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setup Polymaker Polyflex TPU95-HF


BorbelyG

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Posted · setup Polymaker Polyflex TPU95-HF

People think this technique is nuts but it works and everyone who tries it realizes that.  People are afraid to try it.  They think the oil will come out the nozzle and mess things up.  But the oil doesn't affect the prints.

 

Add a drop of oil to the filament before sending it through the bowden so that the bowden gets tiny drops all around.  Then if possible, unspool the filament so it is hanging down and add one drop which will slide down a meter or so.  Every meter of printing add one drop of oil.

 

Adding oil (any oil but you don't want it to go rancid so use any kind of light machine oil like "3-in-one".

 

Other techniques: print much slower.  I've printed TPU as slow as 10mm/sec.

 

Also set the feeder to the lightest pressure (indicator all the way up).  Otherwise it will underextrude.

 

Print on the high temperature end of the suggested range.

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    Posted · setup Polymaker Polyflex TPU95-HF
    41 minutes ago, BorbelyG said:

    . I could not print

    This is vague but I assume you mean not much comes out of the nozzle.  Other issues might be that the part is not sticking well.  If that is your issue then let us know. 

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    Posted · setup Polymaker Polyflex TPU95-HF

    Recommended printing conditions

    Parameter

    Nozzle temperature

    200 - 220 ( ̊C)

    Build Surface material

    BuildTak®, Glass

    Build surface treatment

    Applying PVA and PVP glue to the build surface

    Build plate temperature

    25 - 50 ( ̊C)

    Cooling fan

    Turned on from second layer

    Printing speed

    40-100 (mm/s)

    Retraction distance

    1-3 (mm)

    Retraction speed

    60 (mm/s)

    Recommended environmental temperature

    Room temperature - 45 ( ̊C)

    Threshold overhang angle

    40 ( ̊)

     

    Polymaker Factory settings Ultimaker S5 fails. Currently, printing works with the Ultimaker TPU settings. My question what I set incorrectly? Thx Gábor

    Képernyőfotó 2021-08-26 - 15.46.10.png

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    Posted · setup Polymaker Polyflex TPU95-HF

    Sorry for the inaccuracy, I'm still a beginner... Cura sends the following message: 

    Képernyőfotó 2021-08-26 - 17.52.18.png

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    Posted · setup Polymaker Polyflex TPU95-HF

    Oh!  The retraction speed is set to 60.  That is what gets the error.  45 is the maximum value for the S5 printer.  Just set the retraction speed to 45.  

     

    Maybe you don't know how to do that...

     

    So click "custom" as shown here:

    518561577_Screenshotfrom2021-08-2623-48-28.png.631e647872ea03519b139da6ba09188d.png

     

    Then enter the word "retraction" here and change it to 45.  Then you should be able to slice.

     

    2063962166_Screenshotfrom2021-08-2623-46-43.png.83944f7d5e208725ca5e7120104ab09d.png

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    Posted · setup Polymaker Polyflex TPU95-HF

    You may be better with the Ultimaker TPU profile.  They said something about 1-3mm of retraction for TPU but that's not enough for an S5.  That recommendation is for a direct drive extruder.  Ultimaker doesn't sell any printers with that type of extruder.

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    Posted · setup Polymaker Polyflex TPU95-HF

    I liked this information. Thank you so much.

     

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    Posted · setup Polymaker Polyflex TPU95-HF

    I also print the material. I use the Generic TPU profile for this.

    I recommend a 0.8 nozzle for TPU.

     

    Many greetings

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