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  1. #31
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    Quote Originally Posted by BobL View Post
    It looks like there is already HV and LV inside the box?

    FWIW LV power supplies are also cheap as chips when bought in bulk. I do use old odd wall warts that cost nothing in many of my electrical/electronics but that's not my main point. Existing wall warts can also be a easily installed inside a box.
    Attachment 468116
    In this example the 9V Wall wart powers an Aduino and unless portability is needed this is how most of my LV projects are done. In continuous high current draw situations heat dissipation may be an issue but I assume any high current draw only occurs when opening and closing the gates?


    Makes Sense.


    Good idea.
    Bob I see a major issue with that arrangement. Have you ever felt how hot those 12V units get? No air circulation to cool it will only make matters worse.

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  3. #32
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    Default Great work

    Congrats gents looks brilliantbrava bravaand if I see my way clear there might just be an order put forward.

  4. #33
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    Quote Originally Posted by wheelinround View Post
    Bob I see a major issue with that arrangement. Have you ever felt how hot those 12V units get? No air circulation to cool it will only make matters worse.
    Depends entirely on the magnitude of and time period over which the current is drawn.

    I assume the draw is only when the gates are being activated open or closed?
    In that case its few seconds and then nothing for while.
    In my case as shown in the photo the current is ~50mA continuous and pulsing to 120mA occasionally no problems with heat. If its more than this I put some vents in the box.

  5. #34
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    Any progress on the website. I've mention these to 2 mens shed and they would like to be able to peruse a website.

  6. #35
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    Quote Originally Posted by BobL View Post
    Any progress on the website. I've mention these to 2 mens shed and they would like to be able to peruse a website.
    Thank you for spreading the word Bob but I’m afraid we’re still working on it. Engineering seems to be easier than word crafting?
    a rock is an obsolete tool ......... until you don’t have a hammer!

  7. #36
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    Apr 2013
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    Nowra
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    Awesome work guys, looks like a quality product. I'll be following with interest to see more about the auto start addition for DC.

    FYI the pricing in your initial post seems incorrect. In the last para you quote the price as $281 for the 150mm gate with auto controller but that doesn't seem right $326 - 5% is about $310. perhaps you were quoting the manual controller?

  8. #37
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    Good catch, there was some initial confusion when I did the first post, use the table of prices and ignore the final paragraph price. Out of interest what sort of ducted system do you have? Is it powered by a cyclone?
    CHRIS

  9. #38
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    Quote Originally Posted by BobL View Post
    Any progress on the website. I've mention these to 2 mens shed and they would like to be able to peruse a website.
    Quote Originally Posted by fletty View Post
    Thank you for spreading the word Bob but I’m afraid we’re still working on it. Engineering seems to be easier than word crafting?
    The website is being proof read as we speak. So far the proof reading team have found one technical error, 2 typos and 4, yup FOUR, misplaced apostrophes! I think it will be nice for a website about a labour of love being launched on Valentines Day?
    a rock is an obsolete tool ......... until you don’t have a hammer!

  10. #39
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    Haha well it's a work in progress, as is my entire shed, so I'm in no rush.

    I've recently moved into a place with a 6x9m shed, but we also had a baby two weeks later so there's been little progress setting it up. I actually need to prioritise the work i do, firstly as I've just discovered this week - I need to dig some drainage trenches around it to prevent it flooding

    In answer to your question therefore - my Hafco DC7 (no cyclone) is currently just hooked up directly to the TS/thicknesser with a length of 100mm flex hose until I can prevent flooding, in order to clad the walls and start installing ducted 150mm piping, which is when I'll be looking at blast gates.. probably quite a while off!

  11. #40
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    Ladies and gentlemen, mates, drinking buddies and fellow woodies (and many of you fit in to at least 4 of those categories!), we announce to you the WORLDWIDE release of the website spawned in this very forum.....

    https://autoblastgates.com.au/

    It is a bold venture, as Sir Humphrey would have said, but we are committed to helping make our workplaces a safer place.
    a rock is an obsolete tool ......... until you don’t have a hammer!

  12. #41
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    Great! - have posted it on the WA Mens shed FB page.
    Hope you get some enquiries.

  13. #42
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    Good stuff Chris, well done

  14. #43
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    A really well designed website. Well done and best wishes for a bright future.

    mick

  15. #44
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    Quote Originally Posted by fletty View Post
    It is a bold venture, as Sir Humphrey would have said,
    I believe Sir Humphrey's words would have been something about the venture being courageous




    and now that we're on a new page, the website's address is Auto Blast Gates PTY LTD
    regards from Alberta, Canada

    ian

  16. #45
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    May 2011
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    Melbourne
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    In talking with Chris over the last few weeks, I put an order in for a 15A, 150mm blast gate. I teach Design and Tech and the blast gate for our drum sander is around 2m off the ground. Students often forget about it plus they can't reach it easily. It seemed the perfect spot for a gate that opens itself. I had looked at the iVac system but it seemed you had to buy controllers that went with it and the cost was quite pricey.

    I installed it this afternoon and it works as expected. As soon as the machine is turned on, the gate opens. When it's turned off, the gate takes a few extra seconds to turn off. Next up is to tidy up a few wires and it's all good to go.


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