Inexpensive linear actuator
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Posts: 46,084
Colleagues,
I need to make a mechnism, which acts like a small forklift. The
trave of the fork is 10 inches. I'm looking for a linear actuator, of
a worm gear. The actuator will have only two positions - top and
bottom, so DC motor plus 2 limit switches will suffice. Do you have
an idea where to get, or how to make such thing?
Thanks!
Sincerely,
Nick
I need to make a mechnism, which acts like a small forklift. The
trave of the fork is 10 inches. I'm looking for a linear actuator, of
a worm gear. The actuator will have only two positions - top and
bottom, so DC motor plus 2 limit switches will suffice. Do you have
an idea where to get, or how to make such thing?
Thanks!
Sincerely,
Nick
Comments
wrote:
> Colleagues,
>
> I need to make a mechnism, which acts like a small forklift. The
> trave of the fork is 10 inches. I'm looking for a linear actuator,
of
> a worm gear. The actuator will have only two positions - top and
> bottom, so DC motor plus 2 limit switches will suffice. Do you have
> an idea where to get, or how to make such thing?
>
> Thanks!
>
> Sincerely,
> Nick
Hi Nick,
I think I can help you out, but need to know a few things.
how much power do you need (how much weight are you lifting ?
personal safety issues ? (humans being lifted need at least 2
setperate mechanical safety devices.)
Since this if off topic, maybe we should e-mail direct ? we can send
post back to the group if this is desired. I know I always like to
see projects.
First thought is a lightweight (under 500 pounds?) unit that would
use a timing belt. these are geared tooth belts. and using a
screw. one could put a pully on the end of the screw and then spin
it with a motor. the pully offers rations for higher torque, and the
screw stops a falling.
For really light loads, (under 10 pounds) one could use the same type
of belt, but just attach it to the stage. when the motor spins, the
belt lifts the stage directly.
for heavy loads, or personal safety or such, a worm gear platform
would work and would not be hard to do.
Lots of ways. Give me some ideas, and I'll send you some ways to get
it done.
Dave
kender_a@y... writes:
Colleagues,
I need to make a mechnism, which acts like a small forklift. The
trave of the fork is 10 inches. I'm looking for a linear actuator, of
a worm gear. The actuator will have only two positions - top and
bottom, so DC motor plus 2 limit switches will suffice. Do you have
an idea where to get, or how to make such thing?
Thanks!
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
One possible inexpenise solution that will use a DC motor is to go to a junk
yard and find a power seat motor with it's worm gear / track mechanism. You
will need to install your own limit switches, easily accomplished with opto
interuptors.
[noparse][[/noparse]Non-text portions of this message have been removed]
selling surplus satellite positioners. Very heavy duty and much cheaper
than building something.
> I need to make a mechnism, which acts like a small forklift. The
> trave of the fork is 10 inches. I'm looking for a linear actuator, of
> a worm gear. The actuator will have only two positions - top and
> bottom, so DC motor plus 2 limit switches will suffice. Do you have
> an idea where to get, or how to make such thing?
center). Window motor mechanisms and electric seat adjuster mechanisms may
be just what you need and may be obtained for a couple of dollars especially
if you use parts from cars that are not the most popular or new.
jim
http://www.geocities.com/jimforkin2003/
Original Message
From: Bill Boyer [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=Zl7-Ma7HbJrFOeab5SxF53VHIR9ROytJLDVaRB4rRCZ4efGlSIGyzM-vF7Mpbiv_1yA_Hrv6v41m]daweasel@s...[/url
Sent: Monday, September 08, 2003 11:15 PM
To: Basic Stamp List
Subject: Re: [noparse][[/noparse]basicstamps] Inexpensive linear actuator
Some of the junk / salvage / surplus places like Marlin P. Jones are
selling surplus satellite positioners. Very heavy duty and much cheaper
than building something.
> I need to make a mechnism, which acts like a small forklift. The
> trave of the fork is 10 inches. I'm looking for a linear actuator, of
> a worm gear. The actuator will have only two positions - top and
> bottom, so DC motor plus 2 limit switches will suffice. Do you have
> an idea where to get, or how to make such thing?
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Nut's and Volts Magazine had a good, simple and low cost linear actuator
project profiled last year. I remember it as a 2 or 3 issue article that
used a small dc motor, threaded rod shaft and square brass box tube.
Good Luck,
Chris Dundorf
<<<>>>
Colleagues,
I need to make a mechnism, which acts like a small forklift. The
trave of the fork is 10 inches. I'm looking for a linear actuator, of
a worm gear. The actuator will have only two positions - top and
bottom, so DC motor plus 2 limit switches will suffice. Do you have
an idea where to get, or how to make such thing?
Thanks!
Sincerely,
Nick
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yard today for $30. It has 3 worm gears, and 2 motors.
Nick