Adjusting the Power Correction factor CL:
The factor CL (menu settings>advanced options>Tab Testpulse) is a minimum
power that will affect the material even when the engraving speed is zero.
The reason why we need a power correction is in the material behavior itself:
Many materials show a nonlinear response. That means when you engrave on the
material with a continuously increased power level the change of color will not have a
linear connection with the change of power. For many materials you need a certain
minimum power level that is necessary (e.g. anodized aluminium: because of the
high heat conductivity, that causes a quick heat transfer you need a relatively high
factor CL≈30) for marking the workpiece. This mimimum power can be adjusted by
setting the power correction factor CL.
Note: The power correction factor must be adjusted for each material individually and
can be changed only in the Trotec manager. For most materials a low value of
CL≈0..3 is OK)
Steps for adjusting the power correction:
1. Create a rectangular cut job (≈ 5 x 5cm)
2. Vector into the material. Set the parameters so that you only mark the surface
and do not cut deep into the material.
3. If the cut line is closed on the corners but is thicker where the lines meet reduce
CL.
4. If the cut line is not closed on the corners increase CL.
5. As soon as you have a closed curve with constant line thickness you´ve found the
correct factor of CL.
Note: This adjustment is only necessary when you want to mark only the surface of a
material. It is not needed for Lasercutting all the way through the material.
A change of the tickle power setting will also affect the correct setting of CL.
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