DIY Car MountAccessories

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  1. as329

    as329 Well-Known Member This Topic's Starter

    Jun 19, 2010
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    After searching forever for a mount, I decided to build my own. I just got done breaking the prototype and rebuilding a new one, so I figured I'd share. The prototype (which wasn't intended to be a prototype, but since it fell apart within a week, that's what I'm calling it) worked pretty well, this one came out much better so I think it'll will work even better.

    This is what it looks like, below is how I built it.


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    So I needed a mount that would go into my lighter because I live in hell and the heat kills suction cups. They have just never worked for me. But all the mounts I found that went into the lighter were generic and I wanted a sure fit. So I got one of these fitted mounts from deal extreme, which have been posted on here before I'm sure.

    DealExtreme: $5.50 Plastic Car Swivel Mount Holder with Suction Cup for HTC EVO 4G - Black

    Then, I got one of these. From the comments on Amazon, it doesn't look like it plays well with every car, so check your out before ordering. They are kinda wide, but offer two lighter chargers and a usb charger, which I liked.

    Also, the first one I bought was not as tight and well built as the second one. I don't know if I got a fluke with either.

    When I got the mount, I ripped off the suction cup by just twisting the base...the glue broke fairly easily. (I also broke the glue at the other end, you may just want to go ahead and break the seals, then re-glue with the adhesive of your choice, as I am sure it will be of better quality). I was left with the metal rod and black plastic covering on the bottom. I trimmed about five links of the plastic covering off (helps for a later step).

    Essentially, I built a wooden plug to fit into the top lighter charger port on the three way charger noted above. I stuck the metal from the mount into the plug and the plug into the charger as follows:

    I went and got a 7/8th inch wooden dowel from the hardware store (it's four feet long so you'll get plenty to make what you need, which is about an inch). This is slightly too thick so you'll need to whittle it down. I used a dremel to sand off about a 1/16 of an inch (or less). Shaving it down is much easier to do before you make the cuts I will tell you about in a second, so just go ahead, and shave it before you cut it to size. You only need about an inch of dowel, and you'll want it slightly thicker at the top (the lighter ports are somewhat tapered). Keep checking the fit by placing the dowel into the top port of the three way charger BUT DO NOT FORCE IT IN! You want a snug fit, but if you start tugging and pulling to get the plug out while checking the fit, you will rip up the internal electronics and won't be able to charge (go ahead, ask me how I know this).

    Once you have the dowel shaved down to where it fits, but comes back out, go ahead and mark the depth and cut that piece off. You should end up with a piece about an inch or so long.

    Drill a hole through the center. I used a 13/64th bit and the fit was pretty good.

    Use the adhesive of your choice (I am sure some of you know much more about this that I do, I used liquid nails because I have a sh!tload leftover from a job a I did a while back. Something else might work better and if you know it, please share.) to seal the metal rod into the hole and the plug into the lighter port. If you didn't trim a few links off the plastic, it may act as a spring and push the metal out of your dowel, you want it to be able to rest in the dowel pretty deep and without pressure while it cures, which is why I trimmed it off (again, another lesson learned from my prototype).

    Let it cure and set for a while (overnight) and it should hold pretty good. If you drilled a hole completely through the plug, you may want to be sure that the metal rod is not touching the bottom of the port - may screw something up. I just filled the bottom with adhesive anyway.

    There you have it. Feel free to ask questions if I didn't describe it well enough. I have a few pictures from the process as well that'll I'll post if anyone wants to see. I like this because I can charge with usb and still have a port available. I may mount an fm transmitter to the next one I build for my wife's car. The holster part also has a hole for the camera, so if your mount is high enough, you can record your driving (which may or may not be a good idea depending on how you drive).

    YMMV - the 3 way plug may not work for all cars. Secondly, I did notice on my prototype that with the phone's weight, the whole mount could twist a bit on turns. I think that was because the 3 way plug didn't fit well the first time, but I'll update once this new one is all set and I use it tomorrow. Just play with it, and drive cautiously for the first few miles to make sure it all works before trusting it fully.

    lesk likes this.

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