XRP robotic arm

In general

This is a robot robotic arm kit model.  The arm with the XRP robot allows you to manipulate objects. Assembling this kit will allow students to gain an insight into the world of robotics not only from the programming side but also from the mechanical side.

Hardware

This design uses for its drive: three MG90S 14g servo motors. I didn't have enough MG60S servos so I had to use another one for the photo.

Socket head screws can be used to assemble the arm: three M3x5 screws, five M3x6 screws, nine M3x10 screws, thirteen M2x4 screws, two M4x40 screws, and three M3x40 screws.

The rest of the screws used to mount the servos are part of the servo motor delivery.

Printing

This model was designed so that no supports are needed to print it. If you have an older printer and you are not sure if it can handle printing without supports, feel free to put them there, it is up to you. You may need to adjust the size of the screw holes to the size your particular printer will make.

Assembly instructions

-Screw the servo motor to the gripper base (1) M2x4

-Then screw the toothed arms(2),(2.1) to the base(1) M2x4

-Screw the inner arms of the jaws (3) to the base (1) M2x4

-Screw jaws(4),(4.1) to arms(2),(2.1),(3) and base(1) M2x4

-Screw the base of the arm(5) to the main beam(6) and the arm(16) M3x10

-Push the servo motor rotor into the hole in the main beam (6)

-Screw the servo motor to the base(5) M2x4

-Screw the servo motor lever (7) to the servo

-Screw the base (5) to the arm holder (8) M3x10

Screw the other side of the arm holder (8) to the base (5) M3x10

Screw the M4x40 screw into the hole in the arm holder (8) and the M3 nut

Screw the lower side of the bracket (8.2) M3x40

Screw the two-hole arm (9) onto the M3x6 main beam (6).

Screw the arm part (10) to the main beam (6) and the two-hole arm (9) M3x6

Screw arm(11),(12) and(13) to joint(14) two M3x6, one M3x10

Screw the arm(11) to the base(5) M3x6

Screw the Gripper with M3x5 arms