bending stuffing tube

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  • okieman98
    Senior Member
    • Jan 2014
    • 229

    #1

    bending stuffing tube

    how does everyone bend there brass tubing. are there any vids out there. showing it done. are do i need to buy a tubing bender.

    thanks
    1 motley crew- under construction 2x shock wave 26-2 x surge crushers - 1 30' mono
  • Heath M
    Senior Member
    • Mar 2008
    • 806

    #2
    Tube bender is the easiest way. You can aneal the tube to soften it which makes bending easier as well. Personally I insert the Teflon liner and flex cable then bend it on a tube bender.
    Brisbane,QLD, Aussie

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    • JimClark
      Fast Electric Addict!
      • Apr 2007
      • 5907

      #3
      You can also get a longer piece of tube than you need and fill it with salt or sugar seal the ends then bend away.
      "Our society strives to avoid any possibility of offending anyone except God.
      Billy Graham

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      • TheShaddix
        Senior Member
        • Sep 2013
        • 759

        #4
        Or use a tube bending kit, you can get one on kintec. It comes with all the sizes you need. But definitely, as suggested above, heat up the tube and drop it in cold water right away before bending it. That will help avoid kinks. It will also discolor the tube which you can then sand & polish to mirror finish or just paint black.

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        • dasboata
          Fast Electric Addict!
          • Dec 2010
          • 3152

          #5
          2 thumbs & no softening works for me just go slow !

          Comment

          • tlandauer
            Fast Electric Addict!
            • Apr 2011
            • 5666

            #6
            Originally posted by okieman98
            how does everyone bend there brass tubing. are there any vids out there. showing it done. are do i need to buy a tubing bender.

            thanks
            What size tube do you need to bend?


            Most of my builds I only need 1/4" tube , it works for .150 cable with liner and .187 cable w/o liners.
            So far I found the easiest way for me is to use a discarded .187 cable and SLIDE a section of teflon liners THAT'S MEANT for .150 cable. Yes, you need to use soap to slide, but it will go on.
            With this, you push into the 1/4 tube and start bending. Most stuffing tube the radius is not extreme, so this works and always use a longer tube and so both hands and grab it securely. DSCN7741.jpg DSCN7742.jpgDSCN7744.jpg

            I have yet to aneal a tube, the bending tool kit works but you need to be careful, if not done carefully, it will flatten the tube around the bend ever so slightly.
            You can pack sugar into the tube and bend.
            Last edited by tlandauer; 05-13-2015, 06:43 PM.
            Too many boats, not enough time...

            Comment

            • okieman98
              Senior Member
              • Jan 2014
              • 229

              #7
              Originally posted by tlandauer
              What size tube do you need to bend?


              Most of my builds I only need 1/4" tube , it works for .150 cable with liner and .187 cable w/o liners.
              So far I found the easiest way for me is to use a discarded .187 cable and SLIDE a section of teflon liners THAT'S MEANT for .150 cable. Yes, you need to use soap to slide, but it will go on.
              With this, you push into the 1/4 tube and start bending. Most stuffing tube the radius is not extreme, so this works and always use a longer tube and so both hands and grab it securely. [ATTACH=CONFIG]131904[/ATTACH] [ATTACH=CONFIG]131905[/ATTACH][ATTACH=CONFIG]131906[/ATTACH]

              I have yet to aneal a tube, the bending tool kit works but you need to be careful, if not done carefully, it will flatten the tube around the bend ever so slightly.
              You can pack sugar into the tube and bend.

              it is a 6mm tube, .150 flex shaft from kintec with teflon liner
              1 motley crew- under construction 2x shock wave 26-2 x surge crushers - 1 30' mono

              Comment

              • okieman98
                Senior Member
                • Jan 2014
                • 229

                #8
                ok thanks everyone i will go slow and give it a try. and thanks for the photos it helps alot when u can see what folks are talking about
                1 motley crew- under construction 2x shock wave 26-2 x surge crushers - 1 30' mono

                Comment

                • ls1fst98
                  Senior Member
                  • Oct 2009
                  • 859

                  #9
                  anneal it and it makes it super easy to bend, just nice long radius until you get used to it and can work on tighter curves for things like water cooling pickups.
                  HPR 135 redemption, HPR C5009, modded zelos 36, 32 boats and counting.
                  Flier ESC dealer, pm me for details.
                  https://www.facebook.com/groups/EliteRCBoats/

                  Comment

                  • 785boats
                    Wet Track Racing
                    • Nov 2008
                    • 3169

                    #10
                    I'm with dasboata.
                    I've never heated tubes or used the sand, sugar or salt thing. I just install the liner & shaft into the tube & use the thumbs & fingers. I wrap some masking tape around the shaft to make it a tighter fit in the liner, or the tube if you're not using a liner. Just work your way along the bend a few times bending a little at a time.
                    K & S tubing is fine but that cheap thin walled chinese tube kinks very easily if you are not careful.
                    Last edited by 785boats; 05-18-2015, 03:22 PM.
                    See the danger. THEN DO IT ANYWAY!!!
                    http://forums.offshoreelectrics.com/...hp?albumid=319
                    http://forums.offshoreelectrics.com/...hp?albumid=320

                    Comment

                    • tlandauer
                      Fast Electric Addict!
                      • Apr 2011
                      • 5666

                      #11
                      Never heated them either, but, for those whio have heated the tube, how soft does it become? Is there a longevity issue?
                      I never heated mine because I thought it will make them weaker. I have been happy with my results but am curious as to how they fair.
                      Thanks in advance.

                      Sent from my D6708 using Tapatalk
                      Too many boats, not enough time...

                      Comment

                      • Heath M
                        Senior Member
                        • Mar 2008
                        • 806

                        #12
                        I use to anneal them when i first started out and never had any issues.
                        Brisbane,QLD, Aussie

                        Comment

                        • ls1fst98
                          Senior Member
                          • Oct 2009
                          • 859

                          #13
                          I've only annealed 3 or 4 total. Haven't noticed a difference in longevity. It's a big difference in Bendability. My latest build I didn't anneal them but also didn't need to bend very much at all.
                          HPR 135 redemption, HPR C5009, modded zelos 36, 32 boats and counting.
                          Flier ESC dealer, pm me for details.
                          https://www.facebook.com/groups/EliteRCBoats/

                          Comment

                          • tlandauer
                            Fast Electric Addict!
                            • Apr 2011
                            • 5666

                            #14
                            Thanks guys for the info. Much appreciated.

                            Sent from my D6708 using Tapatalk
                            Too many boats, not enough time...

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