diff --git a/calibration.html b/calibration.html index c66cb0d..c31d0d2 100644 --- a/calibration.html +++ b/calibration.html @@ -687,6 +687,7 @@
Other factors beyond the scope of this test - Important!

The following form will create a retraction tower to conveniently test back to back parameters in the same print. Of the three available parameters, it is best to change only one per test print. For example, keep the retraction speed and extra restart distance the same, but vary the retraction distance over each segment. Changing more than one parameter makes is hard to tell what made the difference. The print is quick, so repeat the test varying other parameters until you are happy with them all.

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Here is the STL if you would like to slice a similar test yourself: retractiontest.stl

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Here is the STL if you would like to slice a similar test yourself: retractiontestv2.stl. This file has been updated to V2, which changes the external shape from circular to pentagonal. It is also slightly shorter to print faster. The original file is still available here: retractiontest.stl

Nozzle Diameter / Layer Height

Select your nozzle diameter and layer height. If you have not changed your nozzle, it will likely be 0.4 mm. 0.2 mm is a typical layer height for this nozzle. First layer height will be locked to the overall layer height. There are too many permutations to include support for first layer height variation too.

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  • M221 S38 can also be used to compensate for 2.85 mm filament and M221 S34 for 3.00 mm filament instead of the default 1.75 mm.
  • Setting the K factor for linear advance. For example, M900 K0.11
  • Custom ABL sequence. By default, only G28 is present. This gcode will be inserted immediately afer that so custom commands can be used here.
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  • Anythng else you have in your start gcode, such as setting acceleration values, E-steps, etc.
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  • Anything else you have in your start gcode, such as setting acceleration values, E-steps, etc.
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    The following form will create a temperature tower to conveniently test back to back parameters in the same print. There are five segments to vary the temperature. Generally the lowest temperatures would be at the start of the print (segment A) and the increase up to the highest by the top of the print (segment E).

    Your 3D printer firmware will have a minimum hot end temperature extrusion is allowed and a maximum hot end temperature for safety. Make sure to keep within these boundaries to avoid errors.

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    Here is the STL if you would like to slice a similar test yourself: temperaturetower.stl

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    Here is the STL if you would like to slice a similar test yourself: temperaturetowerv2.stl. This is an updated model that prints in less time, has more variation in overhangs, and has a narrow pyramid in each band to try and snap off to test layer adhesion.

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    The original design can be found here: temperaturetower.stl

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    Nozzle Diameter / Layer Height

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    Select your nozzle diameter and layer height. If you have not changed your nozzle, it will likely be 0.4 mm. 0.2 mm is a typical layer height for this nozzle. First layer height will be locked to the overall layer height. There are too many permutations to include support for first layer height variation too.

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    Additional start gcode

    If you have additional start commands, tick the box and enter the gcode. This can be used for an extruder prime sequence, overwriting the standard flow rate, compensating for 2.85/3.00 mm filament, setting K factor and more. Tick the box for more details.

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    For the bed, typical PLA temperature is 60, PETG 80, ABS 100, and TPU 5 (effectively off).


    Part Cooling Fan

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    PLA typically has the part cooling fan come on from layer 2. Alter this default behaviour here.

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    Regardless of which part cooling fan behaviour you select here, the five bridge sections at the top of each segment will always print with 100% part cooling. Once the bridge is printed, the fan will then return to the speed set in the dropdown.

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    Auto Bed Levelling

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    Retraction

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    For initial tests, you can leave the retraction speed at 40 mm/sec. For a bowden tube printer, 6mm is a likely retraction distance. For direct drive, a starting value of 1mm may be suitable. If you are following this guide in order, you should already know your ideal retraction values.

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    If you don't know what to enter here, you can leave the retraction speed at 40 mm/sec. For a bowden tube printer, 6mm is a likely retraction distance. For direct drive, a starting value of 1mm may be suitable. If you are not sure about extra restart distance, leave this as 0.

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    Hot end temperature

    Typically, filament comes with a recommended hot end temperature. It is recommended to use values either side of this. For instance, if a PLA filament asked for 200 degrees, you may vary the temperature from 190, 195, 200, 205, 210 (the default values of the form). Typically, the first layer temperature will be elevated to increase adhesion with the bed, especially if a lower than usual temperature is being trialled for segment A.

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    Use the following form to customise the gcode to your liking:

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    Nozzle Diameter / Layer Height

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    Select your nozzle diameter and layer height. If you have not changed your nozzle, it will likely be 0.4 mm. 0.2 mm is a typical layer height for this nozzle. First layer height will be locked to the overall layer height. There are too many permutations to include support for first layer height variation too.

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    Additional start gcode

    If you have additional start commands, tick the box and enter the gcode. This can be used for an extruder prime sequence, overwriting the standard flow rate, compensating for 2.85/3.00 mm filament, setting K factor and more. Tick the box for more details.

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    Part Cooling Fan

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    PLA typically has the part cooling fan come on from layer 2. Alter the default behaviour here:

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    Auto Bed Levelling

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    Retraction

    For initial tests, you can leave the retraction speed at 40 mm/sec. For a bowden tube printer, 6mm is a likely retraction distance. For direct drive, a starting value of 1mm may be suitable. If you are following this guide in order, you should already know your ideal retraction values.

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    Base feedrate/speed

    You can specify the feedrate for X and Y movements. The inner perimeter will be set to this speed and the outer perimeter 50% of this speed.

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