM-1
U3
1
MT29F2G01ABAGDWB-IT
U4
1
USBLC6-2SC6
U5
4
TMC2209_SILENTSTEPSTICK
U6, U7, U8, U9
1
MCU45P04-TP
U10
1
K7805MT-1000R4
U11
3
SIA440DJ-T1-GE3
Q1, Q3, Q4
1
SISS76LDN-T1-GE3
Q2
1
Power_Supply_Connector
J1
1
X_Axis_Endstop_Connector
J2
1
Y_Axis_Endstop_Connector
J3
1
USB_C_Receptacle_USB2.0
J4
1
Hotend_Connector
J5
1
Heated_Bed_Connector
J6
1
Layer_Fan_Connector
J8
1
Hotend_Thermistor_Connector
J9
1
Heated_Bed_Thermistor_Connector
J10
1
Bl_Touch_Gnd_ZMin_Connector
J11
1
Bl_Touch_Signal_Vcc_Gnd_Connector
J12
Show 31 more
QtyPartRefs
1
Motor_A_Connector
J13
1
Motor_B_Connector
J14
1
Motor_Z_Connector
J15
1
Motor_E_Connector
J16
1
Extra_Pin_1_Connector
J17
1
Extra_Pin_2_Connector
J18
1
Hotend_Fan_Connector
J19
1
25A
F1
1
12A
F2
1
2.5A
F3
1
250mA
F4
1
Pause/Resume_Button
SW3
1
10V
D1
2
SK510A-LTP
D2, D3
7
10µF 50V
C1, C2, C17, C18, C19, C20, C21
2
3.3µF 10V
C3, C4
1
22µF 25V
C5
5
0.1µF 50V
C6, C8, C9, C10, C11
1
1µF 16V
C7
1
0.1µF 10V
C12
4
100µF 35V
C13, C14, C15, C16
2
10nF 20V
C22, C23
2
22µF 10V
C24, C25
10
10KΩ
R1, R2, R7, R12, R15, R17, R19, R22 +2
3
1KΩ
R3, R6, R24
2
2KΩ
R4, R5
2
5.1KΩ
R8, R9
1
2.7KΩ
R10
3
4.7KΩ
R11, R20, R21
4
300Ω
R13, R14, R16, R18
1
100KΩ
R26

3d printer design files

The KiCad project lives in the Angelo13C/3d-printer repository on GitHub; these links point at the commit this page was built from.

3d printer: common questions

What microcontroller does the 3d printer use?

The 3d printer is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the 3d printer PCB?

The 3d printer measures 102 × 102 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the 3d printer?

91 components, from 51 distinct parts. The full bill of materials is listed on this page.

Where can I download the 3d printer design files?

From the Angelo13C/3d-printer repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 3d printer design in my own project?

The repository has no license, so all rights stay with Angelo13C. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the 3d printer without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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