It worked normally for a few months, suddenly after switching it on it started making strange loud sounds and has problem moving. Alarms appear: 1, 3, 9 and G-code blocked. alternately but most often no. 1. After switching it on, start it to make e.g. a regular square - The machine goes forward and backward and when the laser is supposed to go sideways it makes noise and shakes in place. It also has a problem with returning to the origin of the coordinate system.
Do you have limit switches?
Sounds like switches not being tripped.
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Turn off auto Home in Lightburn. Position laser module in middle of workspace. Power up machine. Click on Home.
Does it travel to the front-left corner, THEN make the noise?
Check for a loose switch or loose connector.
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