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Friction-ant OR Anti Lubricant for Small Hinge

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  • Friction-ant OR Anti Lubricant for Small Hinge

    I am adding a "barn door" to my driveway light to prevent it from shining in my eyes when I pull in at night. It is on a photocell so it comes on as soon as I turn into the driveway. I have used a small brass hinge (3/4" wide) to attach it and I partially crushed the part of that hinge that surrounds the pin in the vise before attaching it. It was hard to judge just how much to mash it for the proper degree of friction and now, after I have attached it with pop-rivets, it is still a bit too loose.

    I need something to give it some more friction so it will stay in position in the wind and rain: kind of an anti-lubricant, lubricant. Any suggestions?
    Paul A.
    SE Texas

    Make it fit.
    You can't win and there IS a penalty for trying!

  • #2
    Pancake batter ... obviously.

    Comment


    • #3
      Have you thought of adding a setscrew of some sort? You don't move it often. Or a punch to simultaneously crush the tube while dimpling the shaft?

      Dan
      At the end of the project, there is a profound difference between spare parts and extra parts.

      Location: SF East Bay.

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      • #4
        What opens the barn door? I'd probably add a stepper motor controlled with an Arduino and multiple sensors to determine if you were on a bike or a car or if it was a prowler.

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        • #5
          how about a tooth pick? it should swell. or rather tap in something out of plastic.

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          • #6
            Rosin? Or maybe take some plastic from a bread package and jam it in the hinge pin?

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            • #7
              There is a silicone grease that is used to stiffen mechanisms.
              Helder Ferreira
              Setubal, Portugal

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              • #8
                sticky chain lubricant?

                I'd probably add some sort of brake mechanism, piece of springy brass strip dragging against other surface or similar.
                Location: Helsinki, Finland, Europe

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                • #9
                  My HAND opens it. This is not a complicated project.

                  I did mention this is a SMALL hinge - 3/4" is the largest dimension.



                  Originally posted by elf View Post
                  What opens the barn door? I'd probably add a stepper motor controlled with an Arduino and multiple sensors to determine if you were on a bike or a car or if it was a prowler.
                  Last edited by Paul Alciatore; 08-13-2020, 05:49 AM.
                  Paul A.
                  SE Texas

                  Make it fit.
                  You can't win and there IS a penalty for trying!

                  Comment


                  • #10
                    Sounds like what I want. What is it called? Where do I get it?



                    Originally posted by Noitoen View Post
                    There is a silicone grease that is used to stiffen mechanisms.
                    Paul A.
                    SE Texas

                    Make it fit.
                    You can't win and there IS a penalty for trying!

                    Comment


                    • #11
                      Simple, add a friction clutch to the hinge.

                      The large friction disks are pinned to the moving hinge leaf.
                      The small disks are keyed to the fixed pin and leaf, springs under load control the friction, ideally there would be a method of temperature compensation controlling the spring force.

                      You really should have known this.

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                      • #12
                        Originally posted by Paul Alciatore View Post
                        Sounds like what I want. What is it called? Where do I get it?
                        Search for 'damping grease'. It comes in a range of resistance values.

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                        • #13
                          You need an interference fit.
                          Make sure you use an adhesive to guard against rusting.
                          But for all that is holy, please don't use Locktite.

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                          • #14
                            Rubber sea mint.

                            -D
                            DZER

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                            • #15
                              Patience and rust.

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