Base Assembly Microbarb Brass Inserts (Pi holes too tight)

Discussion in 'Build Help' started by Old_Tafr, Mar 9, 2016.

  1. Old_Tafr

    Old_Tafr Well-Known Member

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    All 3mm fitted easily using a small socket and long set screw used together as a puller.

    Choose a tiny socket where the head of the set screw does not quite pull into the socket hexagon (3/16" socket) with the square drive end against the acrylic.... works like a dream.

    Except, for the holes for the Pi these seem to be (although I didn't measure them) to be slightly too small and the Microbarbs inserts did quite fit flush.
     
  2. Stefan

    Stefan Well-Known Member

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  3. K3LAG

    K3LAG Active Member

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    The Pi barbs are supposed to be 2.5mm. If you used 3mm they would be tight. Most people have said the 2.5mm barbs actually fit just a little loose.
     
  4. Chase.Wichert

    Chase.Wichert Well-Known Member

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    Yeah the 2.5mm ones are loose, just have to hold them in place while starting the screw.
     
  5. Old_Tafr

    Old_Tafr Well-Known Member

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    Yes my mistake on the Microbarbs for the Pi. In this respect it would be handy to have packing lists for the bags of bits to indicate which are 3 and which 2.5 Anyone tried removing and refitting (in this case marginally smaller) Microbarbs?

    And it would be useful to put on the instructions here........

    http://wiki.e3d-online.com/wiki/File:Feet_microbarb.jpg

    which bag the various sizes are in............as is done on the drawings to such good effect.
     

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