2 layers260 × 80 mm Pancake machine, the printed circuit board in 3D

Pancake machine

Size: 260 × 80 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 53
Nets: 63
Pads: 248
Tracks, vias: 637, 72
Pours: 2
Routed: Yes
KiCad: KiCad 8.0 (file 20240108)
Created: 5 Mar 2024
Updated: 5 Mar 2024

Overview

Pancake machine is an open-source printed circuit board by bitbyt3r, from the bitbyt3r/pancake_machine repository on GitHub. It is a 2-layer board of 260 × 80 mm with 53 parts on 63 nets, routed with 637 tracks and 72 vias.

It is built around the MAX31855KASA+T, BSS214NW-TP and TC1. Its parts include 18 connectors, 14 resistors, 6 capacitors, 5 transistors and 4 ICs. It belongs with the STM32 boards of this library.

Main components

Parts

Qty	Value	Footprint	References
5	100	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R5, R8, R10, R13, R14
5	100k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R6, R7, R9, R11, R12
5	BSS214NW	Package_TO_SOT_SMD:SOT-323_SC-70	Q1, Q2, Q3, Q4, Q5
4	MountingHole_Pad	MountingHole:MountingHole_5mm_Pad_Via	H2, H3, H4, H5
2	0.1uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1, C2
2	10uF	Capacitor_Tantalum_SMD:CP_EIA-3216-10_Kemet-I_Pad1.58x1.35mm_HandSolder	C3, C4
2	20pF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C9, C10
2	5k1	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R3, R4
2	MAX31855KASA	Package_SO:SOIC-8_3.9x4.9mm_P1.27mm	U1, U2
1	12v Power	Connector:JWT_A3963_1x02_P3.96mm_Vertical	J1
1	161	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1
1	16MHz	Crystal:Crystal_SMD_HC49-SD_HandSoldering	Y1
1	1k5	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R2
1	Conn_01x02_Socket	Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical	J17
1	Conn_ARM_SWD_TagConnect_TC2030	Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical	J16
1	FAN1	Connector_Molex:Molex_SPOX_5267-03A_1x03_P2.50mm_Vertical	J9
1	FAN2	Connector_Molex:Molex_SPOX_5267-03A_1x03_P2.50mm_Vertical	J10
1	HOLE	Connector_Molex:Molex_SPOX_5267-04A_1x04_P2.50mm_Vertical	J14
1	LT1963AxST-3.3	Package_TO_SOT_SMD:SOT-223-3_TabPin2	U4
1	PSU2	Connector_Molex:Molex_SPOX_5267-02A_1x02_P2.50mm_Vertical	J8
1	Pololu_Breakout_A4988	Module:Pololu_Breakout-16_15.2x20.3mm	A1
1	RY1	Connector_Molex:Molex_SPOX_5267-02A_1x02_P2.50mm_Vertical	J7
1	SIZE_SENSOR	Connector_Molex:Molex_SPOX_5267-03A_1x03_P2.50mm_Vertical	J11
1	SSR	Connector_Molex:Molex_SPOX_5267-04A_1x04_P2.50mm_Vertical	J13
1	STM32F103CBTx	Package_QFP:LQFP-48_7x7mm_P0.5mm	U3
1	STREAM_SENSOR	Connector_Molex:Molex_SPOX_5267-03A_1x03_P2.50mm_Vertical	J12
1	SW1	Connector_Molex:Molex_SPOX_5267-02A_1x02_P2.50mm_Vertical	J2
1	SW2	Connector_Molex:Molex_SPOX_5267-02A_1x02_P2.50mm_Vertical	J3
1	SW3	Connector_Molex:Molex_SPOX_5267-02A_1x02_P2.50mm_Vertical	J4
1	Stepper	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J15
1	TC1	Connector_Molex:Molex_SPOX_5267-02A_1x02_P2.50mm_Vertical	J5
1	TC2	Connector_Molex:Molex_SPOX_5267-02A_1x02_P2.50mm_Vertical	J6
1	USB_C_Receptacle_USB2.0_14P	Connector_USB:USB_C_Receptacle_GCT_USB4085	J18

Questions

How big is the Pancake machine PCB?

It measures 260 × 80 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Pancake machine use?

53 parts, built around the MAX31855KASA+T, BSS214NW-TP and TC1. 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 Pancake machine KiCad files?

From the bitbyt3r/pancake_machine repository on GitHub, at the commit this page was made from: the board is pancake_machine.kicad_pcb and its schematic pancake_machine.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Pancake machine design in my own project?

Its repository states no licence, so its author keeps all rights: ask bitbyt3r before reusing the design.

Category and platform

STM32

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/bitbyt3r-pancake-machine" title="Pancake machine in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/bitbyt3r-pancake-machine.jpg" alt="Pancake machine" width="1200" height="900">

A picture that opens the board, for a README

[![Pancake machine](https://pcbkit.io/embed/boards/bitbyt3r-pancake-machine.jpg?size=s)](https://pcbkit.io/boards/bitbyt3r-pancake-machine)

Source

Repository: bitbyt3r/pancake_machine
Board file: pancake_machine.kicad_pcb
Commit: 67f4cf5
Licence: Not stated

Similar boards

2 layers72 × 72 mm
ReflowESP
Weissnix4711/ReflowESP
ESP32 powered reflow controller
64 parts3
2 layers92 × 92 mm
Preheater
hetii/preheater
The controller supports multiple heating zones, thermocouple monitoring, fan control, and a modern web-based interface for managing the entire process directly from a browser.
158 parts
2 layers138 × 90.6 mm
Corne chocolate
JonMuller/gerbers
Place to store keyboard gerbers
83 parts136MIT
4 layers99 × 99 mm
PrntrBoardV1
ghent360/PrntrBoard
3D Printer controller board using STM32 NUCLEO-F446 kit TMC2130/2660/2209 drivers
238 parts24
2 layers31 × 26.4 mm
ReflowOvenControl v0
Roger-random/tux_lab_thermoformer
Tux-Lab Thermoforming Machine project
30 parts3
2 layers38.8 × 49.6 mm
HB UNI Sen TEMP MAX6675
der-pw/HB-UNI-Sen-TEMP-MAX6675-PCB

46 parts
4 layers65 × 30 mm
Thermocouple hat
hwpaige/gauge
A twin cylinder head temperature (CHT) gauge running on a Banana Pi M4 Zero, displayed on a 1.3" round SPI LCD. Designed to look like a dark-themed aircraft avionics instrument — two filled-arc gauges side by side, one…
53 parts
4 layers42.3 × 60.2 mm
MicroSD Switch Reader
will127534/microSD-Switcher-Reader
A simple USB3.0 uSD card reader with a SD card switch for SBCs
81 parts25MIT