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fredz

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    Ultimaker 2+ retraction problems?

    in UltiMaker Cura

    Posted · Edited by Guest

    I am printing GCODE files from Simplify3D on my Ultimaker2+ (using Ultimaker 2 profile in Simplify3D). Printing generally works well, but I have some problems with retraction and blobs. I lowered the temp from 230 to 210 and changed extraction from 4mm to 5mm. Still I have some blobs. Below are the settings I use in Gcode. Can anyone recommend any changes? That would be awesome!

     

    ;   printMaterial,PLA;   printQuality,Medium;   printExtruders,;   extruderName,Primary Extruder;   extruderToolheadNumber,0;   extruderDiameter,0.4;   extruderAutoWidth,0;   extruderWidth,0.4;   extrusionMultiplier,1;   extruderUseRetract,1;   extruderRetractionDistance,5;   extruderExtraRestartDistance,0;   extruderRetractionZLift,0;   extruderRetractionSpeed,1500;   extruderUseCoasting,1;   extruderCoastingDistance,1;   extruderUseWipe,0;   extruderWipeDistance,2;   primaryExtruder,0;   layerHeight,0.3;   topSolidLayers,3;   bottomSolidLayers,3;   perimeterOutlines,2;   printPerimetersInsideOut,1;   startPointOption,2;   startPointOriginX,0;   startPointOriginY,0;   startPointOriginZ,300;   sequentialIslands,0;   spiralVaseMode,0;   firstLayerHeightPercentage,130;   firstLayerWidthPercentage,100;   firstLayerUnderspeed,0.3;   useRaft,0;   raftExtruder,0;   raftLayers,3;   raftOffset,3;   raftSeparationDistance,0.14;   raftInfill,85;   disableRaftBaseLayers,0;   useSkirt,1;   skirtExtruder,0;   skirtLayers,1;   skirtOutlines,2;   skirtOffset,4;   usePrimePillar,0;   primePillarExtruder,999;   primePillarWidth,12;   primePillarLocation,7;   primePillarSpeedMultiplier,1;   useOozeShield,0;   oozeShieldExtruder,999;   oozeShieldOffset,2;   oozeShieldOutlines,1;   oozeShieldSidewallShape,1;   oozeShieldSidewallAngle,30;   oozeShieldSpeedMultiplier,1;   infillExtruder,0;   internalInfillPattern,Rectilinear;   externalInfillPattern,Rectilinear;   infillPercentage,40;   outlineOverlapPercentage,15;   infillExtrusionWidthPercentage,100;   minInfillLength,5;   infillLayerInterval,1;   infillAngles,45,-45;   overlapInfillAngles,0;   generateSupport,1;   supportExtruder,0;   supportInfillPercentage,40;   supportExtraInflation,0;   denseSupportLayers,0;   denseSupportInfillPercentage,70;   supportLayerInterval,1;   supportHorizontalPartOffset,0.3;   supportUpperSeparationLayers,1;   supportLowerSeparationLayers,1;   supportType,0;   supportGridSpacing,4;   maxOverhangAngle,45;   supportAngles,0;   temperatureName,Primary Extruder,Heated Build Platform;   temperatureNumber,0,1;   temperatureSetpointCount,1,1;   temperatureSetpointLayers,1,1;   temperatureSetpointTemperatures,210,60;   temperatureStabilizeAtStartup,1,1;   temperatureHeatedBed,0,1;   temperatureRelayBetweenLayers,0,0;   temperatureRelayBetweenLoops,0,0;   fanLayers,1,2;   fanSpeeds,0,100;   blipFanToFullPower,1;   adjustSpeedForCooling,1;   minSpeedLayerTime,15;   minCoolingSpeedSlowdown,20;   increaseFanForCooling,1;   minFanLayerTime,10;   maxCoolingFanSpeed,30;   increaseFanForBridging,1;   bridgingFanSpeed,45;   use5D,1;   relativeEdistances,0;   allowEaxisZeroing,1;   independentExtruderAxes,0;   includeM10123,0;   stickySupport,1;   applyToolheadOffsets,0;   gcodeXoffset,0;   gcodeYoffset,0;   gcodeZoffset,0;   overrideMachineDefinition,1;   machineTypeOverride,0;   strokeXoverride,230;   strokeYoverride,225;   strokeZoverride,205;   originOffsetXoverride,0;   originOffsetYoverride,0;   originOffsetZoverride,0;   homeXdirOverride,-1;   homeYdirOverride,-1;   homeZdirOverride,-1;   flipXoverride,1;   flipYoverride,-1;   flipZoverride,1;   toolheadOffsets,0,0|0,0|0,0|0,0|0,0|0,0;   overrideFirmwareConfiguration,1;   firmwareTypeOverride,RepRap (Marlin/Repetier/Sprinter);   GPXconfigOverride,r2;   baudRateOverride,250000;   overridePrinterModels,1;   printerModelsOverride;   startingGcode,M907 E1400 ; increase extruder current,G28 ; home all axes,G1 X20 Y10 F3000 ; bring extruder to front,G92 E0 ; zero the extruded length,G1 Z10 ; lower,G1 E19 F200 ; purge nozzle quickly,G1 E26 F60 ; purge nozzle slowly,G92 E0 ; zero the extruded length again,G1 E-5.5 F400 ; retract,G1 X190 Z0 F9000 ; pull away filament,G1 X210 F9000 ; wipe,G1 Y20 F9000 ; wipe,G1 E0 ; feed filament back;   layerChangeGcode,;   retractionGcode,;   toolChangeGcode,;   endingGcode,G28 X0 ; home the X-axis,M104 S0 ; turn off heaters,M140 S0 ; turn off bed,M84 ; disable motors;   exportFileFormat,gcode;   celebration,0;   celebrationSong,Random Song;   postProcessing,;   defaultSpeed,3600;   outlineUnderspeed,0.6;   solidInfillUnderspeed,0.8;   supportUnderspeed,0.8;   rapidXYspeed,4500;   rapidZspeed,1200;   minBridgingArea,5;   bridgingExtraInflation,0;   bridgingExtrusionMultiplier,1;   bridgingSpeedMultiplier,0.5;   filamentDiameter,2.85;   filamentPricePerKg,46;   filamentDensity,1.25;   useMinPrintHeight,0;   minPrintHeight,0;   useMaxPrintHeight,0;   maxPrintHeight,0;   useDiaphragm,0;   diaphragmLayerInterval,20;   robustSlicing,1;   mergeAllIntoSolid,0;   onlyRetractWhenCrossingOutline,1;   retractBetweenLayers,0;   useRetractionMinTravel,1;   retractionMinTravel,0.02;   retractWhileWiping,0;   onlyWipeOutlines,1;   avoidCrossingOutline,0;   maxMovementDetourFactor,3;   toolChangeRetractionDistance,12;   toolChangeExtraRestartDistance,-0.5;   toolChangeRetractionSpeed,600;   allowThinWallGapFill,1;   thinWallAllowedOverlapPercentage,10;   horizontalSizeCompensation,0

     

    Good test print UM2+?

    in UltiMaker 3D printers

    Posted

    to me it looks like still a bit too much distance, but its hard to see. i usually use 0.2mm first layer, which gives a little nicer bottom surface compared to 0.3mm if leveling is good. Apart from that it looks much nicer than my stock UM2 :)

     

    Where do you change the distance?

    Printing via USB

    in UltiMaker Cura

    Posted

    The file must be written in chunks because the printer simply does not have enough memory. If you are writing to the sd card and it loses connection you can cause permanent damage to it. This is why you should always safely remove SD cards ;)

     

    We're talking about sending the file, via USB, to the SD card in the printer.

    Not sending it to the printer's memory.

    When it is completely uploaded to the SD card, it could then print normally, without having to move the SD card. The printer would just need some directory which it "watches", and when a file is completely on the SD, it could start printing.

    Would be a good addition and simple te execute.

    Printing via USB

    in UltiMaker Cura

    Posted · Edited by Guest

    If there is a connection fail while writing, your card is ruined ;)As the writing is a lot slower than doing it on the PC, there is a far greater chance of it going wrong.

     

    I don't know why you're saying that. If there is a connection failure, the file won't be written or will be corrupt. SD cards don't get "ruined" by anything like this, unless I am mistaken.

    Printing via USB

    in UltiMaker Cura

    Posted

     

    OK, the microcontroller has a small buffer, but it's not very difficult to program Cura in such a way, that it FIRST sends the complete file via USB to the SD Card in the UM, and only after this  the printing starts. Seems logical and simple to me... (but then again, I may be wrong)

     

    I don't think it's at all possible to do this. If it is possible, it will probably be very slow and will probably ruin your SD card in record time.

     

    Technically, it's possible. It won't ruin an SD card at all (one write of the file while sending, then one read of the file while printing). I suppose nobody has thought of it or everyone just likes swapping SD cards from computer to 3D printer ;-)

    Printing via USB

    in UltiMaker Cura

    Posted

    OK, the microcontroller has a small buffer, but it's not very difficult to program Cura in such a way, that it FIRST sends the complete file via USB to the SD Card in the UM, and only after this the printing starts. Seems logical and simple to me... (but then again, I may be wrong)

    where is the Ultimaker Store?

    in Buying or selling your UltiMaker

    Posted

    We are working hard to have our partners offer the same list of parts as what we have been offering through our webshop. So you will be able to order everything as you are used to, and parts that are not listed will have to be requested. Just like it was in the Ultimaker shop.

     

    You should have left the direct sales option. Once again, this is a bad decision. Probably just because you did not want to support your customers directly, a pity, for such a great brand.

    • Like 1

    Printing via USB

    in UltiMaker Cura

    Posted

    Running over USB means you have a computer involved which means you can use Repetier Host to control the printer which is a lot easier than using that wheely thing :).

     

    Does this work with UM2? Did you try it? How to set it up?

    Printing via USB

    in UltiMaker Cura

    Posted

    Why is printing via USB such a pain or "not a good thing to do"? We're 2016 now, and the recommended way is to physically take a SD card, put a file on it, then put it in the printer. Why is that? It seems so old fashioned and not needed. USB (even 2.0) is fast enough to transfer a file - why can't 3D printers do it properly that way?

    • Like 1

    where is the Ultimaker Store?

    in Buying or selling your UltiMaker

    Posted

    I found a good solution for the Ultimaker 2+: the online Apple Store is now selling them. They have stock, ship for free in every EU country within 24 hours, you can pay by credit card without a surcharge (try that at any dealer), there's a 14 days no questions asked return window. They know nothing about 3D printers, of course, but at least you know they have stock. And they are (a little bit) cheaper than all those dealers.

    http://www.apple.com/nl/shop/product/HJQG2ZM/A

    (replace the nl by your country in the URL; for Belgium it's /be-nl/)

    Only in Europe it seems.

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