متن‌باز چهارپا

استنفورد پاپر نسخه ۳

یک سگ ربات همدم منبع باز از Stanford Student Robotics، استفاده شده در Stanford's CS 123: 12 مفصل بدون برس، Raspberry Pi 5، راه رفتن، صدا و بینایی آموزش دیده با RL - حدود 2000 دلار آمریکا برای ساخت.

نوع
چهارپا
DoF
12 (+2 سروو گوش)
وزن
3 کیلوگرم
اندازه
25 × 20 × 22 سانتی متر (خمیده)
هزینه BOM
≈ 2,158.91 دلار آمریکا (v3.5)
ساختار
چاپ های PETG + TPU
  • سخت افزار را باز کنید و کد را باز کنید
  • صورتحساب کامل مواد با پیوندهای تامین کننده
  • لینک مستقیم به CAD اصلی، کد و مقالات

01 — جزئیات پروژه

مرور، BOM و منابع

Overview

Pupper V3 is a robot dog “designed to spark joy and teach robotics and AI”. Walking is trained with RL in simulation, a fisheye camera in the nose handles vision, and it can hold voice conversations with an LLM.

Each joint is a Steadywin GIM4305 brushless motor with a 10:1 planetary gearbox; the body prints in PETG with a TPU strap. The team publishes the full BOM, assembly slides, production files for both PCBs and all the code.

Key specifications

ActuatorsSteadywin GIM4305 (4005 brushless + 10:1 planetary), ≈3.5 N·m peak, ≈1.0 N·m continuous
ComputerRaspberry Pi 5 8GB + custom Pi Hat (STM32)
SensorsBNO086 IMU, IMX296 222° fisheye camera, microphone
Interaction4" LCD face, 3 W speaker, 2 ear servos
BatteryDeWalt 20V Powerstack 1.7Ah

Bill of materials

Total US$2,158.91 (official BOM v3.5, incl. optional parts and tools; minimum ≈ US$1,785.91). Printed parts and other unpriced items are in the collapsible table below.

Download the BOM (.xlsx) · Official BOM ↗

PartModel / specQtyUnitSubtotalSupplier
Stand
M2.5x25 socket head4$1.00$4.00mcmaster.com ↗
Hardware
PETG HF 1.75mm for structure1$20.00$20.00us.store.bambulab.com ↗
M2.5x10 socket head100$0.07$7.00mcmaster.com ↗
M2.5 heat-set tapered threaded insert100$0.17$17.00mcmaster.com ↗
M3x8 cap head50$0.08$4.00mcmaster.com ↗
Squash ball single or double yellow dot4$3.75$15.00amazon.com ↗
[Optional] Caution hot surface label1$10.00$10.00a.co ↗
[Optional] Stand base plate1$80.00$80.00drive.google.com ↗
Brain electronics
4x4in Waveshare HDMI Raspberry Pi screen1$75.99$75.99a.co ↗
Rasberry Pi 5 8gb1$80.00$80.00digikey.com ↗
USB Flash drive 128 gb1$14.00$14.00a.co ↗
2x20 female header extension1$2.50$2.50adafruit.com ↗
Pi hat control board1$60.00$60.00drive.google.com ↗
[Optional] AI kit1$70.00$70.00canakit.com ↗
[Optional] M.2 adapter board for AI kit1$13.00$13.00waveshare.com ↗
[Optional] Arducam IMX2961$62.00$62.00a.co ↗
[Optional] Fisheye lens1$15.00$15.00uctronics.com ↗
[Optional] Lens holder1$3.00$3.00uctronics.com ↗
[Optional] Wireless lapel microphone usb1$12.00$12.00a.co ↗
[Optional] Speaker1$4.00$4.00adafruit.com ↗
Other electronics
Power distribution board1$15.00$15.00drive.google.com ↗
Tabs for distribution board2$0.21$0.42digikey.com ↗
Dewalt 20V powerstack battery 1.7Ah2$50.00$100.00a.co ↗
PS5 Wireless Controller1$75.00$75.00a.co ↗
[Optional] Ear servos2$6.00$12.00adafruit.com ↗
[Optional] Wireless keyboard1$28.00$28.00a.co ↗
Actuation
Steadywin GIM4305 with SHS driver12$110.00$1,320.00aifitlab.com ↗
Tools
Super glue1$4.00$4.00amazon.com ↗
Electric screwdriver1$36.00$36.00a.co ↗
Total$2,158.91

Optional items, tools and reference items (not counted)

PartModel / specQtyUnitSubtotalSupplier
3D printed - Body
Upper bodyMaterial PETG; infill 0.15; supports On build plate - Tree (auto); walls 3.0; layer 0.3m…1drive.google.com ↗
Lower bodyMaterial PETG; infill 0.15; supports N; walls 3.0; layer 0.3mm; nozzle 0.6mm1drive.google.com ↗
Brain bracketMaterial PETG; infill 0.15; supports On build plate - Tree (auto); walls 3.0; layer 0.3m…1drive.google.com ↗
Power distribution board coverMaterial PETG; infill 0.15; supports N; walls 3.0; layer 0.3mm; nozzle 0.6mm1drive.google.com ↗
Ear - RHMaterial PETG; infill 0.1; supports N; walls 2.0; layer 0.3mm; nozzle 0.6mm1drive.google.com ↗
Ear - LHMaterial PETG; infill 0.1; supports N; walls 2.0; layer 0.3mm; nozzle 0.6mm1drive.google.com ↗
Front cable clamp - RH & LHMaterial PETG; infill 0.15; supports N; walls 3.0; layer 0.3mm; nozzle 0.6mm1drive.google.com ↗
Back cable clampMaterial PETG; infill 0.15; supports N; walls 3.0; layer 0.3mm; nozzle 0.6mm2drive.google.com ↗
StrapMaterial TPU; infill 1.0; supports N; walls 20.0; layer 0.3mm; nozzle 0.6mm1drive.google.com ↗
3D printed - Legs
Lower leg - RHMaterial PETG; infill 0.15; supports N; walls 3.0; layer 0.3mm; nozzle 0.6mm2drive.google.com ↗
Lower leg - LHMaterial PETG; infill 0.15; supports N; walls 3.0; layer 0.3mm; nozzle 0.6mm2drive.google.com ↗
Upper leg - RHMaterial PETG; infill 0.15; supports On build plate - Tree (auto); walls 3.0; layer 0.3m…2drive.google.com ↗
Upper leg - LHMaterial PETG; infill 0.15; supports On build plate - Tree (auto); walls 3.0; layer 0.3m…2drive.google.com ↗
Upper leg motor bracket RH & LHMaterial PETG; infill 0.15; supports N; walls 3.0; layer 0.3mm; nozzle 0.6mm2drive.google.com ↗
Hip shroud - RH & LHMaterial PETG; infill 0.15; supports N; walls 3.0; layer 0.3mm; nozzle 0.6mm4drive.google.com ↗
Hip bracket - RHMaterial PETG; infill 0.15; supports On build plate - Tree (auto, hybrid); walls 3.0; la…2drive.google.com ↗
Hip bracket - LHMaterial PETG; infill 0.15; supports On build plate - Tree (auto, hybrid); walls 3.0; la…2drive.google.com ↗
3D printed - Stand
[Optional] StandMaterial PETG; infill 0.15; supports N; walls 3.0; layer 0.3mm; nozzle 0.6mm1
Cables
12" JST ZH pre-crimped cable24digikey.com ↗
8" JST ZH pre-crimped cable24digikey.com ↗
6" JST ZH pre-crimped cable34digikey.com ↗
6pin JST ZH housing24digikey.com ↗
10pin JST ZH cable1a.co ↗
10mm cable wrap braided sleeving12
Total$2,158.91

3D printing & fabrication

  • PETG for the structure (Bambu PETG HF recommended), TPU for the strap.
  • 0.3 mm layers with a 0.6 mm nozzle; most parts 15% infill and 3 walls, ears 10%, TPU strap 100%.
  • Upper body, brain bracket and thighs need tree supports; press in M2.5 heat-set inserts at 250 °C before assembly.
  • 17 STL files in total (v3.5), linked from the official BOM.

CAD, code & papers

Get the large files — CAD, STL, STEP and code — straight from the original project:

License

Code (pupperv3-monorepo) GPL v3; documentation repository AGPL v3; the hardware (CAD / STL / PCB) has no separately stated license.

Image credits

  1. Image 1: Stanford Pupper / Hands-On Robotics (Nathan Kau 等) · docs AGPL-3.0, photo not separately licensed — source ↗
  2. Image 2: Stanford Pupper / Hands-On Robotics (Nathan Kau 等) · docs AGPL-3.0, photo not separately licensed — source ↗
  3. Image 3: Stanford Pupper / Hands-On Robotics (Nathan Kau 等) · docs AGPL-3.0, photo not separately licensed — source ↗
  4. Image 4: Stanford Pupper / Hands-On Robotics (Nathan Kau 等) · docs AGPL-3.0, photo not separately licensed — source ↗
  5. Image 5: Stanford Pupper / Hands-On Robotics (Nathan Kau 等) · docs AGPL-3.0, photo not separately licensed
  6. Image 6: Stanford Pupper / Hands-On Robotics (Nathan Kau 等) · docs AGPL-3.0, photo not separately licensed

منبع: تصاویر و داده ها: مستندات Stanford Pupper V3 و BOM (Hands-On Robotics / Stanford Student Robotics). کد GPL نسخه 3، اسناد AGPL v3. این سایت به دانشگاه استنفورد یا پروژه اصلی وابسته نیست.

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