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Re: (ET) Linear actuator

Title: Re: (ET) Linear actuator
I made one up a few years ago from a section of ball screw and an old windshield wiper motor from a ‘69 Chrysler.  I used it about 2 years and went back to the standard setup.  
A few things to consider:
  1. My setup was made out of a ball screw and while the motor would make the lift, it would not hold the load by itself. I had to add a brake to keep the blower from running back down. This may not be a problem with this particular unit if the mechanical advantage is there (runs slow?) or if it is made from a conventional screw.
  2. Also it was nice to have down pressure which you can get with the linear but you need to build in some “float” somehow.  I accomplished this by having the unit mounted in bracket that was slotted about 1.5” to allow the whole assembly to move up and down.
  3. My setup did not work for the mower so I had to switch lift types depending on the attachment. which was a bit of a pain and the main reason for me to stay with the standard setup.  With more thought I’m sure you could make it work with all attachments.

It looks interesting though.

Dean A. Stuckmann

If you didn't run it continuously, I'm sure it would work on 36... but then, if you aren't going to run it a whole lot, why not just tap 4 batteries for a nominal 24V?  I'm not sure how FAST this is either.... I did some thinking on a ball-screw lift and decided against it.
Larry Elie
-----Original Message-----
From: Jeff Tickner [mailto:JeffT softlanding com]
Sent: Monday, March 24, 2003 1:04 PM
To: elec-trak cosmos phy tufts edu
Subject: (ET) Linear actuator


Wow this looks pretty cool, think it would run on 36V? Load capacity of 1300#s. Seems like it could work a lot better then the front lift whihc seems to have a hard time with the snowblower
http://www.meci.com/default.asp?featured=true&partno=340-0001&mode=Search

I wonder what the travel time is

Jeff Tickner
Technical Support
800-545-9485, Ext 536
SoftLanding Systems

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