circuit to provide strong push/pull force?

[ben bitdiddle]

I'm looking to build a device that will need to exert a fairly significant
pushing and pulling force- it will need to pull up the hasp of a
combination lock(once it's unlocked). I've seen schematics online for a
device that uses some massive solenoids- does anyone know of a more
compact way to deliver a large force using a circuit? If solenoids are the
only way to go, recommendations would be appreciated. I'm not sure how
much push force I need yet, i'll need to hang weights on the lock hasp to
find out. Are there any reasons for getting just one push/pull solenoid
vs. two push or two pull solenoids? thanks for any advice.

 

[the Wiz]

ben bitdiddle <benb@tute.edu> wrote:

I'm looking to build a device that will need to exert a fairly significant
pushing and pulling force- it will need to pull up the hasp of a
combination lock(once it's unlocked). I've seen schematics online for a
device that uses some massive solenoids- does anyone know of a more
compact way to deliver a large force using a circuit? If solenoids are the
only way to go, recommendations would be appreciated. I'm not sure how
much push force I need yet, i'll need to hang weights on the lock hasp to
find out. Are there any reasons for getting just one push/pull solenoid
vs. two push or two pull solenoids? thanks for any advice.

How about a low speed gear motor with an arm on the output gear? The gear motor
can provide appreciable torque.

More about me: http://www.jecarter.com/
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Drivers for Pablo graphics tablet and JamCam cameras: http://home.earthlink.net/~mwbt/
johnecarter at@at mindspring dot.dot com. Fix the obvious to reply by email.

 

[Don Taylor]

ben bitdiddle <benb@tute.edu> writes:

I'm looking to build a device that will need to exert a fairly significant
pushing and pulling force- it will need to pull up the hasp of a
combination lock(once it's unlocked). I've seen schematics online for a
device that uses some massive solenoids- does anyone know of a more
compact way to deliver a large force using a circuit?

A small motor turning a threaded rod through a nut?

 

[Jamie]

explosive charge?


ben bitdiddle wrote:

I'm looking to build a device that will need to exert a fairly significant
pushing and pulling force- it will need to pull up the hasp of a
combination lock(once it's unlocked). I've seen schematics online for a
device that uses some massive solenoids- does anyone know of a more
compact way to deliver a large force using a circuit? If solenoids are the
only way to go, recommendations would be appreciated. I'm not sure how
much push force I need yet, i'll need to hang weights on the lock hasp to
find out. Are there any reasons for getting just one push/pull solenoid
vs. two push or two pull solenoids? thanks for any advice.

 

[dan]

What's that Lassie? You say that ben bitdiddle fell down the old
sci.electronics.basics mine and will die if we don't mount a rescue by
Fri, 09 Apr 2004 21:01:39 -0400:

I'm looking to build a device that will need to exert a fairly significant
pushing and pulling force- it will need to pull up the hasp of a
combination lock(once it's unlocked).

try electric car door lock actuators
--

Dan

 

[ddwyer]

In article <40f35ffb.11420077@News.Individual.net>, dan <me@privacy.net>
writes

try electric car door lock actuators
Agree; dont get your finger caught.

--
ddwyer

 

[Rok Sitar]

relay & powerfull supply

"dan" <me@privacy.net> wrote in message
news:40f35ffb.11420077@News.Individual.net...

What's that Lassie? You say that ben bitdiddle fell down the old
sci.electronics.basics mine and will die if we don't mount a rescue by
Fri, 09 Apr 2004 21:01:39 -0400:

I'm looking to build a device that will need to exert a fairly
significant
pushing and pulling force- it will need to pull up the hasp of a
combination lock(once it's unlocked).

try electric car door lock actuators
--

Dan