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Revision as of 20:44, 7 November 2018

1,013 bytes added ,  7 November 2018
→‎Recommended Filament Settings: Update settings to Cura 3.4.1 settings that WORKED REALLY WELL.
(→‎Recommended Filament Settings: Last edit to Cura 3.0.4 PETG settings (travel speed was toooo fast))
(→‎Recommended Filament Settings: Update settings to Cura 3.4.1 settings that WORKED REALLY WELL.)
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'''CURA 3 settings for PETG by iPrint3D & MG Chemicals'''
'''CURA 3.4.1 settings for PETG by iPrint3D'''


'''PLEASE NOTE:''' These settings are Updated for Cura 3.3.1 -- using the "Scalable Extra Prime" Plugin. The below settings were used/tested only with Solid Color (not transparent) PETG filaments. As the Settings for any Transparent filament can be noticeably different for a solid color of the same product, the below might not provide acceptable results for Transparent PETG filaments.
'''PLEASE NOTE:''' These settings are a work in progress ... additional settings will be added as how to use those settings is worked out.


'''Quality'''
'''Quality'''
* Draft Quality ==> Layer Height: 0.2mm (Don't use less than this with PETG.)<br />==> HINT: For faster prints, a Layer Height 0.25mm also works extremely well.
* Layer Height: 0.225 mm
* Initial Layer Height: 0.3 mm
* Line Width: 0.35 mm ('''smaller''' than the 0.4mm nozzle)
'''Shell'''
'''Shell'''
* Wall Thickness: 1.2 mm (3 perimeters seem to work a bit better than 2)
* Wall Thickness: 0 mm (using Wall Line Count instead)
* Top/Bottom Thickness: 1.2 mm (Same as above. Requires more than for PLA.)
** Wall Line Count: 3 (3 perimeters seem to work a bit better than 2)
* Top/Bottom Thickness: 1.2 mm (Requires more than for PLA.)
* Top/Bottom Pattern: Zig Zag
* Top/Bottom Pattern: Zig Zag
* Optimize Wall Printing Order: SELECTED
* Bottom Pattern Initial Layer: Concentric (To get a better bottom surface.)
* Optimize Wall Printing Order: UNSELECTED
* Alternate Extra Wall: SELECTED
* Alternate Extra Wall: SELECTED
* Compensate Wall Overlaps: SELECTED
* Fill Gaps Between Walls: Everywhere
* Fill Gaps Between Walls: Everywhere
* Filter Out Tiny Gaps: SELECTED
* Filter Out Tiny Gaps: SELECTED
* Z Seam Alignment: Shortest
* Print Thin Walls: SELECTED
* Seam Corner Preference: Hide or Expose
* Z Seam Alignment: Shortest (Change this as needed.)
* Seam Corner Preference: None (Change this as needed.)
* Extra Skin Wall Count: 1
'''Infill'''
'''Infill'''
* Infill Density: 100% or less, as appropriate<br />==> 100% often used, as PETG is more flexible than PLA<br />==> 25% often used when just want infill to print on top of
* Infill Density: 100% or less, as appropriate<br />==> 100% often used, as PETG is more flexible than PLA. (100% also permits MAXIMUM layer bonding.)<br />==> 25% often used when just want infill to print on top of
* Infill Pattern: Zig Zag
* Infill Pattern: Zig Zag
* Infill Overlap Percentage: 50<br />==> The Infill Overlap is '''extremely high'''! This value is used to ensure the infill will not separate from the Shell layers.
* Infill Overlap Percentage: 0 (Using Line Width < Nozzle Width instead.)
* Skin Overlap Percentage: 10
* Skin Overlap Percentage: 0 (Using Line Width < Nozzle Width instead.)
* Minimum Infill Area: 2  mm²
* Infill Wipe Distance: 0 (Using Line Width < Nozzle Width instead.)
* Infill Before Walls: UNSELECTED (Select this only when needed.)
* Minimum Infill Area: 2  mm² (Can set to 0 if that seems needed.)
'''Material'''
'''Material'''
* Printing Temperature: 240 &deg;C
* Printing Temperature: 235 &deg;C (This should be set by the '''Material''' settings.)
* Printing Temperature Intitial Layer: 235 &deg;C
* Build Plate Temperature: 0 &deg;C
* Build Plate Temperature: 0 &deg;C
* Diameter: 1.75 mm<br />==> if possible, use the actual measured filament dia.
* Diameter: 1.75 mm (This should be set by the '''Material''' settings.)<br />==> if possible, use the actual measured filament dia.
* Flow: 100 %
* Flow: 94 %
* Retraction Distance: 0.5 mm<br />==> Note: I’m using the combination of “Coasting” together with a small retraction.<br />
* Initial Layer Flow: 96 % (To get better buildplate adhesion.)
* Retraction Distance: 0.5 mm (Retraction & Coasting work together.)
* Retraction Speed: 25 mm/s
* Retraction Speed: 25 mm/s
** Retraction Retract Speed: 20 mm/s
** Retraction Retract Speed: 20 mm/s
** Retraction Prime Speed: 25 mm/s
** Retraction Prime Speed: 25 mm/s
* Retraction Extra Prime Amount: -0.0025 mm³<br />The Scalable Extra Prime plugin is now used together with this.
* Retraction Extra Prime Amount: -0.0005 mm³
* Retraction Minimum Travel: 1.2 mm  (width of 3 wall perimeters)
* Retraction Minimum Travel: 1.2 mm  (3 Nozzle Width, less than 4 Line Width)
* Enable Scalable Extra Prime: SELECTED
* Maximum Retraction Count: 30 (# usually for the above Retraction Distance.)
** Extra Prime Min Travel: 20 mm
* Limit Support Retractions: UNSELECTED
** Extra Prime Max Travel: 70 mm
** Min Extra Prime: 0 mm
** Max Extra Prime: 0.005 mm
** Enable For All Travels: UNSELECTED
'''Speed'''
'''Speed'''
* Print Speed: 25 mm/s
* Print Speed: 25 mm/s
** Infill Speed: 25 mm/s<br />==> Can try 37.5 mm/s for prints with larger areas of infill.<br />
** Infill Speed: 25 mm/s<br />==> Can try 30 to 35 mm/s for prints with larger areas of infill.<br />
** Wall Speed 20 mm/s
** Wall Speed 25 mm/s
*** Outer Wall Speed: 20 mm/s
*** Outer Wall Speed: 20 mm/s
*** Inner Wall Speed: 25 mm/s
*** Inner Wall Speed: 25 mm/s
** Top/Bottom Speed: 20 mm/s
** Support Speed: 25 mm/s
** Support Speed: 25 mm/s
* Travel Speed 200 mm/s
* Travel Speed 200 mm/s
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'''Travel'''
'''Travel'''
* Combing Mode: All<br />==> This sometimes provides *much* faster print times.<br />==> Set to “No Skin” or “Off” only if surface movement lines are a problem.
* Combing Mode: All<br />==> This sometimes provides *much* faster print times.<br />==> Set to “No Skin” or “Off” only if surface movement lines are a problem.
* Max Comb Distance With No Retract: 2.0 mm (Set to some reasonable value. New in Cura 3.4)
* Retract Before Outer Wall: UNSELECTED
* Avoid Printed Parts When Traveling: SELECTED
* Avoid Supports When Traveling: SELECTED
* Z Hop When Retracted: SELECTED
* Z Hop When Retracted: SELECTED
* Z Hop Only Over Printed Parts: UNSELECTED
* Z Hop Height: 0.5 mm
* Z Hop Height: 0.5 mm
'''Support'''
* Support Pattern: Lines
* Support Density: 20%
'''Cooling'''
'''Cooling'''
* Enable Print Cooling: UNSELECTED
* Enable Print Cooling: UNSELECTED (DON'T use Filament Cooling with PETG!)
* Minimum Layer Time: 10 s
* Minimum Layer Time: 10 s
'''Support'''
* Generate Support: SELECTED (Unselect this when not needed.)
* Support Placement: Everywhere (Use "Touching Build Plate" when appropriate.)
* Support Overhang Angle: 50 &deg;
* Support Pattern: Lines ("Least difficult" PETG supports to remove.)
* Support Wall Line Count: 1 (This makes supports print '''much''' better.)
* Support Density: 20% (Needs more than PLA.)
* Support Join Distance: 2.5 mm (Adjust as appropriate.)
* Support Horizontal Expansion: 0.2 mm
* Gradual Support Infill Steps: 0 (Using this is not tested yet.)
'''Build Plate Adhesion'''
'''Build Plate Adhesion'''
* Build Plate Adhesion Type: Brim
* Build Plate Adhesion Type: Brim
* Brim Width: 10 mm
* Brim Width: 10 mm
* Brim Only on Outside: SELECTED (Select or Unselect as appropriate.)
'''Special Modes'''
'''Special Modes'''
* Print Sequence: One at a Time
* Print Sequence: All At Once (This setting seems needed to make other things work.)
'''Experimental'''
'''Experimental'''
* Maximum Resolution: 0.01 mm
* Enable Costing: SELECTED
* Enable Costing: SELECTED
** Costing Volume: 0.1 mm<sup>3</sup> (aprox. 150% the Cura 3 default value)<br />==> The '''new''' (experimental) Costing Feature of Cura 3 is what enables the above settings to provide a very noticeable improvement in the PETG print quality. Where using Costing together with a small retraction works far far better than using just retractions.<br />
** Costing Volume: 0.1 mm<sup>3</sup> (aprox. 150% the Cura 3 default value)<br />==> Costing together with a small retraction seems to works better than using just retractions.<br />
* Alternate Skin Rotation: SELECTED
** Minimum Volume Before Coasting: 0.8 mm<sup>3</sup>
** Coasting Speed: 100 %
* Alternate Skin Rotation: SELECTED (UNSELECT this when using Supports.)
<br />
<br />
NOTES:
NOTES:
* The above settings are a "best compromise", to get '''good''' results, without limiting the print speed any more than necessary.
 
* For best results printing PETG, '''do not use the Filament Fan'''. (Print with the Hotend Heatsink Fan '''only'''.) When the Filament Fan is used, expect layer separation problems. When printed without using a Filament Fan, PETG has '''exceptional''' layer bonding.
* For best results printing PETG, '''do not use the Filament Fan'''. (Print with the Hotend Heatsink Fan '''only'''.) When the Filament Fan is used, expect layer separation problems. When printed without using a Filament Fan, PETG has '''exceptional''' layer bonding.
* As a filament type, PETG is terrible at things like bridging. This includes you might need just a bit more top surface over infill to get a smooth outer layer.
* As a filament type, PETG is terrible at things like bridging. This includes you might need just a bit more top surface over infill to get a smooth outer layer.
* As the head moves through spiderweb thin strands between printed parts, PETG filament build-up on the '''outside''' of the printhead. Despite this, any print that could be described as a "highly shaped bock of plastic" will work well. But for prints where the head constantly moves over open air (no plastic under the head), the melted PETG dropping off the outside of the printhead might cause that print to fail.
* As the head moves through spiderweb thin strands between printed parts, PETG filament build-up on the '''outside''' of the printhead. So any print that could be described as a "highly shaped bock of plastic" should work well, but prints where the head constantly moves over open air (no plastic under the head) are more likely to fail.
 
* These settings us a 0.35mm line with out of a 0.4mm nozzle, '''instead''' of all the other overlaps that contribute to PETG building up on the outside of the printhead.


==Cura 3 Settings for this Printer==
==Cura 3 Settings for this Printer==
Allen
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