Re: [CAD_CAM_EDM_DRO] Re: 4 Bar Linkages

4 bar linkages are everywhere, but people don't normally recognize them.
The parallel bar mechanism of an architect's style clamp on desk lamp is a
4bar. The typical hydraulic door closer on commercial doors is a 4bar.
The lift hinge on many auto hoods is a 4 bar. Most of the new "European
style" kitchen cabinet hinges are 4 bar. The lift of an accessory outboard
motor is 4 bar. If you can identify 4 hinges that all move in a linked
fashion, it's probably a 4 bar.

G. Jackson



At 05:04 AM 3/6/01 -0700, you wrote:

>Ballendo,
>
>You must have seen four bar linkages before. If you haven't look them up in
>some engineering text they are a fascinating study on their own. It is
>amazing the types of motion you can achieve with four bars of unequal
>lengths.
>
>Now for your four bar linkage method, after the fourth bar linkage was
>usually achieved but immediate separation was desired once you had sobered
>up :-))
>
>--Greg Nuspel
>
>Wingcraft the core of great models.
>http://www.wingcraft.com
>
>----- Original Message -----
>From: <ballendo@...>
>To: <CAD_CAM_EDM_DRO@yahoogroups.com>
>Sent: Tuesday, March 06, 2001 4:59 AM
>Subject: [CAD_CAM_EDM_DRO] Re: 4 Bar Linkages
>
>
>> Joe,
>>
>> 4 bar linkage. I don't know what this is, although I did provide a
>> guess :-)
>>
>> Ballendo
>>
>>
>> --- In CAD_CAM_EDM_DRO@y..., Joe Vicars <jvicars@c...> wrote:
>> > To what term were you reffering?
>> >
>> > ballendo@y... wrote:
>> >
>> > > Joe,
>> > >
>> > > This is a new term to me. What is it?
>> > >
>> > > Thank you in advance.
>> > >
>> > > Ballendo
>> > >
>> > > P.S. Sounds like my 20's, where the Friday night motion path was:
>> > > Go to the 1st bar, try to "come up with" linkage, Go to the 2nd
>> > > bar...
>> > > Eccentricities tended to enter the motion path at the 3rd and 4th
>> > > Bars, and "linkage" was never assured... :-)
>> > >
>> > > --- In CAD_CAM_EDM_DRO@y..., Joe Vicars <jvicars@c...> wrote:
>> > > > Can someone recommend a text, website, software, or any other
>> > > utilities
>> > > > for 4 bar linkages? I need a method of comming up with a 4 bar,
>> > > knowing
>> > > > the motion path.
>> > > > Thanks
>> > >
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>> Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the
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>> List Manager
>>
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>>
>
>
>Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the
>discussion of shop built systems, for CAD, CAM, EDM, and DRO.
>
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>List Manager
>
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>