• 4 Degree of freedom robotic arm
• Modular design allows for multiple configurations and sizes
• ~500g lifting capacity at full reach (~24”)
• Same size as a human adult arm
• 90 degree metal mount provided for the wrist (no gripper)
• Servo controller and power supply sold separately
The RobotShop M100RAK Modular Robotic Arm Kit is one of the first affordable and versatile “intermediate sized” robotic arms on the market. The arm has a maximum (suggested) reach of just over 24 inches without the addition of an end effector (gripper) and can lift about 500g at this extension. The closer the weight is to the body, the more the arm can lift.The M100RAK includes all hardware and 4x Hitec HS785HB servo motors. You will need to purchase a servo motor controller (SSC-32 suggested) and a 4.8V to 6V power supply capable of ~10A spike. We suggest an old computer power supply (5V line can normally handle 10-30A).
Most robotic arms are either too small for regular applications, or too expensive to be used as development platforms by hobbyists. The M100RAK is intended to be the perfect size for most robotic arm applications since it is roughly the length of a human arm, and still powerful enough to lift a good sized weight.
The kit includes modular joints and several lengths of tubing, allowing you to resize and configure the arm as you wish. The default configuration uses two 8” arms between the shoulder and the elbow, and one 4” tube between the elbow and the wrist. Note that each servo can potentially draw up to 1.8A under full load, so we suggest a power supply capable of at least 4A at 4.8V and 5A at 6V.
Warning: The arm contains open gears and is very powerful. Please take every precaution to ensure no objects (especially fingers) get caught in the gears. Should you have this fear, we suggest adding a bent cardboard or plastic cover. Keep out of reach of children.
Applications:
• Robotic arm: With the addition of a gripper, a standard robotic arm can be used for many different projects.
• Computer-controlled camera mount: The basic arm includes a 90 degree robust metal mounting plate which can, without any modifications, be used to mount a standard camera.
• 3D image capture: Adding a distance sensor to create a complex 3D scanner. Adding a variety of sensors to a robotic arm
• Complex, router-based CNC machine: Mount a handheld router and create a manual or CNC controlled router arm
• Scale human arm: The length of the shoulder joint to the elbow joint is almost the same length of a adult’s humerus bone, while the length from the elbow to the wrist joint is almost the same as an adult’s Ulna. There are two degrees of freedom missing in the arm to make it match that of a human: a rotation joint within the “humerus” and a rotation joint within the “ulna”.
• Supplier code : M100RAK