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  1. #16
    Join Date
    Dec 2013
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    52
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    784

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    I looked today and alot of my stuff is accepted by airline, but hasn't moved.
    Other stuff in onroute to country etc but doesn't seem to move.

    I noticed I went to buy some wave washers from eBay today, some are saying the 7th of May till the 27th that's a long time. Where others are saying that it's the 17th April till June the 5th, but a $0.77 postage fee.

    I don't mind paying the postage fee, but have now been stung from paying an extra few dollars from AliExpress for the first time, and it took them so long to actually to get a tracking number.

    I am hoping that world would go back to the way it was, stay safe guys.
    Using Tapatalk

  2. #17
    Join Date
    May 2011
    Location
    Murray Bridge S Aust.
    Age
    68
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    4,602

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    Quote Originally Posted by Dave J View Post
    Saying that, about 20 days ago I bought limit switches, paid extra shipping for 13-20 days and they took 10 days to get a tracking number, so that didn't work.
    Can you post a pic of one, asking as I have a few here to get you out of trouble, if you can use them?
    Kryn
    To grow old is mandatory, growing up is optional.

  3. #18
    Join Date
    Dec 2013
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    52
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    Thanks, there just a standard HD type limit switches x4, not needing any arms or rollers etc as I'll make my own.

    I bought the blue cheaper plastic type limit switches a while back, but decided they where not heavy duty enough for what I'm using them for, a crane trolley F/R -lift/lower limits.
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  4. #19
    Join Date
    May 2011
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    Murray Bridge S Aust.
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    Sorry Dave, mine are just the little micro switches that you can find on stuff like microwaves etc.
    Kryn
    To grow old is mandatory, growing up is optional.

  5. #20
    Join Date
    Sep 2012
    Location
    North Yorkshire UK
    Posts
    3,651

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    Hi Guys,

    Is this the sort of limit switch you are looking for.

    Micro limit Sw.png

    There are two circlip positions on the shaft, one as shown and one behind the spring, depending upon which way you want to activate it. Pushed from the left as in the drawing. The whole thing is mounted on a thin (1 mm) thick aluminium plate, drilled and bent up so the operating shaft slides through.

    As far as getting stuff from China is concerned, I'm still waiting for the Honda ignition coil I ordered five weeks ago ! I've Emailed Banggood and they have replied, almost by return, that I have to wait for 40 days to claim non delivery. Their records show that it was sent the day after I placed the order and that it has arrived in the UK.
    Best Regards:
    Baron J.

  6. #21
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    Dec 2013
    Age
    52
    Posts
    784

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    Quote Originally Posted by KBs PensNmore View Post
    Sorry Dave, mine are just the little micro switches that you can find on stuff like microwaves etc.
    Kryn
    No worries and thank you, they seem to be moving slowly each day.
    There for a low overhead crane trolley and hoist l've been building. So need to be a bit more robust than the lighter weight type ones I had bought earlier.
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  7. #22
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    Dec 2013
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    52
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    This is the first type I bought, I used them on the mill combined gib locks, but seemed a bit light weight and sloppy for upper/lower and end stop limit switches for the crane.
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  8. #23
    Join Date
    Dec 2013
    Age
    52
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    Quote Originally Posted by BaronJ View Post
    Hi Guys,

    Is this the sort of limit switch you are looking for.

    Micro limit Sw.png

    There are two circlip positions on the shaft, one as shown and one behind the spring, depending upon which way you want to activate it. Pushed from the left as in the drawing. The whole thing is mounted on a thin (1 mm) thick aluminium plate, drilled and bent up so the operating shaft slides through.

    As far as getting stuff from China is concerned, I'm still waiting for the Honda ignition coil I ordered five weeks ago ! I've Emailed Banggood and they have replied, almost by return, that I have to wait for 40 days to claim non delivery. Their records show that it was sent the day after I placed the order and that it has arrived in the UK.
    Thanks mate, the places these are going this may have worked, but I wanted a more industrial type with a level arm and no wires exposed to have to cover, as most are carrying 240v.

    Same as on the mill I've used either linkages or custom arms with bearings.

    These limit switches all have good cord sealing, with either the standard rubber as pictured above on the blue ones, or cable glands like my first picture of the yellow ones.

    I will put up both projects once finished.
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  9. #24
    Join Date
    May 2011
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    Murray Bridge S Aust.
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    Quote Originally Posted by Dave J View Post
    No worries and thank you, they seem to be moving slowly each day.
    There for a low overhead crane trolley and hoist l've been building. So need to be a bit more robust than the lighter weight type ones I had bought earlier.
    Wouldn't mind seeing some pics of it when it's done, PLEASE. Is it the single pivot type of crane, or one that runs along a set of parallel rails?
    Kryn
    To grow old is mandatory, growing up is optional.

  10. #25
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    Dec 2013
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    52
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    Just a sneak peek picture because you asked, and we all need to see pictures in lock down. Well at least I do, lol

    Just a jib crane similar to my other one I built 10 years ago, only this one is bigger and longer.
    This one is made from 200UB 29kg/mtr beam 3.2m long.

    It's been up since a few days before Christmas, but have been working on the remote control trolley and hoist.

    I'm only rating it at 500kg as it's only for my mill and lathe, but the crane is built to well over 1000kg going from manufacturer's beam sizes.

    Using Tapatalk

  11. #26
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    May 2011
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    Murray Bridge S Aust.
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    NICE, should do the job very nicely.
    Kryn
    To grow old is mandatory, growing up is optional.

  12. #27
    Join Date
    Sep 2012
    Location
    North Yorkshire UK
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    Hi Dave, Kryn, Guys,

    I first used that limit switch design over 40 years ago for a goods lift across three levels, and the cage door detection. At the time I built them into die cast alloy boxes. The firm that I did the work for used microswitches on their products, much bigger ones, but still rated at 10 amps. I might still have a couple kicking about.

    The drawing I posted uses the more modern ones, like Kryn mentioned out of microwave ovens. They are very effective and very reliable.

    I also did a rotary one which used a plastic disc with a notch cut out and attached to an arm. I later modified it to use a magnet and hall effect sensor so it could be used with a 5 volt logic controller. The microswitches become unreliable when used for low voltages and almost zero current.
    Best Regards:
    Baron J.

  13. #28
    Join Date
    Jul 2014
    Location
    melbourne
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    81

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    hi guys, if you can please try not to source items from china, i know it will be more expensive but it's better to pay a bit more and buy from australia and other countries than give hard earned to the chinese, after what they have done to ours and the western world's economies, take a bit of extra time buying australian made owned products if you can cheers all

  14. #29
    Join Date
    Jul 2010
    Location
    Melbourne
    Posts
    8,415

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    Quote Originally Posted by dodge at4 View Post
    hi guys, if you can please try not to source items from china, i know it will be more expensive but it's better to pay a bit more and buy from australia and other countries than give hard earned to the chinese, after what they have done to ours and the western world's economies, take a bit of extra time buying australian made owned products if you can cheers all
    No

  15. #30
    Join Date
    Feb 2020
    Location
    Albury
    Age
    54
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    74

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    Quote Originally Posted by dodge at4 View Post
    .... take a bit of extra time buying australian made owned products if you can
    Noble idea ..... but ..... I find it very difficult to find any tooling that's actually made in AU. Most Australian based businesses import their products from China. Unfortunately, over the past few decades China has become the factory of the world, manufacturing poor quality as well as top quality products for the western world.

    Let's hope the current crisis triggers a major re-think of our long term manufacturing strategy.

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