Dobot M1 User Guide
7
Maintenance
Issue V1.0.4 (2018-01-31)
User Guide
Copyright © Yuejiang Technology Co., Ltd
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(400,0,0,0) has been set by default, Dobot M1 can be directly put in use. After parts (motors,
reduction gear units, battery, etc.) have been replaced or robotic arm has hit the work piece, the
origin of Dobot M1 will be changed. You need to reset the origin. When Dobot M1 moves with
different arm orientation, the high precision of J2 is required. Therefore, after resetting the
origin, you need to calibrate J2 to improve the absolute precision.
Generally, before and after switching the arm orientation at the same point, the J2
coordinates are axisymmetric. After resetting the origin, the J2 coordinates may become non-
axisymmetric, resulting in that Dobot M1 cannot move to the same point with different arm
orientation when implementing playback. It is necessary to make the J2 coordinates
axisymmetric by compensating the joint angel of J2 to improve the absolute precision after
resetting the origin. So that Dobot M1 can move to the same point with different arm orientation
when implementing playback.
Prerequisites
Dobot M1 has been powered on.
Dobot M1 has been connected to the PC successfully.
Dobot M1 has been connected to the emergency stop switch.
The pen holder kit has been installed on the terminal. The size of the pen holder should
be according with the size of the terminal. For details, please see
Please prepare an A4 sheet of paper, and draw a small dot as a calibrated point, as shown
Figure 7.17 Calibration point
Procedure