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Bonding ABS to Aluminum?

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  • Bonding ABS to Aluminum?

    What's the best way to do this? I have an aluminum cradle for my iPad and want to bond it to the ABS bezel. I tried JB Weld yesterday with poor results.

    I have epoxy putty but haven't used it. This piece of ABS will likely expand/contract quite a bit. It's a bit flimsy and it sit in the sun on the dash.

    Is a better way to use a soldering iron to weld a plastic stud to the inside of the bezel and use that to anchor a small 'L' bracket, then rivet the bracket to the cradle?

    Or is there a good solvent to use to bond a plastic bracket, then drill a hole through the bracket and the aluminum and rivet/bolt them together?
    Originally posted by ghettocruzer
    I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
    Want to:
    -Find out about the new iBug iPad install?
    -Find out about carPC's in just 5 minutes? View the Car PC 101 video

  • #2
    most of the metal-to-plastic components i have seen usually screw/melt the 2 pieces together--it might be better to make the abs so the aluminum slides into it, and then using washers, or another band of metal, keeps the alum. from sliding up with the ipad...
    My OLD 2001 Mitsubishi Eclipse GT:
    "The Project That Never Ended, until it did"


    next project? subaru brz
    carpc undecided

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    • #3
      Glad to hear that's your recommended choice, because that's how I've chosen to do it!



      Aluminum frame is bolted to the bottom of the bezel, but the top is not yet attached. I'm thinking I'll use brackets and bolts/rivets about halfway up where there is a plastic wall I can put bolts through.

      At the top, I'll cut it off flush with the bezel, creating a slot-load for the iPad. I'll plastic weld something to the bezel inside and put a bolt through the aluminum sides and the plastic piece that's welded - or I'll use an L bracket and plastic weld it to the bezel and do the same.

      I'll fill in the sides with plastic and make a bezel, then file, fill, file, sand.

      I was thinking about wrapping it in carbon fiber wrap. Do you think that would look too ghetto? I was thinking it might hide a lot of sins!
      Originally posted by ghettocruzer
      I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
      Want to:
      -Find out about the new iBug iPad install?
      -Find out about carPC's in just 5 minutes? View the Car PC 101 video

      Comment


      • #4
        Glad to hear that's your recommended choice, because that's how I've chosen to do it!



        Aluminum frame is bolted to the bottom of the bezel, but the top is not yet attached. I'm thinking I'll use brackets and bolts/rivets about halfway up where there is a plastic wall I can put bolts through.

        At the top, I'll cut it off flush with the bezel, creating a slot-load for the iPad. I'll plastic weld something to the bezel inside and put a bolt through the aluminum sides and the plastic piece that's welded - or I'll use an L bracket and plastic weld it to the bezel and do the same.

        I'll fill in the sides with plastic and make a bezel, then file, fill, file, sand.

        I was thinking about wrapping it in carbon fiber wrap. Do you think that would look too ghetto? I was thinking it might hide a lot of sins!
        Originally posted by ghettocruzer
        I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
        Want to:
        -Find out about the new iBug iPad install?
        -Find out about carPC's in just 5 minutes? View the Car PC 101 video

        Comment


        • #5
          Here's another method that has worked for me that is used in manufacturing consumer products. Can be very strong if yo use a good size post.



          Sorry about the focus, but you can still see & understand the process.
          First, you attach (glue or weld) a post made of abs to the back of the item you want to attach the metal to. Drill a hole in the metal bracket the same size as the post.
          I have salvaged many posts both solid & hollow from the inside electronic equipment, they are used for spacing & fastening.
          Then, slip the bracket over the post & clamp it down.
          Last, melt the post down to secure both together. Kinda form a plastic rivet.

          You can also drill more than 1 hole in the bracket (to get a better bond), apply a generous blob of epoxy, then press the bracket into the blob of epoxy making sure you get a good amount of epoxy squeezing up through the holes. You can even add more epoxy on top of that to make it stronger.

          Depending on what you want to attach where, it may take a while to figure out and where to bend up the brackets. In the end you can finish up with a cleaner install since there are no screws or pop rivets showing.

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          • #6
            from the pics i have seen, that 3m carbon fiber wrap can look pretty good...

            i kind of think that it looks tacky to do very large radio bezels in different colors, or wraps then the rest of the car, but have seen plenty of cars that accent parts enough that it doesn't look bad..

            your beetle has a very similar dash as my eclipse-- both are heavily rounded, and the radio bezel also curves with the dash--meaning that if you were to only cf wrap the bezel, it would be like painting just your hood pink--out of place...

            now, if you wrapped most of the dash, i don't think it would look to bad...(of course, this is all my opinion though-- it is your car, so you can do whatever you want--even if it means painting your hood pink...)


            the other thing about wrapping something is that the surface has to be very close to paint-ready.. because most wraps have a glossy texture, they will show any imperfections on the workpiece-- very similar to glossy paint. just something to keep in mind..
            My OLD 2001 Mitsubishi Eclipse GT:
            "The Project That Never Ended, until it did"


            next project? subaru brz
            carpc undecided

            Comment

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