Projects / Desk Animatronic Graduate

Desk Animatronic Graduate — birch torso with servo face and dual hands

Desk Animatronic Graduate

The graduation / capstone pack: a laser-cut 3mm birch plywood desk robot that combines a servo expression face with one or two five-digit tendon hands on a torso and base. Built for makers who finished Hand, Servo Face, and/or Mascot Head — integrate power budgeting, coordinated PWM timing, and a keepable presentation piece.

$17 Graduation · Capstone

Digital guide + cut files + BOM + code · Parts sourced separately · Capstone · Ages 8–14 with adult help

Actuated DOF~8–14 (config)
Servos9–14× micro
Structure3mm birch torso/base
ControllerArduino Uno
Build time12–25 hours
Skill levelAdvanced / Capstone

Pack contents

  • Capstone path: base → torso → face → hand(s) → power → coordinated demo
  • SVG cut files: desk base, torso panels, face plate, arm/hand nest
  • Verified BOM with honest ~$105–332 hardware range (Config A/B)
  • First-principles: DOF budgeting, power rails, timing as expression
  • Arduino sketch: idle breathe, wave+smile, point+frown, surprise
  • Prerequisite notes for Hand / Servo Face / Mascot Head reuse

Typical hardware cost

Default structure is laser-cut birch plywood with real fasteners, Spectra tendons, and hobby micro servos—plus an external 5 V supply (USB cannot drive this many SG90s).

  • ~$150–240 Config B (face + one five-digit hand)
  • ~$220–280 Config A (dual hands + face + PCA9685 path)
  • Reuse prior pack parts to land toward the low end

The $17 pack is the digital guide + cut files + BOM + lessons + coordinated code, plus printable Builder's Corner build journal pages. Hardware is sourced separately (~$105–332) — see Where to get kit materials. Buy with Stripe is live below.

Questions? Email us at lance.haney@gmail.com.

Pricing

Learning outcomes

  • Integrate facial expression DOF with a five-digit tendon hand on one birch structure
  • Budget electrical power for multi-servo animatronics (external rail + common GND)
  • Sequence coordinated gestures without mechanical binding
  • Document Config A vs B pin maps honestly
  • Finish a keepable desk / club graduation machine