Recent content by Bongodrummer

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  1. B

    Advice needed on auto switch design

    Cool! Bit late I know, but haven't checked back in ages. Thanks for giving it a test - I am just getting round to building this, and it is nice to know it actually works. ;) Thanks for that.
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    Advice needed on auto switch design

    lol. Thanks, will let you guys know how it goes ;)
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    Advice needed on auto switch design

    Steve - yep, I guess you mean something like this: http://www.freepatentsonline.com/5099157.pdf. I had been considering it, but just wanted something that would turn on the vacuum extractor to full, regardless of any pwm speed control the tool might be doing. Militoy, Resqueline - Thanks a...
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    Advice needed on auto switch design

    Yep, cross posting did occur :o Thanks for the advice. Any specifics on how to orient the reed switch? Sounds like you actually put it inside the coil? I was expecting to position it somewhere on the outside. I guess I can just play about and fin a position where it is nicely closed?
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    Advice needed on auto switch design

    I was thinking I could make the coil myself as it wll be a low number of turns and just somehow glue a reed switch in place so that it is activated.. Might that work?
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    Advice needed on auto switch design

    Ahhh, some reassurance :D I had been scratching my head, drawing it out and trying to work out why it wouldn't work for ages... I think I will have to go ahead and try it, with some caution, of course :p Question: loosing 20W all the time is small fry, compared to the 1200W...
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    Advice needed on auto switch design

    Hi, thanks for the reply. I must admit I posted this on another forum as well :o, and there I was told that it would not work with the bridge rectifier in there. I don't really understand why not though. Like you say, as long as the coil was decent sized wire with low resistance... I guess...
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    Advice needed on auto switch design

    Hi Guys, I am quite new at this stuff and would really appreciate any views people might have on this design I have been thinking about for an auto switch. The auto switch itself is used to aromatically turn on my dust extractor when I use any hand power tools plugged into the auto switch...
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