Abstract
This note describes the steps taken to test and measure the maximum filament flow rate supported by a 3D printer.The flow rate depends on a number of factors, including:
- Hot end heating capability: how quickly can the hot end get heat into the filament as it passes through.
- Filament and hot-end differential temperature: How much energy is taken from the hot end when the filament is melted.
- Drive capability of the extruder: How quickly can the extruder motor pass filament into the hot end.
Test Overview
The test passes different lengths of filament through the hot end at a set temperature over a fixed 10 second interval.It is noted when the extruder starts to click / slip, and the extruded filament is weighed and compared against the expected results.
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