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10 SPECIFYING THE PEN CONDITIONS
Reference Values for Plotting Conditions
Pen type FORCE SPEED QUALITY
Water-based ballpoint pen 20 to 23 40 2 to 3
Oil-based ballpoint pen 18 to 23 40 2 to 3
To avoid unnecessary wear on the pen’s tip, specify the FORCE value to its lowest permissible
setting. When specifying the SPEED value, check that the plotted results are not too faint or otherwise
unsatisfactory.
Note:
• Raising the SPEED and QUALITY settings results in a coarser nish but shortens the overall cutting/
plotting time.
• Lowering the SPEED and QUALITY settings results in a ner nish but lengthens the overall cutting/
plotting time.
Precautions on Cutting Rubber for Sandblasting
(1) The amount of rubber that can be cut in one session varies with the characteristics of the medium
(thickness, hardness, and weight) and the pattern to be cut. Use the medium that will actually be cut
to alternately adjust the cutting conditions and run a cutting test.
(2) If the rubber tends to curl, rubber that has been cut may come loose and contact the travelling cutter
blade, thereby preventing the starting and end points of cutting from accurately matching.
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