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  1. #1
    Join Date
    Oct 2017
    Location
    Sydney
    Posts
    148

    Default Flip top Cart - safety concern ?

    Hi Guys,

    I am seriously considering building one of these flip top carts for my spindle sander and thicknesser.

    https://fixthisbuildthat.com/diy-fli...l-stand-plans/

    I am concerned that with the weight difference and no real control mechanism for the flip, it could turn out to be dangerous.

    Has anyone made something similar with machines of different weight?
    Any ideas on how to make it a little more safe or am I concerned about something that isn't an issue?

    Thanks!

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  3. #2
    Join Date
    Oct 2007
    Location
    Alexandra Vic
    Age
    69
    Posts
    2,810

    Default

    I think that there would be a fair weight difference between the items that he has installed on the one in the article, but there may be a bit more with yours, depending on the machines being installed.

    I believe that the unit built basically to that design bit with minor changes to dimensions to accommodate your machines would adequately carry the weight, but flipping may be difficult if their is significant imbalance in the machine weights. You could however easily add a tube that can accept a removable lever to aid flipping if needed, but I would want to be sure that all four casters had decent swivel and wheel brakes applied if you have to resort to using a lever, and making the cabinet deeper would help to ensure that the centre of gravity of the entire system stayed within the castor sets at all times to avoid tipping over midway through a flip.
    I used to be an engineer, I'm not an engineer any more, but on the really good days I can remember when I was.

  4. #3
    Join Date
    Jun 2009
    Location
    Elizabeth Bay / Oberon NSW
    Age
    76
    Posts
    934

    Default

    Quote Originally Posted by malb View Post
    I think that there would be a fair weight difference between the items that he has installed on the one in the article, but there may be a bit more with yours, depending on the machines being installed.
    Add to this the weight of any longer pieces of timber being fed through the thicknesser and you'd want to be sure that the axial security is very sound and each end of the wood is supported to ensure you don't shift past the centre of gravity.

    My other thought involves any dust, chips etc. which may fall into the drive mechanism when the machine is inverted. I'd be inclined to think about having two open ended shelves to place the machines with the heavier on the bottom. Sure, that makes two working heights but it still occupies a smaller footprint in the shed.

    mick

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