Roland EGX-350, Руководство пользователя

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Chapter 8 Appendix
108
8-1 Examples of Settings for Cutting Parameters
Example Settings
This machine lets you perform cutting using a wide variety of workpiece materials and cutters. However, the optimal cutting
parameters that yield the desired cutting results for these combinations vary widely.
The table below shows suggested cutters and cutting parameters suited to various types of workpieces. Refer to these when
selecting the cutting parameters. Before you perform actual cutting, carry out a cutting test and adjust the parameters as
needed.
Workpiece
composition
Cutter type
Spindle speed
(rpm)
Cutting-in
amount
(mm)
Cutter feed rate
X- and Y-axis
feed rate
(mm/sec.)
Z-axis feed
rate
(mm/sec.)
Acrylic
ZEC-A2025 10000 0.2 15 5
ZEC-A2320 10000 0.2 15 5
Aluminum
ZEC-A2025-BAL 12000 0.1 5 1
ZDC-A2000 No rotation - 10 1
Brass ZEC-A2025-BAL 12000 0.1 5 1
ZDC-A2000 No rotation - 10 1
Chemical wood ZEC-A2025 12000 0.4 30 20
ZEC-A2320 10000 0.5 30 5
Modeling wax
ZEC-A2025 10000 0.5 30 10
ZEC-A2320 10000 0.8 30 5
Tips for Fine-tuning
The optimal cutting parameters are determined by a balance of such factors as the hardness of the material, the feed rate,
the spindle rotating speed, the cutting-in depth, and the capacity of the cutter. Refer to the following tips and try fine-tuning
the parameters.
Spindle Rotating Speed
In general, faster rotation provides increased cutting capacity. However, a feed rate that is too slow with respect to the spindle
speed may lead to melting of the workpiece due to heat, or to increased burring or roughness. Roughness may also occur at
some places because feed stops momentarily at places where the direction of engraving changes (that is, at corners). Lower the
spindle speed. It may also be a good idea to use faster settings for narrower cutters and slower settings for wider cutters.
Feed Rate
Faster speeds result in shorter cutting times, but the cutting load also increases accordingly. The load may overcome the
strength with which the workpiece is secured in place, resulting in crooked lines or a nonuniform cutting-in depth. Also, a
feed rate that is too fast for the spindle rotating speed may result in roughness or a raised nap. Lower the feed rate.
Cutting-in Depth
Deeper cutting-in results in a greater cutting load, and roughness becomes more likely. When you make the cutting-in
deeper, it is a good idea to raise the spindle speed and lower the feed rate accordingly. Note, however, that there is a limit to
the maximum depth. When deep cutting-in is required, it is a good idea to perform double cutting and reduce the amount
of cutting-in per pass.