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Print speed and Flow


Clancey
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Posted · Print speed and Flow

How does flow work with Print speed, is 100% optimal for every speed?

As an example: If I print at Speed 35, Flow 100% for 10 seconds, am I using half the material of Speed 70, Flow 100% for 10 seconds?

Or, is 100% Flow an arbitrary flow rate predetermined by the feeder, therefore twice as much material (over distance) extruded at the lower speed?

Thanks.

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    Posted · Print speed and Flow

    I would describe it different. You're asking about absolut values for speed and a percentage value for the flow - these are probably the settings from the slicer (Cura)? A better word (IMHO) for speed is: feedrate, this affects all axis at the same time (including the extruder axis). Flow percentage only affects the extruder axis.

    The slicer calculates the amount of volume that needs to be extruded at the selected speed and multiplies it with the chosen factor for the flow rate. As long as the material diameter matches the appropriate setting of the slicer (amongst other things), 100% is always right. Exceptions are special use cases, where do you explicitly want a different effect - but then you should know what you are doing... :)

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    Posted · Print speed and Flow

    Good explanation, I get what you're saying completely. Thanks.

    Yes, there are a couple of materials I've had to adjust, but it's rare to half or double a speed or feed rate, or flow rate, or any setting. So while making small adjustments it's not always obvious what the different effects are.

    Thanks.

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