Many people working on log lathe are not just faced with such a problem, it does not properly set the log in the centers, the result was a great wane on the finished product.
Laser Leveling LCS-2
  To solve this problem, the specialists of our company developed the laser beam position corrector LCS-2, which helps to quickly and accurately set the beam at the center back and headstock log lathe.

Laser Leveling LCS-2

     This device consists of two modules, vertical and horizontal, and the power supply unit, each unit consisting of two movable lasers projecting a line of green. Thus the operator can see the contours of the future product in the vertical and horizontal plane, thereby eliminating errors at the stage of installation logs.  

Laser Leveling LCS-2
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Video of the laser position corrector LKP-2: