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docs: Note importance of slow extrude rate in Rotation_Distance.md 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Kevin O'Connor 2021-08-25 12:03:44 -04:00
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6
docs/Rotation_Distance.md
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@ -62,7 +62,11 @@ Then use the following procedure to "measure and trim":
3. Extrude 50mm of filament with the following command sequence: `G91`
followed by `G1 E50 F60`. Note 50mm as
`<requested_extrude_distance>`. Wait for the extruder to finish the
move (it will take about 50 seconds).
move (it will take about 50 seconds). It is important to use the
slow extrusion rate for this test as a faster rate can cause high
pressure in the extruder which will skew the results. (Do not use
the "extrude button" on graphical front-ends for this test as they
extrude at a fast rate.)
4. Use the digital calipers to measure the new distance between the
extruder body and the mark on the filament. Note this as
`<subsequent_mark_distance>`. Then calculate: