Usage：
1. Pull out the 4-pin wire on Y axis stepper motor of Engraver.
2.Then insert the wire on stepper motor of Rotate Engraving Module.
3. Place Rotate Engraving Module under the laser module and start to engrave.(Need to change parameter of Y axis on GRBL software)
Minimum processing length：50mm
Maximum processing length：400mm
Minimum clamping diameter：10mm
Maximum clamping diameter：100mm
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