S CLASS™ cutter User’s Manual
Basic Operation 2-9
When the knife offset is set correctly, the test pattern looks like this:
FIG 2-6
2-6 CORRECT TANGENTIAL KNIFE CALIBRATION TEST
Rectangle 1 and 2 should weed out (remove) smoothly without sticking to the rest of the
vinyl.
The fan shaped pattern 3 should have a clear cut line in the middle; the ones at the sides
show burs.
The squares in 4 should be aligned and equal in size.
The 4 vertical cuts in 5 should be clear without any burs and straight all the way from top
to bottom (not rounded near the horizontal lines).
NOTE: It is possible that not all test patterns come out perfect (depends on the type of
vinyl). Test pattern 1 and 4 are the most important test patterns. They should be as close to
perfect as possible.
Start with the setting of the origin, then set the other parameters
Origin correction
If the clear cut line in test pattern 3 is to the right, then increase the value of the origin,
begin in steps of 20, and lower the steps when nearing the correct origin setting.
It helps sometimes to gently feel the pattern to find out which side has the clear-cut line.
If the clear cut line in test pattern 3 is to the left, then decrease the value of the origin,
begin in steps of 20, and lower the steps when nearing the correct origin setting.
Lateral correction
Weed out (remove) the rectangle in pattern 1 and in pattern 4, if the test pattern is like
the one below, decrease the value of the lateral parameter to correct the closing lines
cut.
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