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Thread: Electric Trim System

  1. #11
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    I got an email from one of my customers this morning. He has set up a trim system on his Dillon Mini Vee using a trim-tab actuator. He hasn't tested it on the water yet. I will update when I hear the results.

    Brent's project: http://www.dillon-racing.com/customerboats/Compton/
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  2. #12
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    Quote Originally Posted by Chairman View Post
    I got an email from one of my customers this morning. He has set up a trim system on his Dillon Mini Vee using a trim-tab actuator. He hasn't tested it on the water yet. I will update when I hear the results.
    Well if it does, he can count himself as lucky... Not say'n it can't, but its a poor design for several reasons.

    First is that trim actuators don't have a lot of force capability and this is mounted in a way that diminishes that. That is, it is angled away from the line of action, and you have to push like crazy to get any force applied to the motor. If it was much straighter it would be more effective. As it is, most of the force is wasted. It will probably jack inward easily, but it's going to have to work like crazy to to move the motor out when you are running.

    Second, it doesn't take a lot of travel to do the trimming. and mechaincal work is the force time the distance. Here you are minimizing the amount of travel, so it takes a lot more force to do the work. Using some type of lever assy (as the OP did) lets the cylinder travel more and allows you to gain force through the mechaincal advantage.

    With this short a travel it's going to be very touchy to find the correct trim position, if it works at all.

    Like I said, it might work, but it also may overload the actuator, and stall it, or it could just break the plastic end links on the actuator. Thost things just aren't designed to be used like this, if you want this kind of installation, get a real trim cylinder that can make big forces and go for it.

  3. #13
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    Default The direct approach

    Brent tested his system and reports that it "worked great!" He says he achieved 50 mph with a 30/35 OMC on his Dillon Mini Vee.

    http://www.dillon-racing.com/customerboats/Compton/
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  4. #14
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    Way to go, Brent! Tested mine yesterday and, though I had a ton of other problems, mine worked great as well.

    Jeff

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    Jeff, could you email the wiring diagram and any pictures for the relay setup?
    martin_spm@hotmail.com
    Thanks, Steve

  6. #16
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    Here you go. I used the switch alone for retracting since it's low load, but two relays (one for each wire + and -) for extend.

    Jeff
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