Robot Arm Servo Motor Pack
Robot Arm Servo Motor Pack
SKU: Grade Level: 6-12 | SKU: 945-RAS12
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The Robot Arm Servo Motor Pack includes the pre-calibrated servo motors needed to assemble TechBox robot arm projects. Each build set includes one Base Motor, one Shoulder Motor, one Elbow Motor, and one Claw Motor. Every servo arrives pre-calibrated with a pre-attached servo horn, color indicators, and wire labels to make classroom setup, distribution, and troubleshooting easier.
What's Included:
Each robot arm build set includes:
- (x1) Base Motor – Pre-calibrated MG90S limited rotation servo with pre-attached servo horn.
- (x1) Shoulder Motor – Pre-calibrated MG90S limited rotation servo with pre-attached servo horn.
- (x1) Elbow Motor – Pre-calibrated MG90S limited rotation servo with pre-attached servo horn.
- (x1) Claw Motor – Pre-calibrated MG90S limited rotation servo with pre-attached servo horn.
Available Pack Sizes:
- 12-Build Pack – Includes 12 complete robot arm motor sets, 48 servos total.
- 18-Build Pack – Includes 18 complete robot arm motor sets, 72 servos total.
Motor Features:
- Pre-Calibrated Servos – Each MG90S limited rotation servo is prepared for its assigned robot arm position.
- Position-Specific Motors – Includes dedicated Base, Shoulder, Elbow, and Claw motors for each robot arm build.
- Pre-Attached Servo Horns – Servo horns arrive installed to reduce setup time and simplify classroom assembly.
- Color Indicators – Visual markers help students and educators identify each motor’s correct placement in the robot arm.
- Wire Labels Included – Labeled wiring supports faster setup, easier troubleshooting, and cleaner classroom organization.
- Classroom-Ready Quantities – Available in 12-build and 18-build configurations to match common TechBox classroom pack sizes.
Product Specifications:
- Servo Type: MG90S limited rotation servo
- Motor Positions: Base, Shoulder, Elbow, and Claw
- Preparation: Pre-calibrated with pre-attached servo horns
- Identification: Color indicators and wire labels included
- 12-Build Pack Quantity: 48 total servos
- 18-Build Pack Quantity: 72 total servos
- Use Case: TechBox robot arm builds, classroom robotics, replacement motors, and kit maintenance

What Educators are Saying
Real feedback from educators using TechBox.
"My students had such a great time with their Tech Boxes. Many, were so excited to accomplish the task that they were ready to take them home to continue the lesson.
You know what else was cool? All the kids who were running around after the lesson with Tech Boxes in their arms bragging to other students and fielding questions about them - they were so excited and proud!"
Educator, DuPont Manual High School, Louisville KY
"TechBox offered the hands-on interactive & educational component to Centre College's high school STEM camp that we needed! The Laser Stem Matrix introduced the students to wiring bread boards and programming, and it sparked the interest of some potential engineers in the group! With a range of exposure to technology and electronics, TechBox was able to meet the needs of everyone - from the beginner to the experienced. The instructions were easy to follow and offered educational lessons throughout for those who had less experience."
STEM Summer Camp Instructor, Centre College (KY)
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