Lower section on pole 2 series blocks

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  1. Lower section on pole 2 series blocks

    #1

    Hi guys,

    I am using the complete pole series 2 a lot (= several times a day, five days a week) these days, while mounted to a tripod.

    Which is quite a nice tool but also has a big annoyance.

    The lowest section with the biggest diameter is prone to blocking.
    Most likely due to wrong dimensions/tolerances of the two plastic "gliders" at the bottom.

    The situations where I use the pole are sometimes quite demanding and definitely not of the sort where one wants those things to happen. I now will try to find a way to "readjust" these parts but you might address this issue in your further development. Unless the one I'm using came with a failure from the factory, I'm under the impression that the forces working at the gliders and the guidance in the lower section are above what they were designed for.

    Cheers
    Jürgen
  2. #2
    Users Country Flag
    Join Date: Apr 2008
    Location: Hong Kong
    Posts: 2,418

    Hi Jürgen,

    Thanks for your feedback. Sorry to hear your the issue of your pole. The blocking/ locking can have many causes. Too tight a tolerance is one of them. We tend to keep the tolerance as tight as possible to increase rigidity of pole when extended. You can do this test to see if this is the reason for the blocking. Without any loading, is the lowest section extending / contracting smoothly? If not this is the cause and we have some simple fix and easy to follow procedure.

    Another reason of locking, esp at the bottom is due to the large bending torque exerted by the load on top. This is can be due to pole not being vertical, or due to load with center of gravity too far from the pole top plate, or simply overloading of pole. What is your rig on top? what the length of pole? This issue can be solved by keeping the pole vertical, used less extension for EACH section ( spreading reduction in extension to each section is better than reducing all length in one section). Another solution is to use dry lubricants.
    http://wd40specialist.com/products/dry-lube/
    http://www.finishlineusa.com/product...-plus-lube.htm
    http://www.crcindustries.com/ei/prod....aspx?id=03044
    I will look into ways to improve the smoothness of the pole under high loading. So any feedback will be greatly appreciated.

    Nick
    Last edited by nick fan; 12-10-2013 at 08:14 PM.



    Fanotec
    We listen. We try harder.
  3. #3
    Users Country Flag
    Join Date: Apr 2008
    Location: Hong Kong
    Posts: 2,418

    BTW, what is the temperature you are experiencing the locking?

    Nick



    Fanotec
    We listen. We try harder.
  4. #4

    Thank you Nick.

    Temperature is something around 25°-28° C

    I'm more under the impression that the blocking is due to tolerances being too high instead of too tight.
    Without load the pole works better though not perfect.

    When loaded it is mostly needed to twist the last section to make the gliders fit to the guidance as it. While twisting one must be very careful because it also can happen that the section completely jumps out of the guidance and then it is hardly possible to get everything back to where it belongs.

    All the upper sections move quite fine, even with the load. In the places where I'm working it is mandatory to keep the pole as level as possible, also because I mostly use it to it's maximum extend. So wrong CG should not the issue.

    I will try to find some dry lube.
  5. #5
    Users Country Flag
    Join Date: Apr 2008
    Location: Hong Kong
    Posts: 2,418

    How long and how frequent have you used the pole? Are the plates worn? You can remove the tube for inspection. if worn out, I can send you replacement. If indeed the tolerance is too high, you can tape a very thin film (eg PET) 3-5mm wide under the plates at the edge where they glide the tube. You can also apply a thin layer of lacquer or epoxy to thicken the tube under the plates.

    Nick



    Fanotec
    We listen. We try harder.
  6. #6

    So it seems it isn't a too high tolerance, at least not regarding thickness.
    When cleaning the inside some not so small kindlings fell out. It seems the nylon parts have been scraping the notches.

    However, I've cleaned everything and used a small amount of a silicon lube I had at hand, and at least in the office it slides much better now. Tomorrow we'll see ;-)
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