Alt-BEAM Archive
Message #09714
To: beam@sgiblab.sgi.com
From: "Sathe Dilip" sathe_dilip@bah.com
Date: Wed, 02 Feb 2000 16:21:00 -0500
Subject: [alt-beam] Re: Simplest motor reverser
On similar lines, modifying a pushbutton switch may be easier for
controlling the operating force. You may have seen such switches as
band-change switches on some radios. These typically have a helical
spring directly wrapped around the spindle that also acts as the mount
for the button. There is usually a circlip like piece holding the
spring in place. By removing the circlip it is easy to replace the
spring with a weaker (Customized/hand wound) spring to suit the purpose.
These switches also come in PC mount versions. Feelers could be used as
levers to gain mechanical advantage or the switches themselves can be
used as "bumpers"
Dilip
Ben Hitchcock wrote:
>
> All,
>
> I was thinking today about creating another little photovore, and realised
> that I could implement a circuit I designed when I was interested in radio
> control. This circuit reverses two wires - and the only component is a
> switch!
>
> I've seen this circuit crop up a number of times independantly - it's a very
> simple solution to a very common problem.
>
> To add this circuit to a photovore, I would suggest making an extension to
> the toggle switch. Wrap some wire around the switch handle, and make it
> into a 'feeler'. This should increase the leverage on the switch to make it
> easier to turn on when you bump into something.
SNIP
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A conclusion is the place where you got tired of thinking.
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9715 Wed, 2 Feb 2000 13:24:19 -0800 [alt-beam] Re: The 240 microcore - was Bicore question "'beam@sgiblab.sgi.com'" Wilf Rigter
A snafu crept into the original post: the diodes were shown backwards
Attached find the corrected 240 ucore drawings.
Sorry for the inconvenience.
regards
wilf
<<240UCOR1.gif>> <<240UCORE.gif>>
> -----Original Message-----
> From: Wilf Rigter [SMTP:Wilf.Rigter@powertech.bc.ca]
> Sent: Tuesday, February 01, 2000 7:46 PM
> To: 'beam@sgiblab.sgi.com'
> Subject: The 240 microcore - was RE: Bicore question
>
> And they said it couldn't be done!
>
Attachment: 240UCOR1.gif
Attachment: 240UCORE.gif
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