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Wheel polishing lathe

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    Wheel polishing lathe

    I wanted to polish the lips on my RS before they get new tires. I was considering rigging up the motor and belt drive from either my old table saw or planer, but then I thought, "hey, I already have a spinning hub perfectly built for rotating these rims." I jacked my ix fully off the ground, put it in 3rd, and let it idle. Dangerous? Yeah, maybe. Effective? Yep, definitely. Used 1500 grit wet sand. I should have removed the tiny bolts, but retorquing all 120 is a pain. I might do it the next go around in 2 years though.


    AWD > RWD

    #2
    I like it. Work smart, not hard.
    2014 Alpine White 335i MSport
    (Daily Driver)
    Full Mperformance Aero

    2007 Black Sapphire Metallic E92 335i (6MT)
    KW V2 Coilovers
    VRSF Catless Downpipes

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      #3
      ...and don't stick your finger in there!

      hee

      t
      now, sometimes I just mess with people. It's more entertaining that way. george graves

      Comment


        #4
        Didn't leave a million parallel scratches on there?

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          #5
          Originally posted by LateFan View Post
          Didn't leave a million parallel scratches on there?
          wet sanding with a fine grade (1500+) sandpaper?
          2014 Alpine White 335i MSport
          (Daily Driver)
          Full Mperformance Aero

          2007 Black Sapphire Metallic E92 335i (6MT)
          KW V2 Coilovers
          VRSF Catless Downpipes

          Comment


            #6
            Lol sweet should finish with 2000 grit and then get a polishing wheel for a cordless drill or angle grinder and some compound and make them bitch'ss shine! then do the final polish with aluminum polish like normal what i did with my oz turbos and its incredible

            Here how mine finished



            1989 325is l 1984 euro 320i l 1970 2002 Racecar
            1991 318i 4dr slick top


            Euro spec 320i/Alpina B6 3.5 project(the never ending saga)
            Vintage race car revival (2002 content)
            Mtech 2 turbo restoration
            Brilliantrot slick top "build"

            Comment


              #7
              Hmm, pretty good results. Didn't catch a finger did you?


              Originally posted by ThatOneEuroE30 View Post
              Lol sweet should finish with 2000 grit and then get a polishing wheel for a cordless drill or angle grinder and some compound and make them bitch'ss shine! then do the final polish with aluminum polish like normal what i did with my oz turbos and its incredible
              Bro, punctuation matters.

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                #8
                i rigged up an old bench grinder motor to my style 5s, but I would do it your way the second time around. not enough torque to keep em spinning when applying pressure to do the sanding. i did remove the bolts so that the finish would match behind them, then used double stick tape to hold the face to the lips when spinning.

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                  #9
                  Originally posted by ST1G View Post
                  Hmm, pretty good results. Didn't catch a finger did you?




                  Bro, punctuation matters.

                  For that st1gy. I give you this badge



                  1989 325is l 1984 euro 320i l 1970 2002 Racecar
                  1991 318i 4dr slick top


                  Euro spec 320i/Alpina B6 3.5 project(the never ending saga)
                  Vintage race car revival (2002 content)
                  Mtech 2 turbo restoration
                  Brilliantrot slick top "build"

                  Comment


                    #10
                    I have 2000 grit, but I wasn't going to take the time for another round of sanding with the bolts still in there. I will give it a swirl with a drill powered polisher abs aluminum polish once they're installed.
                    AWD > RWD

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                      #11
                      Here's an instructional video if you want to take your lathe to the next level or if you've just had a few Molsons and want some old fashioned Canadian entertainment.


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                        #12
                        I did the same thing with a set of E21 weaves I put on a MK2 jetta I had. Used a grinder with a flap disk first to take off all the rash, then sanded them nice and smooth. Worked great.

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                          #13
                          I'm gonna do this in a few weeks when I get new tires. Gotta take the old ones off or pull the valve stems though. The last time I tried it the valve stem came around and beat up my fingers, every stupid rotation...:( I hit the PO's curb rash good though!

                          3rd seems like a decent gear, and if the jack drops it or whatever, the m42 has no chance in hell of moving the car anywhere
                          -Christian

                          '02 ///M3 CarbonSchwartz 6MT daily beast
                          08/91 Mtechnic II 325IC alpine/lotus
                          318iS, slow build/garage queen...
                          '37 Chevy pickup, the über project
                          Originally posted by roguetoaster
                          Be sure to remind them that the M42 is one of the best engines ever made, but be sure to not mention where it actually falls on that list.

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                            #14
                            I polished mine by hand. At the final it was 2000 grit.

                            Projects Hartge,Alpina & AC Schnitzer Builds.http://www.r3vlimited.com/board/showthread.php?t=280601
                            http://www.r3vlimited.com/board/showthread.php?t=227993
                            http://www.r3vlimited.com/board/showthread.php?t=289362

                            DSC04926 by Raul Salinas, on FlickrDSC03413 by Raul Salinas, on Flickr

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                              #15
                              I did a similar thing.

                              Lorin


                              Originally posted by slammin.e28
                              The M30 is God's engine.

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