Originally Posted by
Alan Malmstrom
From what I've seen of the cnc shark it is very slow to cut raster patterns. Im under the impression that it mostly for cutting vector paths. The Carvewright is very fast going back and forth on rasters and I don't think you could get the shark to do that. Plus it's 3 times the price. I like the Carvewright.
Alan
Speed is definitely a benefit of the servo motor vs. the stepper motor. The CarveWright uses a servo motor and the Shark uses a stepper motor. Servos are much faster and generally only found in machines over $10,000. The servo is not only faster with raster, but also with vector.
Another feature of the Servo Motor is it's "intelligent feedback", which is why with the CW you get the messages or error codes on the LCD panel. Where as the stepper motor, from what I understand, just keeps blindly going and doesn't know that it is off-track. It is open-loop with no feed back. This feedback on the CarveWright servo motor not only assists in directing you to the source of your issue, it generally protects your project and/or expensive parts of the machine from damage. This is one feature that I think many customers do not realize and appreciate as a benefit.
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