I have 2 problems with redsail m500.Suddenly it is not firing.I change the laser tube but it is not firing again.The second problem is that i can not set the work table and the laser going to another point.Thank you...Please help me
If you just have changed tie tube and it is still not working, then it sound like the Power supply.
About the work table and the laser going to another point, it sound like you are talking about the red dot pointer. It will normally only work for one focal distance, if you are changing the height of the work table the red dot will be out and you have to set it again.
A Laser combiner can solve that problem.