Instructables

Making a Powerful Linear Actuator

Step 5: Put it together and your done

all you have to do now is to thread the outer casing on the the inner road and your done.

i have pictures of the threaded rod on its own in the casing which then can be put in to the chuck of the drill and used that way, but also of the one that can be used with the DC motor.

Some of you are saying to your selves "where does the petroleum jelly come in to it then" well i use this as a cheap grease, best thing i have found is to mount the rod on your motor or in the drill and get some petroleum jelly on your fingers and use the motor to spin the shaft slowly while you grease the rod, this will provide less friction on the rod when its spinning up and down on the nut and hopefully make it last longer and it wont squeak when its turning ;-)
 
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trey7101 year ago
Just curious. What would something like this lift. I'm wanting to lift about 30 lbs and i'm not sure if something like a drill will do that.
n1cod3mus (author)  trey7101 year ago
you might want to put it though a gear box first to get the torque, you could use a wheel chair motor, or washing machine motor.
n1cod3mus (author)  n1cod3mus1 year ago
you would also need a bigger thread and nut, as you dont want the thread to be stripped off. my one lifted about 5kg with out issues.
Thanks for the feedback. After I saw this I was digging around a bit more and found a scissor lift idea I liked.
In the end I'm trying to build a standing desk kind of like the Wallaby standing desk. I think I can take an old car jack, weld a pole to it vertically and place platforms on the pole. A simple drill attachment to the scissor jack would raise and lower my desk.
Another weekend project....
n1cod3mus (author)  trey7101 year ago
excellent, do you have the link to the scissor lift project as I too am building something which would be quicker and more stable with a scissor lift.
n1cod3mus (author)  n1cod3mus1 year ago
another idea might be to make a scissor lift.
boston75131 year ago
Wicked cool instructable I would not have thought it was so easy. I was thinking about how linear motors work before I did this search and I hadn't thought to do it this way Thank you!
n1cod3mus (author)  boston75131 year ago
no problem