Bill of Material

Quadruped I

Clickable browser version for ordering and build planning.

Revision 2026-04-3067 rowsOpen 3D model listing
Rows67
Total quantity194
Updated2026-07-08

Leg Linkage Mechanism 11 items

QtyPartBuy / source linkNotes
×12Servo MotorsAliExpress Amazon / Geniuslink180 degrees, 35kg (Approx 49.5x20,2x40mm)
1Raspberry Pi 4 Model BAliExpress Amazon / Geniuslink8gb Ram
1LiPo BatteryAliExpress Amazon / Geniuslink4000mAh 4S 45~90C Lipo Pack w/XT-90 (You can change to the XT-90 connect later)
1IMUAliExpress Amazon / GeniuslinkIntegrated Measuring Unit
1Raspberry Pi Breakout BoardAliExpress Amazon / GeniuslinkMade by Dfrobot
×2FanAliExpress Amazon / Geniuslink
1Servo Driver PCA9685AliExpress Amazon / GeniuslinkTo control servo motors, via I2C interface
1Arduino NanoAliExpress Amazon / GeniuslinkFor IMU, Battery sensing, LCD screen
1DC to DC (Buck) converter 20AAliExpress Amazon / GeniuslinkAdjustable, set to ~7V in Dingo
1Power Distribution PCBOrder PCB HEREMake sure to chose PCB + Assembly
1Orange Acrylic—Adding STEP + DXF in case you cant print this.

Body Construction 4 items

QtyPartBuy / source linkNotes
1LCD ScreenAliExpress Amazon / Geniuslink1.47 inch
1DC to DC (buck) converter 3AAliExpress Amazon / GeniuslinkFor fans
1Emergency Stop SwitchAliExpress Amazon / Geniuslink3a at 12-220V rated
132GB MicroSD cardAliExpress Amazon / Geniuslink32GB is maximum Pi supports

Computing 7 items

QtyPartBuy / source linkNotes
×4BearingAliExpress Amazon / Geniuslink6705-2RS 25X32X4
1Thrust Bearings (legs)AliExpress Amazon / GeniuslinkF4-10M 4x10x4mm
×20BearingAliExpress Amazon / Geniuslink684ZZ Mini Deep Groove Ball Bearing 4x9x4mm
×4Servo hornsAliExpress Amazon / GeniuslinkRC Car Steering Servo Horn Arm 25T Teeth Long
1DC to DC (Buck) converter 4AAliExpress Amazon / GeniuslinkFor all components except servos and fans
1RasbPi Cooling SystemAliExpress Amazon / Geniuslink
1Arduino Nano Breakout BoardAliExpress Amazon / Geniuslink

Power Supply and Management 4 items

QtyPartBuy / source linkNotes
×8Terminal BlocksAliExpress Amazon / Geniuslink1935776
×4HeatsinksAliExpress Amazon / Geniuslink6mm, black. Cut in half for each leg motor
1GPIO CableAliExpress Amazon / GeniuslinkTo connect Pi to its breakout board
×10Servo DiscsAliExpress Amazon / Geniuslinkwith screws.

PCB Parts 10 items

QtyPartBuy / source linkNotes
×8MagnetsAliExpress Amazon / GeniuslinkUsed to hold fans in place
×4Rod ends,LongAliExpress Amazon / GeniuslinkS 3mm L30mm M3
×4Rod longAliExpress90mm long (cut if needed)
×4Rod ends ShortAliExpress Amazon / GeniuslinkN 3mm L20mm M3
×2Rod shortAliExpress16mm long (cut if needed)
1Logic Level ConverterAliExpress Amazon / GeniuslinkFor adjusting voltage between the pi and the nano
1M3 threaded insertsAliExpress Amazon / GeniuslinkPack of 100, M3xD4.6xL4.0
1XT60H ConnectorAliExpress Amazon / GeniuslinkTo connect LiPo to the robot
1On/off SwitchAliExpress Amazon / Geniuslink20A at 14VDC rated
1SpringAliExpress Amazon / GeniuslinkFor battery latch mechanism. 35mm long x 7mm OD

Electrical 9 items

QtyPartBuy / source linkNotes
×12Male Connector (for peripherals)AliExpress Amazon / GeniuslinkB2B-PH-K-S(LF)(SN)
1Digital VoltmeterAliExpress Amazon / GeniuslinkDC 2.5-30V, used to measure battery voltage
×25Socket for ConnectorsAliExpress Amazon / GeniuslinkSPH-002T-P0.5S
×5Threaded rods, longAliExpress Amazon / GeniuslinkM3 x 110mm
×12Female Connector (for peripherals)AliExpress Amazon / GeniuslinkPHR-2
1CapacitorAliExpress Amazon / Geniuslink2200uF 16VDC Electrolytic RB Capacitor ,For servo board
×5Threaded rods,shortAliExpress Amazon / GeniuslinkM3 x 25mm
1Reverse Polarity Protection DiodeAliExpress Amazon / GeniuslinkB160-13-F
147k ResistorAliExpress Amazon / GeniuslinkCRGCQ1206F47K

Misc 9 items

QtyPartBuy / source linkNotes
110k resistorAliExpress Amazon / GeniuslinkCRGCQ0805F10K
1PS4 ControllerAliExpress Amazon / Geniuslink
1Power Delivery WireAliExpress Amazon / GeniuslinkMinimum 12AWG, for wires expected to carry current above 2A and/or voltage above 5V
1Connection WireAliExpress Amazon / Geniuslink22-30AWG, recommend solid core, used for all other wires
1FerrulesAliExpress Amazon / GeniuslinkOptional, if used need approx 20 across robot
1Heat ShrinkAliExpress Amazon / GeniuslinkOnly small amount required, for covering exposed solid-core wires
1100k resistorsAliExpress Amazon / GeniuslinkFor dividing the voltage at the buck converter so that it is readable by the nano
1M3 NutsAliExpress Amazon / Geniuslink
1M3 BoltsAliExpress Amazon / Geniuslink

Filaments 4 items

QtyPartBuy / source linkNotes
1Black ABS/ASA/PETG&PC FilamentAliExpress Amazon / GeniuslinkApprox 500g required
1Yellow ABS/ASA/PETG&PC FilamentAliExpress Amazon / GeniuslinkApprox 500g required
1Black PLA FilamentAliExpress Amazon / GeniuslinkApprox 750g required (includes 500g for the stand)
1White TPU FilamentAliExpress Amazon / GeniuslinkApprox 50g required, for feet

Tools 9 items

QtyPartBuy / source linkNotes
1Crimp ToolAliExpress Amazon / Geniuslink
1Hex Key setAliExpress Amazon / Geniuslink
1Soldering IronAliExpress Amazon / Geniuslink
1Wire cutterAliExpress Amazon / Geniuslink
1Wire stripperAmazon / Geniuslink
1Precision Screwdriver SetAliExpress Amazon / Geniuslink
1Heat insert setAliExpress Amazon / Geniuslink
1Heat insert tip - setAliExpress Amazon / Geniuslink
1Soldering Iron TS101AliExpress Amazon / Geniuslink