ABCDEFGHIJKLMNOPQRSTUVWXYZ
1
2
Bill of Materials for LongBoard (Rev 1.4.2/1.4.3)
We made the LongBoard design open-source so you could reproduce it via PCB milling, etching, or an online service. We also strive to use components that are easy to source; we use LCSC but other options include Digikey, Arrow, and likely other manufacturers local to you.
3
Last updated:Jul 20, 2021You can find additional documentation regarding the LongBoard here: https://resources.sienci.com/view/lm-longboard-documentation/
4
https://resources.sienci.com/view/lm-open-source-and-modifications/
5
**Please note that all documentation is prepared with care but there's no guarantee that all provided quantities or information is exact or correct.**
6
7
PartNotesQuantityLocation / DesignationManufacturer Part # or SKUExample link for purchase
8
LongBoard Rev 1.4.2/1.4.3 PCB600/1000 produced, 2.4mm thick, 107.7x269.28mm, FR4 TG130, black, HASL finish. Mounting holes make nearly centered rectangle of 96.03x258.15mm1BoardMust be manually reproduced via the provided PCB schematics
9
10
PCB SMD Nut (M4, 5mm standoff)Increase ease of assembly of board into enclosure by mounting via PCB nuts rather than traditional, separated nuts4M1, M2, M3, M4SMTSO-40-50-M-T-Jhttps://www.alibaba.com/product-detail/PCB-Standoff-Manufacturer-s-direct-supply_60795106729.html
11
Terminal Block connector (2-pin 1-level, 5.08mm)Plug that carries DC power to the board1P15WJ2EDGRC-5.08-2Phttps://lcsc.com/product-detail/Pluggable-System-Terminal-Block_Ningbo-Kangnex-Elec-WJ2EDGRC-5-08-2P_C3697.html
12
Terminal Block connector (2-pin 1-level, 5.08mm, straight)Plug that routes positive DC power through the e-stop switch before connecting it to the rest of the board1SW4WJ2EDGV-5.08-2Phttps://lcsc.com/product-detail/Pluggable-System-Terminal-Block_Ningbo-Kangnex-Elec-WJ2EDGV-5-08-2P_C8461.html
13
Diode (SMD, schottky barrier)Part of input power management1D1SVM1550UB_R2_00001https://lcsc.com/product-detail/Schottky-Barrier-Diodes-SBD_SVM1550UB_C138358.html
14
LED (SMD, orange/617~626nm)Top-facing LED acts as indicator that board is receiving power1D92SA0603V32F0SW001https://lcsc.com/product-detail/Light-Emitting-Diodes-LED_Brightek-Optoelectronics-2SA0603V32F0SW001_C233190.html
15
Capacitor (SMD, 1uF)Work together to suppress arcing on the 24V board power input when the e-stop is used to toggle power on and off1C101206B105K101NThttps://lcsc.com/product-detail/Multilayer-Ceramic-Capacitors-MLCC-SMD-SMT_FH-Guangdong-Fenghua-Advanced-Tech-1206B105K101NT_C91151.html
16
Resistor (SMD, 162Ω)1R11CR1210F162RP05Zhttps://lcsc.com/product-detail/Chip-Resistor-Surface-Mount_Ever-Ohms-Tech-CR1210F162RP05_C174452.html
17
Transient Voltage Suppressor (bi-directional)1D11SMBJ58CAhttps://lcsc.com/product-detail/Others_SEMIWARE-SMBJ58CA_C294920.html
18
Voltage Regulator (linear)Part of the voltage regulation circuitry. Designed to receive 24V as input and supply 12V as output to a maximum of ~1A via the fan plug.1U1LM317TGhttps://lcsc.com/product-detail/Voltage-References_ON-Semicon_LM317TG_ON-Semicon-ON-LM317TG_C89320.html
19
Capacitor (SMD, 100nF)Part of the voltage regulation circuitry. Also for noise filtering on the Play/Pause/Stop buttons, limits switches, and probe lines. R10 manages current for inline LED.9C1, C2, C3, C4, C5, C6, C7, C8, C90603F104M500NThttps://lcsc.com/product-detail/Multilayer-Ceramic-Capacitors-MLCC-SMD-SMT_100nF-104-20-50V_C42998.html
20
Resistor (SMD, 10kΩ)8R1, R3, R4, R5, R6, R7, R8, R9RC0603FR-0710KLhttps://lcsc.com/product-detail/Chip-Resistor-Surface-Mount_YAGEO-RC0603FR-0710KL_C98220.html
21
Resistor (SMD, 1.15kΩ)2R2, R100603WAF1151T5Ehttps://lcsc.com/product-detail/Chip-Resistor-Surface-Mount_Uniroyal-Elec-0603WAF1151T5E_C22834.html
22
Diode (SMD, general purpose)Run inline for all board 5V IO (limits, SpinPWM, SpinDir, Probe, and Coolant) to protect against incorrect wiring9D2, D3, D4, D5, D6, D7, D8, D10, D12GS1002FL_R1_00001https://lcsc.com/product-detail/Others_PANJIT-International-GS1002FL_C353853.html
23
Tactile Switch (SPST)Top-mounted Play/Pause/Stop buttons for manual machine control. Common tactile switch with extended switch height.3SW1, SW2, SW3TC-1103-C-Uhttps://lcsc.com/product-detail/Tactile-Switches_XKB-Enterprise-TC-1103-C-U_C318968.html
24
Pin Header (1*10, 2.54mm, male)For connection to Arduino Uno board1A1C57369https://lcsc.com/product-detail/Pin-Header-Female-Header_Boom-Precision-Elec-Headers-Pins-2-54mm-1-10P_C57369.html
25
Pin Header (1*8, 2.54mm, male)2A1Z-211-0811-0021-001https://lcsc.com/product-detail/Pin-Header-Female-Header_Nextronics-Engineering-Z-211-0811-0021-001_C190820.html
26
Pin Header (1*6, 2.54mm, male)1A1A2541WV-6Phttps://lcsc.com/product-detail/Pin-Header-Female-Header_Changjiang-Connectors-A2541WV-6P_C225481.html
27
XH connector (4-pin 1-level, 2.5mm)Connect to the limit sensing circuitry for homing or hardstops. The XH connector is very common so it makes for easy connection of a variety of plug-in limit sensors. 3P12, P13, P14S4B-XH-A-1(LF)(SN)https://lcsc.com/product-detail/Wire-To-Board-Wire-To-Wire-Connector_JST-Sales-America_S4B-XH-A-1-LF-SN_JST-Sales-America-S4B-XH-A-1-LF-SN_C163037.html
28
Terminal Block connector (5-pin 1-level, 3.81mm)Alternative connection point for limit sensing sensors1P2WJ15EDGRC-3.81-5Phttps://lcsc.com/product-detail/Pluggable-System-Terminal-Block_Ningbo-Kangnex-Elec-WJ15EDGRC-3-81-5P_C8395.html
29
Terminal Block connector (4-pin 1-level, 5.08mm)For connection to Stepper Motors4P4, P5, P6, P7WJ2EDGRC-5.08-4Phttps://lcsc.com/product-detail/Pluggable-System-Terminal-Block_Ningbo-Kangnex-Elec-WJ2EDGRC-5-08-4P_C8446.html
30
Terminal Block connector (2-pin 1-level, 3.81mm)Connector used for all other IO on the board, including 12V fan line, spindle control, coolant control, and probe input5P1, P3, P16, P17, P18WJ15EDGRC-3.81-2Phttps://lcsc.com/product-detail/Pluggable-System-Terminal-Block_Ningbo-Kangnex-Elec-WJ15EDGRC-3-81-2P_C8387.html
31
32
TB6600 Stepper Driver BoardBuilt around the TB6600HG PWM Chopper-Type bipolar Stepping Motor Driver IC from Toshiba, these board modules are ubiquitous, open-source, and provide an effective means for stepper motor control at a hobby-level. There is one driver allocated per motor: one for X, two for Y, and one for Z. The datasheet for the driver chip can be found here: https://toshiba.semicon-storage.com/us/semiconductor/product/motor-driver-ics/stepping-motor-driver-ics/detail.TB6600HG.html4Driverhttps://www.amazon.ca/KOOBOOK-TB6600HG-Stepper-Controller-Replace/dp/B07S9QBCBS/
33
Arduino UnoAn open-source microcontroller board based on the Microchip ATmega328P microcontroller and developed by Arduino.cc This board performs all of the processing necessary to convert incoming gcode into stepper motor movements with other CNC functionality built-in when flashed with the GRBL firmware (https://github.com/gnea/grbl). 1Unohttps://store.arduino.cc/usa/arduino-uno-rev3
34
35
Terminal Block plug (5-pin 1-level, 3.81mm)Plugs into the alternative connector for limit sensing sensors. Normally found already plugged into the LongBoard.1PlugsWJ15EDGK-3.81-5Phttps://lcsc.com/product-detail/Pluggable-System-Terminal-Block_Ningbo-Kangnex-Elec-WJ15EDGK-3-81-5P_C3804.html
36
Terminal Block plug (2-pin 1-level, 3.81mm)Plugs into all remaining LongBoard IO. Normally found already plugged into the LongBoard's matching ports.5PlugsWJ15EDGK-3.81-2Phttps://lcsc.com/product-detail/Pluggable-System-Terminal-Block_Ningbo-Kangnex-Elec-WJ15EDGK-3-81-2P_C8466.html
37
38
39
LongBoard External Supporting Components
40
Terminal Block plug (4-pin 1-level, 5.08mm)Plugs for the four stepper motors. Already come pre-wired onto the wiring harnesses for the LongMill (one for each motor).4PlugsWJ2EDGK-5.08-4Phttps://lcsc.com/product-detail/Pluggable-System-Terminal-Block_Ningbo-Kangnex-Elec-WJ2EDGK-5-08-4P-14-00A_C71372.html
41
Terminal Block plug (2-pin 1-level, 5.08mm)Plugs into the DC power connector and e-stop connector on the Longboard and normally comes pre-wired onto the DC side of the LongMill power supply and on the end of the e-stop wiring harness2PlugsWJ2EDGK-5.08-2Phttps://lcsc.com/product-detail/Pluggable-System-Terminal-Block_Ningbo-Kangnex-Elec-WJ2EDGK-5-08-2P-14-00A_C71370.html
42
43
24V 10A power supplyFully enclosed power brick with LED indicator light. Accepts 110-240V and 50-60hz.1Power Brickhttps://www.amazon.ca/LED-Power-Supply-Adapter-24V/dp/B07K9KTMFT
44
AC cableWe provide this as a US / North American plug1Power Brickhttps://www.amazon.ca/LIANSUM-Samsung-Toshiba-ViewSonic-Computer/dp/B08V8QRNQ9/
45
E-stop switch & boxPlugs into the top-facing plug on the LongBoard to act as its power switch and also to terminate all power to the CNC in case of an emergency. Has holes for mounting to a variety of surfaces.1E-stophttps://www.amazon.ca/Baomain-Emergency-Button-Weatherproof-Pushbutton/dp/B00NTT91Y0/
46
USB type B cable1m long, shielded & ferrite bead choke cable for communication from a separate computing device to the on-board Arduino1USB Cablehttps://www.amazon.ca/Hi-Speed-Cable-Ferrite-Chokes-3-Ft/dp/B008VOPCGY
47
48
49
# Unique Parts: 32
50
Total: 82
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100