From c9924822c96f448001788f43abcc63f2db669401 Mon Sep 17 00:00:00 2001 From: neophrema <48735216+neophrema@users.noreply.github.com> Date: Sun, 14 Jun 2020 21:00:33 +0200 Subject: [PATCH] Update filament_flow.html Some few changes --- .../calibration/filament_flow/filament_flow.html | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/resources/calibration/filament_flow/filament_flow.html b/resources/calibration/filament_flow/filament_flow.html index 5e8c35a58..1cc42e368 100644 --- a/resources/calibration/filament_flow/filament_flow.html +++ b/resources/calibration/filament_flow/filament_flow.html @@ -7,7 +7,7 @@

Filament Flow Calibration

You need to do the bed level calibration before this one.

-

This test will print five tests samples with various level of flow. You can choose the flow difference between each steps. You should start with the 10% one. +

This test will print five test samples with various level of flow. You can choose the flow difference between each steps. You should start with the 10% one. After verifying the result with the help of the table below, you have to modify the filament extrusion multiplier in your filament preset (if the -20 is the best, change the multiplier from 1 to 0.8, see the formula below). Don't forget to save it afterwards! You can continue with the 2.5 step if you want a bit more precision.

Results

Example:

@@ -28,8 +28,8 @@ After verifying the result with the help of the table below, you have to modify Flat surface
and good circle -

The flow you want to choose is the lowest that does not create gaps in the top surface. Here it seems that the good flow is below +20. So you have to change your extrusion multiplier to 1.2 and print the second set of test (or put 1.15 and call it a day).

-

Don't look at the surface quality of the letter, it should be only good at the 0, as it's for this flow we calibrated the bed height. Here, going with +20% flow, i should lower the bed a bit (redoing the bed level calibration).

+

The flow you want to choose is the lowest that does not create gaps in the top surface. In this example it seems that the good flow is below +20. So you have to change your extrusion multiplier to 1.2 and print the second set of test (or put 1.15 and call it a day).

+

Don't look at the surface quality of the letter, it should be only good at the 0, as it's for this flow we calibrated the bed height. Here, going with +20% flow, you should lower the bed a bit (redoing the bed level calibration).

Second step, starting from +20%:

@@ -62,17 +62,17 @@ second step i choose +5, so i have ((100+5)/100) * 0.9 = (1.05) * 0.9 = 0.945
  • Put the filament through it (by hand or using the software control)
  • Cut the filament flush with the output of the extruder. Measure with your spring-steel ruler that you measure just 0mm. If not, note the value and don't forget to remove it from every other measure you do.
  • Ask your extruder to extrude 200mm of filament (gcode: G1 E200).
    • -
  • Measure the length o the extruded filament. Repeat this process two times more if you want to be more precise.
    • +
  • Measure the length of the extruded filament. Repeat this process two times more if you want more precision.
  • You have to change your extruder multiplier (estep, step_distance) by multiplying (or dividing, depending on your firmware) the current value by (200 / average_measured_value).

    • Note that this value may change if you change the pressure the extruder exerts against the filament.

    Notes

    It's very difficult to tune the flow below the 2% mark, and no filament is consistent enough to warrant it anyway. Filament's that have a guarantee of +-0.03mm has a ~7% variation between the low and high end cross section.

    -

    Most of the calibrations need to done is the right order. This one should be the second.

    +

    Most of the calibrations need to be done in the right order. This one should be the second.

    You may want to re-do the bed level calibration if the result is below 0.9 or higher than 1.1.

    Note that the filament extrusion multiplier can change with a different filament material, as a softer one can be squished/dented more by the extruder and so have a lower diameter in the extruder gears.

    -

    If your printer extruder eats the filament and can't complete the top layer, you will have to increase the ironing distribution (by 5% increments). (Expert setting, print -> infill)

    -

    This test set the setting "Complete Individual objects" to true, so you may want to reset your print settings afterwards

    +

    If your printer extruder 'eats' the filament and can't complete the top layer, you will have to increase the ironing distribution (by 5% increments). (Expert setting, print -> infill)

    +

    This test sets the setting "Complete Individual objects" to true, so you may want to reset your print settings afterwards

    Licence for models used for this calibration test: CC BY-SA 3.0