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Message from discussion M2 X&Y Micro switch shuts off board when sent to home
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Jay Couture  
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 More options Sep 7 2012, 10:49 am
From: Jay Couture <jay.cout...@gmail.com>
Date: Fri, 7 Sep 2012 09:49:38 -0500
Local: Fri, Sep 7 2012 10:49 am
Subject: Re: [MakerGear] M2 X&Y Micro switch shuts off board when sent to home
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When you plug the limit switches in backwards, you short the 5V power to
ground instead of the intended signal line to ground. This means no more
power to the Arduino and thus no more signal to the MOSFETs that control
the heaters. Also, not a good thing for the USB on your PC which may
potentially be supplying the 5 volts.

-Jay

On Fri, Sep 7, 2012 at 9:40 AM, DB_Daddy-O <dennis.b.mil...@zoominternet.net

> wrote:
> Hay Thanks that got me past that issuse.  Thried to print and everything
> was moving couldn't get it to feed or extrude, then it stopped and the
> extuder temp just started dropping.  tryied everything but a reboot of the
> PC doing that now!

>> Your limit switches are plugged into your electronics the wrong way
>> around.


 
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