2 layers135 × 35 mm
Printhead pcb
Fiberprinter/fiberprinter-electronics
Fiberelectronics Control every pulse, master every micron
78 parts4
2 layers99 × 99 mm
2nd mainboard pcb
Fiberprinter/fiberprinter-electronics4Fiberelectronics Control every pulse, master every micron
- Size
- 99 × 99 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 132
- Nets
- 107
- Pads
- 478
- Tracks, vias
- 1,531, 189
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 8 Apr 2024
- Updated
- 16 Oct 2025
Overview
2nd mainboard pcb is an open-source printed circuit board by Fiberprinter, from the Fiberprinter/fiberprinter-electronics repository on GitHub. It is a 2-layer board of 99 × 99 mm with 132 parts on 107 nets, routed with 1,531 tracks and 189 vias.
It is built around the ATMEGA328PB-AU, FT232RL and TPM16050-S6TR, with the TPS565208DDC, TPS56837HRPAR and MPU-6050 among its other parts. Its parts include 38 capacitors, 24 connectors, 21 resistors, 11 ICs and 7 diodes. It belongs with the computers and single-board computers boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
10
ATMEGA328PB-AU
TQFP-32(7x7)-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 27 2KB 32KB 8 Bit AVR Built-in FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、External pin reset (NRST)、Built-in general-purpose timer、Programmable watchdog、Touch function TQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
FT232RL
SSOP-28-208mil-40℃~+85℃ 3.3V~5.25V、4V~5.25V USB 2.0 USB to UART SSOP-28-208mil USB Converters ROHSFTDIUSB Converters
TPM16050-S6TR
SOT-23-6-40℃~+125℃ 2.9V~17V 850mΩ Input under-voltage protection、Overcurrent Protection、Short-Circuit Protection SOT-23-6 Relay / Coil Drivers ROHS3PEAKRelay / Coil DriversTPS565208DDC
TSOT-23-6-40℃~+125℃@(TJ) 1 4.5V~17V 500kHz 5A 760mV~7V Adjustable Buck Buck Built-in Yes TSOT-23-6 DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersTPS56837HRPAR
VQFN-HR-10(3x3)-40℃~+150℃@(TJ) 1 4.5V~28V 45uA 4V~22V 500kHz 8A Adjustable Buck Buck Built-in Yes VQFN-HR-10(3x3) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
MPU-6050
QFN-24-EP(4x4)-40℃~+85℃ 16bit 1KB 2.375V~3.46V 5uA Accelerometer Gyroscope I2C X,Y,Z X,Y,Z ±16g ±2000dps QFN-24-EP(4x4) Accelerometers ROHSTDK InvenSenseAccelerometers
PTS647SM38SMTR2LFS
SMD,4.5x4.5mm-40℃~+85℃ 1.8N 100,000 cycles 12V 3.8mm 4.5mm 4.5mm 50mA Gull Wing IP40 Round Button SPST-NO Surface Mount,Vertical SMD,4.5x4.5mm Tactile Switches ROHSC&KTactile Switches
SQJ409EP-T1_GE3
PowerPAK-SO-8L-55℃~+175℃ 1 P-Channel 11nF 2.5V 260nC@10V 40V 60A 620pF 68W 700pF 7mΩ@10V P-Channel PowerPAK-SO-8L MOSFETs ROHSVishay IntertechnologyMOSFETs
ECS-160-18-4X-CKM
HC-49S-20℃~+70℃ 16MHz 18pF 40Ω ±10ppm ±10ppm HC-49S Crystals ROHSECSCrystals
PJ-082BH
插件-25℃~+85℃ 10A 2.5mm 24V 6.5mm DC Power Jack 插件 DC Power Connectors ROHSCUIDC Power Connectors
README
README.md
Fiberelectronics
Control every pulse, master every micron
Fiberprinter Electronics
Dieses Repository enthält die Elektronikentwicklung für den faserverlegenden 3D-Drucker, der im Rahmen einer Diplomarbeit an der HTBLA Kaindorf entwickelt wird. Die Elektronik umfasst sowohl die Steuerung der Druckkopffunktionen als auch die Anbindung an das Hauptsystem mittels eines Raspberry Pi mit Klipper-Firmware.
📌 Projektübersicht
Das Ziel dieses Projekts ist die Entwicklung einer modularen und effizienten Steuerung für den Druckkopf, die über eine eigenentwickelte Platine mit einem ATmega328 realisiert wird. Diese übernimmt spezifische Aufgaben, die über das Hauptsystem des Druckers nicht direkt gesteuert werden.
⚙️ Hauptkomponenten
1️⃣ Steuerungshardware
- Raspberry Pi mit Klipper-Firmware zur übergeordneten Steuerung
- Eigenes Mainboard mit ATmega328 zur Ansteuerung folgender Komponenten:
- Lüfter
- BL Touch (Autoleveling-Sensor)
- Servo
- Schrittmotor
- Temperatursensoren
- Breakout-Board für den ATmega2560, das Test- und Messpunkte sowie einen Bootloader enthält
- FT232RL als USB-to-Serial-Adapter für die Kommunikation mit dem ATmega2560
- Reset-Button zur einfachen Rücksetzung des Systems
2️⃣ Firmware & Kommunikation
- Der ATmega328 wird von der Klipper-Firmware auf dem Raspberry Pi über USB angesprochen
- Kommunikation erfolgt über serielles Protokoll
- Entwicklung einer angepassten Firmware für den ATmega328, um die spezifischen Druckkopf-Funktionen auszuführen
3️⃣ Software
- Python-Skript zur Integration der Steuerung in Klipper
- Implementierung eines Protokolls zur Steuerung der Hardware aus Klipper heraus
- Zusammenarbeit mit der Slicing-Software, um die gezielte Faserverlegung zu ermöglichen
🛠️ Entwicklungsteam
- Jan Traußnigg – Elektronikdesign & Firmware
- Nico Hütter – Konstruktion, Aufbau & Testung
- Elias Gottsbacher – Slicing-Software & Software-Integration
📜 Lizenz
Dieses Projekt steht unter der MIT-Lizenz. Weitere Details sind in der Datei LICENSE zu finden.
Parts
132| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 100nF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C1, C6, C7, C10, C13, C16, C17, C20, C23, C26, C27, C29, C35, C37, C38 |
| 8 | 10µF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C4, C11, C12, C15, C24, C34, C36 |
| 4 | 0.1µF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C30, C31, C32, C33 |
| 4 | 330 | Resistor_SMD:R_0402_1005Metric | R12, R13, R14, R15 |
| 4 | 4k7 | Resistor_SMD:R_0402_1005Metric | R22, R23, R24, R25 |
| 4 | MountHole | MountingHole:MountingHole_2.7mm_M2.5_ISO7380_Pad_TopBottom | H9, H10, H11, H12 |
| 4 | MountHole | Imported_Component_Footprints:MountingHole_2.7mm_M2.5_ISO7380_Pad_TopBottom_7mm | H1, H2, H3, H4 |
| 4 | MountHole | Imported_Component_Footprints:MountingHole_2.7mm_M2.5_ISO7380_Pad_TopBottom_111mm | H5, H6, H7, H8 |
| 4 | YELLOW | LED_SMD:LED_0805_2012Metric | D3, D4, D5, D6 |
| 3 | 10k | Resistor_SMD:R_0402_1005Metric | R8, R11, R17 |
| 3 | 4.7uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C19, C25, C28 |
| 3 | T2 | Imported_Component_Footprints:665102131822 | J19, J20, J21 |
| 2 | 18pF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C21, C22 |
| 2 | 22nF | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C2, C9 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R9, R10 |
| 2 | Fan_12/5V_Regelung | Imported_Component_Footprints:FTS_103_01_F_S | J2, J3 |
| 2 | I_Sense_5V | TestPoint:TestPoint_2Pads_Pitch2.54mm_Drill0.8mm | TP22, TP23 |
| 2 | RJK0456DPB-00-J5 | Imported_Component_Footprints:RJK0456DPB_00_J5 | U8, U9 |
| 2 | T3 | Imported_Component_Footprints:665102131822 | J11, J22 |
| 2 | WE-TVSP_DO-214AA_600W_BI | Imported_Component_Footprints:824521241 | D1, D2 |
| 1 | 10 | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 10µF | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C5 |
| 1 | 12V_Test | TestPoint:TestPoint_Pad_D3.0mm | TP3 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R16 |
| 1 | 1k58 | Resistor_SMD:R_0402_1005Metric | R4 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C18 |
| 1 | 22µF | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C14 |
| 1 | 3.3µH | Imported_Component_Footprints:IHLP2525CZER3R3M11 | L2 |
| 1 | 30.1k | Resistor_SMD:R_0402_1005Metric | R5 |
| 1 | 30k | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 4.7µH | Imported_Component_Footprints:SPM10040T_4R7M_HZ | L1 |
| 1 | 47µF | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C8 |
| 1 | 54.9k | Resistor_SMD:R_0402_1005Metric | R7 |
| 1 | 5V_POW_Test | TestPoint:TestPoint_Pad_D3.0mm | TP7 |
| 1 | 5V_USBC_Test | TestPoint:TestPoint_Pad_D3.0mm | TP6 |
| 1 | ADC0 | TestPoint:TestPoint_Pad_D2.0mm | TP21 |
| 1 | ADC1 | TestPoint:TestPoint_Pad_D2.0mm | TP20 |
| 1 | ADC2 | TestPoint:TestPoint_Pad_D2.0mm | TP18 |
| 1 | ADC3 | TestPoint:TestPoint_Pad_D2.0mm | TP19 |
| 1 | ATmega328PB-A | Package_QFP:TQFP-32_7x7mm_P0.8mm | U10 |
| 1 | Conn_01x04_Socket | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J23 |
| 1 | ECS-160-18-4X-CKM | Imported_Component_Footprints:XTAL_ECS-160-18-4X-CKM | Y1 |
| 1 | FAN0 | Imported_Component_Footprints:CONN_S2B-XH-A-1LFSN_JST | J4 |
| 1 | FAN1 | Imported_Component_Footprints:CONN_S2B-XH-A-1LFSN_JST | J5 |
| 1 | FAN2 | Imported_Component_Footprints:CONN_S2B-XH-A-1LFSN_JST | J6 |
| 1 | FAN3 | Imported_Component_Footprints:CONN_S2B-XH-A-1LFSN_JST | J14 |
| 1 | FT232RL | Package_SO:SSOP-28_5.3x10.2mm_P0.65mm | U5 |
| 1 | GND_Test | TestPoint:TestPoint_Pad_D3.0mm | TP2 |
| 1 | GREEN | LED_SMD:LED_0805_2012Metric | D7 |
| 1 | ISP | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J16 |
| 1 | I_Sense_12V | TestPoint:TestPoint_2Pads_Pitch2.54mm_Drill0.8mm | TP25 |
| 1 | LOGO | Imported_Component_Footprints:Logo_FiberPrinter_V2 | G*** |
| 1 | LOGO | Imported_Component_Footprints:gesamtbaugruppev3 | G*** |
| 1 | MPU-6050 | Sensor_Motion:InvenSense_QFN-24_4x4mm_P0.5mm | U12 |
| 1 | Microstepping | Imported_Component_Footprints:FTSH-103-01-L-DH | J9 |
| 1 | PJ-082BH | Imported_Component_Footprints:CUI_PJ-082BH | J1 |
| 1 | PTS647SM38SMTR2LFS | Imported_Component_Footprints:SW_PTS647SM38SMTR2LFS_CNK | U6 |
| 1 | Pololu_Breakout_DRV8825 | Imported_Component_Footprints:drv8825 | A1 |
| 1 | Quartz | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J18 |
| 1 | Quartz_1 | TestPoint:TestPoint_Loop_D3.80mm_Drill2.5mm | TP8 |
| 1 | Quartz_2 | TestPoint:TestPoint_Loop_D3.80mm_Drill2.5mm | TP9 |
| 1 | SQJ409EP-T1_GE3 | Imported_Component_Footprints:SQJ409EP_T1_GE3 | U1 |
| 1 | SZ1SMB5927BT3G | Imported_Component_Footprints:SZ1SMB5927BT3G | U2 |
| 1 | Servo Motor BL Touch | Imported_Component_Footprints:JST_XH_S3B-XH-A_1x03_P2.50mm_Horizontal | J10 |
| 1 | Servo Motor SM | Imported_Component_Footprints:JST_XH_S3B-XH-A_1x03_P2.50mm_Horizontal | J8 |
| 1 | Steckverbinder_Female_Leistung | Imported_Component_Footprints:SAMTEC_HLE-107-02-L-DV | J13 |
| 1 | Steckverbinder_Female_Motoren | Imported_Component_Footprints:SAMTEC_HLE-107-02-L-DV | J15 |
| 1 | Steckverbinder_Male_Fans | Imported_Component_Footprints:SAMTEC_TSM-107-04-L-DV | J12 |
| 1 | Steckverbinder_Male_Leistung | Imported_Component_Footprints:SAMTEC_HW-07-08-L-D-250-SM | J24 |
| 1 | Stepper Motor | Imported_Component_Footprints:JST_S4B-XH-A-1 | J7 |
| 1 | TPM16050-S6TR | Imported_Component_Footprints:TPM16050_S6TR | U7 |
| 1 | TPS565208 | Package_TO_SOT_SMD:SOT-23-6 | U4 |
| 1 | TPS56837HRPAR | Imported_Component_Footprints:TPS56837HRPAR | U3 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_GCT_USB4085 | P1 |
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Questions
How big is the 2nd mainboard pcb PCB?
It measures 99 × 99 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 2nd mainboard pcb use?
132 parts, built around the ATMEGA328PB-AU, FT232RL, TPM16050-S6TR and TPS565208DDC. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the 2nd mainboard pcb KiCad files?
From the Fiberprinter/fiberprinter-electronics repository on GitHub, at the commit this page was made from: the board is 2nd-mainboard-pcb/2nd-mainboard-pcb.kicad_pcb and its schematic 2nd-mainboard-pcb/2nd-mainboard-pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the 2nd mainboard pcb design in my own project?
Its repository states no licence, so its author keeps all rights: ask Fiberprinter before reusing the design.