Results 1 to 8 of 8

Thread: Linear Actuator?

  1. #1
    Raw Wave kickercivic1's Avatar
    Join Date
    May 2003

    Question Linear Actuator?

    HI guys i am working on this project and i am trying to get my amp move in and out just like drawers. And i was looking to get Linear Actuator. Anybody have any idea where to find them cheap. I am looking to get like 4 of them.. help thank you.

  2. #2
    Constant Bitrate
    Join Date
    Sep 2002
    Austin / Houston TX
    Hmm. How much throw do you need? In other words, how far do you want your amp(s) to move? Most actuators in car doors travel 1-2" (AFAIK) so I don't think you will find many at the traditional car stereo type stores.

    Are all of your amps in a row? What ab out connecting them together in the back and then sliding them out with a motor. You can use a cam so that if the motor stays on it will cotinually slide the amps in and out. Actuators would slide the amps out...but it would be in one explosive move.

    No Carputer YET.
    A car I'm designing...

  3. #3
    Raw Wave wizardPC's Avatar
    Join Date
    Jun 2000
    if you find em cheap, lemme know--the ones you are looking for I find for like $400-$1200 dollars each.

    Aaron once suggested using a power antenna, just remember that they can't handle a large load
    Debt as of 1/1/05: $34,354.48
    Debt as of July 4, 2007: $0.00 explanation
    I'm now a reasonably successful gunblogger.

  4. #4
    Join Date
    Jul 2003
    San Diego,CA
    Yeah these linear actuators can get pretty expensive especially if it has a stepper motor. I'm looking for some motorized actuators like the ones that are in motorized indash lcd units. Anyone know where I can get a hold of them? I want to do a motorized lcd screen that will come out of my glove box.
    Shuttle xPC w/ Athlon 2400+
    512MB ddr266
    GeForce4 128MB agp video
    250GB WD SE
    USB2.0 DVD/CD-RW slim drive
    7" Xenarc TSV touchscreen
    PAC Audio AUX input module
    Opus 150W PS
    iGuidance usb GPS
    RF keyboard/mouse
    Mobile Media Center

  5. #5
    Constant Bitrate cafn8's Avatar
    Join Date
    Mar 2003
    New Jersey, US

    A DIY alternative..


    I'm not sure how cheap you're looking to get it for, but recently at work we were working on a design for a lifting mechanism capable of lifting about 150lbs or so.This was intended to be a low-cost alternative to its competition, so it may be similar to what you need. The difference, of course, is the amount of load on the mechanism (unless the amps that you want to move will be mounted to a sub box, which might be cool too.)

    Anyhow, the mechanism slides on a drawer slide (ours is very heavy duty, but yours won't have to be.) It's driven by a DC gear motor, which turns a screw. The screw threads into a nut which is attached to the "Drawer" By reversing the voltage to the motor, it slides in and out. There will be a cut-off switch at the inner and outer limits of the travel.

    For a better description of what I'm describing go to and search for "acme screw." I'm not sure if individuals can buy from there, and if you can it would most likely be pricey, but you could probably rig up a similar mechanism from parts from Home-Despot and Radio Shack. The only expensive parts will likely be the motors, although I don't know where to get those. Hope this is a step in the right direction.

  6. #6
    Join Date
    Jun 2002
    Grundy, Va
    As WizardPC said, linear actuators arnt cheap, you can get them form mcmaster carr
    or grainger
    <edit> you can also get acme screws, ball screws, and lead screws from here theise will allow you to basically build your own linear actuator</edit>

    You are still going to have to do the slide thing, or make some type of guide for the amps, IF you need 4 different ones you may want to look at penumatics, evean with the air tank and the valves needed, it may be cheaper than the linear actuator, and you can control the speed of the amps position them anywhere thru their range of motion.. and you gotta love the cool pssssssssht sound!!

    Filip you are thinking of door lock/shaved door soloniods(sp) or actuators, a linear actuator operates much slower than those little speed deamons and has much more power.
    Justin Stiltner
    Truck :1993 Ford Ranger Splash 4.0L
    System : Pioneer HU and Factory replacement speakers
    Puter :Pentium OCed to 133Mhz and win 95 with a whistler power inverter and crystalfontz 20x4 lcd(soon to be motorized) and winamp
    Comms Gear: Cobra 25WXST, K40 whip, Silver Streak 175, Radioshack Hyperscan Pro-2045
    95 Mitsubishi Eclipse RS: FOR SALE!!! $4000
    95 Egeal Talon Tsi AWD: Project car boostin 15 psi.

  7. #7
    Constant Bitrate
    Join Date
    Apr 2006
    Saint Petersburg, FL & Flint, MI & Auburn, NY
    I know this thread is basically dead but I'm just throwing this out there. You could also have a DC rotary motor attached to the back of the amp that has a gear attached. The guide/rails on the sides would have to have teeth. That way when the motor rotates it uses the toothed rails to create linear motion. That's a much cheaper way to do it.

    Just make sure the teeth on the rotary gear will roll through the linear rails without getting stuck.

    1996 Accord Ex Carputer

    Soon to come 2008 WRX 5-door Mac-carputer.

  8. #8
    It ain't easy being a green moderator meddler's Avatar
    Join Date
    Aug 2002
    Steps out the front of Henson's workshop or Sydney
    Dead! it's nearly 5 years old
    Never let the truth get in the way of a good story


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts