linear actuator?
 

im looking for something to use to push up one end of a 7" LCD display and i
thought id use a linear actuator. Only problem is that all the linear
actuators I look at are huge, push 1000 pounds, and go way too far. Is
there anything else i could use that is small and inexpensive to get the job
done?

Matt (in ) said:

| im looking for something to use to push up one end of a 7" LCD
| display and i thought id use a linear actuator. Only problem is
| that all the linear actuators I look at are huge, push 1000 pounds,
| and go way too far. Is there anything else i could use that is
| small and inexpensive to get the job done?

How about using a small gearmotor to drive an allthread leadscrew with
limit switches at the extremes of movement?

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/solar.html

more data please. a 7" lcd is pretty small. there ought to be a bunch
of possible solutions to your need.

does it need to be decorative?
how much travel do you require?
how must it be activated?
what are you building?

mebbe a spring loaded hinge, blum self closer type?

An electric door lock actuator for an automobile.


"Matt" wrote in message
om...
im looking for something to use to push up one end of a 7" LCD display and
i thought id use a linear actuator. Only problem is that all the linear
actuators I look at are huge, push 1000 pounds, and go way too far. Is
there anything else i could use that is small and inexpensive to get the
job done?

"Matt" wrote:

im looking for something to use to push up one end of a 7" LCD display and
i thought id use a linear actuator. Only problem is that all the linear
actuators I look at are huge, push 1000 pounds, and go way too far. Is
there anything else i could use that is small and inexpensive to get the
job done?

Years ago there was a line of small automation type cylinders that would
work if they are still made.

They were 1" bore, some used a spring to extend the rod, then you would
pressurize the rod end to retract the rod.

There were lots of other options but I have been away this kind of stuff
for a long time.

HTH

Lew

"Matt" wrote in message
om...
im looking for something to use to push up one end of a 7" LCD display and
i
thought id use a linear actuator. Only problem is that all the linear
actuators I look at are huge, push 1000 pounds, and go way too far. Is
there anything else i could use that is small and inexpensive to get the
job
done?

Grainger has light duty electric linear actuators, I used one in a similar
circumstance.......mjh

On Fri, 08 Jul 2005 03:38:29 GMT, the opaque "Matt"
clearly wrote:

im looking for something to use to push up one end of a 7" LCD display and i
thought id use a linear actuator. Only problem is that all the linear
actuators I look at are huge, push 1000 pounds, and go way too far. Is
there anything else i could use that is small and inexpensive to get the job
done?

"Small" + "inexpensive" should never be used with "linear", Matt. ;)

Forget Leon's solenoid idea. It has a 1" range and is instantaneous,
far too quick for raising that much mass even if it could.

Try www.surpluscenter.com , search for "linear". For $35, the
#5-1437 looks like it'd work for you with a rail/lever system.
Try again next week and there may be more to choose from.

It takes Burden -days- to ship, so plan on 7-10 days overall, UPS.


-
Press HERE to arm. (Release to detonate.)
-----------
http://diversify.com Website Application Programming

"Matt" wrote in message
om...
im looking for something to use to push up one end of a 7" LCD display and
i
thought id use a linear actuator. Only problem is that all the linear
actuators I look at are huge, push 1000 pounds, and go way too far. Is
there anything else i could use that is small and inexpensive to get the
job
done?



The actuator I got from Graingers is shown on my web page
http://www.members.tripod.com/mikehide2/ . Look under desks and check the
large desk with the leather paneled top . there is a shot of the elevator
mechanism I built , the electric actuator is clearly shown in the center.
The linear actuator has an electric motor which drives a screw jack with
about 12 + inches of travel if I recall....mjh