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Underextrusion at top left corner of bed


leonardo-aguiar

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Posted · Underextrusion at top left corner of bed

My guess would be higher friction in the bowden due to the more extreme curve on that position. It's basically why I made this;

https://www.youmagine.com/designs/ultimaker2-rail-system-u2rs

though this should probably not be necessary with a good feeder....

 

Nevertheless, using a PTFE Bowden tube 8-12" longer than OEM will reduce friction considerably.

Here's the stuff you want: http://www.amazon.com/gp/product/B00KJDE67G Also comes in 10" length.

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    Posted · Underextrusion at top left corner of bed

     

    My guess would be higher friction in the bowden due to the more extreme curve on that position. It's basically why I made this;

    https://www.youmagine.com/designs/ultimaker2-rail-system-u2rs

    though this should probably not be necessary with a good feeder....

     

    Nevertheless, using a PTFE Bowden tube 8-12" longer than OEM will reduce friction considerably.

    Here's the stuff you want: http://www.amazon.com/gp/product/B00KJDE67G  Also comes in 10" length.

     

    Some measured numbers for this reduced friction would be interesting. Are you referring to total friction or friction per length?

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    Posted · Underextrusion at top left corner of bed

    Total friction. You won't need numbers if you try it out - the difference is immediately obvious if you disengage the feeder drive cog and slide the filament into the tubing - much less friction.

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