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Inner radius of hardtube bends

Discussion in 'Watercooling' started by Vognen, 20 Apr 2018.

  1. Vognen

    Vognen Minimodder

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    I'm doing some loop planning, and in order to make everything look its best, I need to take tubing into account. I've searched a lot on the world wide web, but I can't seem to find any information.

    I'm going to be using 12/10 tubing. What's the smallest/tightest bend I can make without the tube collapsing on itself?
     
  2. TechnoMod87

    TechnoMod87 What's a Dremel?

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    probably 4-5 cm
     
  3. TheMadDutchDude

    TheMadDutchDude The Flying Dutchman

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    The tightest bend will only be possible with fittings, otherwise as above. I reckon you can get it a little tighter, but I’m not experienced with it.
     
  4. RedFlames

    RedFlames ...is not a Belgian football team

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    IIRC 2x the diameter of the tube is realisitcally as tight as you can bend most tubing without having to use mandrels or the like...
     
  5. Vognen

    Vognen Minimodder

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    Thanks a lot for the answers. I might have to look into buying some L-connectors then :)
     
  6. LePhuronn

    LePhuronn Minimodder

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    I 3D printed some mandrels to get a 16mm centerline radius out of 12mm acrylic tube because I need some ungodly tight bends but don't have the space to use 90 degree fittings. That makes the inner radius 10mm. I need to make a few tweaks to the design but it works for the most part.

    To get that tight though you need the bending cord inside to be very flexible. Originally I used 9.5mm diameter nitrile cord but in itself it doesn't bend tightly enough, so I swapped to some silicone fuel hose with (I think) a 3mm wall. That bends tightly.
     

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