Summa S3 Series - Peeled Knife Pressure Test Pattern

S Class 3 User’s Manual
Setup 1-30
Peel out the rectangle and inspect the media backing.
FIG 1-24
1-24 PEELED KNIFE PRESSURE TEST PATTERN
The knife depth is set correctly when the test pattern is cut completely through the vinyl, the vinyl is
removed, and the blade tip visibly scratched the front side of the media backing. The blade should
never cut through the backing; only slightly scratch its silicon coating and first few fibres.
Because the knife pressure setting depends on the thickness and type of media to be cut, adjusting
the knife pressure will require some practice. In general, the knife depth must be increased when
using thicker types of vinyl and decreased when using thinner types of vinyl.
ATTENTION: After setting the cutting depth and/or the knife pressure, perform a
thorough visual check of the knife blade protruding from the knife holder and test
the cutting results on a scrap of vinyl media.
CAUTION: Do not operate the cutter if the knife blade cuts through the media
backing, as this will seriously damage the cutter's rubber cutting strip and the
knife.
CAUTION: For most vinyl cutting operations, the knife blade tip will be barely
visible at the bottom of the knife tool. If the knife blade tip is clearly visible, the
cutting depth must be readjusted. To prevent damage to the cutter, check the
depth of the knife blade tip and the quality of the cut each time you load a different
type of vinyl into the cutter.