non-printing or “travel” move over an area that’s not printed. This is typically used to reduce
stringing and oozing.
Speed
contains parameters used to control both the speed of the print and “travel”
moves – when the printer is moving the hot end from one position to another without extruding
any filament.
Print Speed
controls the maximum speed the hot end will move while printing. I
say “maximum” because there are many cases where a print move doesn’t move far enough to
reach the specified speed during the acceleration/print/deceleration process that comprises a
print move. The fastest print speed you can achieve is based on a number of factors, including
nozzle size, motion system, controller speed, etc. There’s no real hard & fast rule on these
things, but a good self-imposed maximum for most printers is around 100mm/sec.
Travel
Speed
dictates the speed at which the printer will move the hot end during non-printing moves.
You’ll notice that the background of the
Travel Speed
parameter is in orange. This is Cura
letting you know that it thinks the travel speed may be unusually high. Since you’re working with
a SeeMeCNC delta printer of some kind, this may not be the case. SeeMeCNC delta printers
that are equipped with the DuetWifi or DuetEthernet controller can easily run at high travel
speeds. If you’re using a SeeMeCNC delta equipped with a RAMBo or Mini-RAMBo, you
should adjust the travel speed to around 230mm/sec. Any faster than that and you run the risk
of skipping steps during travel moves. This can result in offset print layers. Try to keep your
travel speed as high as your particular printer can handle – this will greatly improve printing
time, especially when you’re printing slowly.
Cooling
contains parameters that related to part cooling during a print job. In this case
Enable Print Cooling
is checked because we’re printing with PLA. You won’t typically use any
cooling features while printing with ABS and some other high-temp materials.
Support
contains parameters that pertain to automatic support generation by the Cura
slicing engine. Support is used when you’re printing items that have an overhang that cannot
be handled with the current layer height and nozzle diameter. The general rule is that if you’ve
got an overhang that’s greater than 45 degrees, chances are pretty good you’re going to need
support.
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