when my Laser cutter has a poor engraving quality/edge，How can I solve it?

[Sword]

If your laser cutter’s engraving quality is very poor, it has the following possibilities:

• a.Laser head is loose

Please fasten the laser head as below

• b.The focus lens or the reflective mirrors are loose

Please fasten the focus lens and the three reflective mirrors as below

• c.The material is loose

Use some magnet or heavy items to fasten the material

• d.The machine shakes

Please fasten the four wheels and the foot cup

• E.X axis belt loose

Please do these two tests
Test 1: engrave a 50x50mm square and set the scan mode as X_unilateralism
Test 2: engrave a 50x50mm square and set the scan mode as X_swing
If the engraving edge of test 1 is smooth and test 2 is not, that means the belt is loose.Please fasten the belt as below(① fix the belt; ②adjust the tension of the belt;)

• F.Please set the Scan Mode to X-unilaterism

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-I am not a technician,just a porter of knowledge.