Motor Joint Splitter V3

biomimetics·MRIRobot_PCB·Motor_Joint_Splitter_V3/Motor_Joint_Splitter_V3.kicad_pcb

About the Motor Joint Splitter V3 PCB

Motor Joint Splitter V3 is an open source PCB design by biomimetics, published on GitHub. It is a 2-layer board measuring 50 × 50 mm, with 24 components from 14 distinct parts.

Other key parts include the 74ACT244MTCX. By type, the board carries 6 resistors, 5 connectors, 4 diodes, 4 capacitors, 3 test points and 1 IC.

It belongs with the robotics & motion designs in this gallery, and the repository also holds 2 earlier revisions of it.

From the project

PC boards for MRI robogt control, specifically for STM32 motherboard

MainPCB (holds STM32 Nucleo 446RE and FPGA for encoder reading)

PowerPCB (switches for enabling individual ultrasonic motors, +24V in connector, master power switch))

MotorJoint_Splitter (mounted on robot arm)

* Motor Joint Splitter V3 (mounted next to each actuator)

Motorreroute (at motor controller. Splits Tekcelo control signal to use ethernet for a pair of encoders, and 3 wire sin/cos/gnd cable for 250V )

Motor Joint Splitter V3, from the project README — From the project README

Main components on the Motor Joint Splitter V3

74ACT244MTCX

Motor Joint Splitter V3 bill of materials (BOM)

24 components, 14 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	74ACT244MTCX	line_driver_SOP65P640X120-20N	U2
1	Conn_01x05	PinHeader_1x05_P2.54mm_Horizontal	J1
1	26605030	CONN_SDA-41792_M450_03_MOL	J2
1	motor_connector_292206-8	TE_292206-8	J4
1	ETHERNET_54602-908LF ethernet_54602-908LF	AMPHENOL_54602-908LF	J7
1	CONN_01X05 Conn_01x05	PinHeader_1x05_P2.54mm_Horizontal	J9
1	Jumper_2_Open	TestPoint_2Pads_Pitch5.08mm_Drill1.3mm	JP1
3	TestPoint_Probe	TestPoint_Bridge_Pitch2.54mm_Drill1.0mm	TP1, TP2, TP3
1	H5VHD3BC hongjiacheng	D_SOD-323	D4
3	BAT54SDW	SOT-363_SC-70-6	D5, D6, D7
1	1uF Samsung Electro-Mechanics	C_0402	C1
1	0.1 uF	C_0603	C2
2	1UF 1uF Samsung Electro-Mechanics	C_0402	C3, C4
6	120Ω UNI-ROYAL(Uniroyal Elec)	R_0805	R13, R14, R15, R16, R17, R19

Motor Joint Splitter V3 design files

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

Motor Joint Splitter V3: common questions

How big is the Motor Joint Splitter V3 PCB?

The Motor Joint Splitter V3 measures 50 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Motor Joint Splitter V3?

24 components, from 14 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 Motor Joint Splitter V3 design files?

From the biomimetics/MRIRobot_PCB repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.