Manual

Table Of Contents
Dobot Magician User Guide 3 Introduction
Issue V1.7.0 (2019-01-09) User Guide Copyright © Yuejiang Technology Co., Ltd.
21
Coordinate System
Dobot Magician has two types of coordinate system, the joint one and the Cartesian one, as
shown in Figure 3.4 and Figure 3.5 respectively.
Figure 3.4 Joint coordinate system
Figure 3.5 Cartesian coordinate system
Joint coordinate system: The coordinates are determined by the motion joints.
If the end-effector is not installed, Dobot Magician contains three joints: J1, J2, and
J3, which are all the rotating joints. The positive direction of these joints is counter-
clockwise.
If the end-effector with servo is installed, such as suction cup kit, gripper kit, Dobot
Magician contains four joints: J1, J2, J3 and J4, which are all the rotating joints. The
positive direction of these joints is counter-clockwise.
Cartesian coordinate system: The coordinates are determined by the base.
The origin is the center of the three motors (Rear Arm, Forearm, base).
The direction of X-axis is perpendicular to the base forward.