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3DP Group 7 Proxy 2021 Build Thread

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  • 3DP Group 7 Proxy 2021 Build Thread

    Post your builds here.....Kevan has already given us a jump start on the initial thread.

    Show off the raw prints, the in-process finishing work, paint, and finished work. Chassis as well as bodies.
    Come Race at The Trace!
    Timberline Trace International Raceway - SW of Mpls, MN
    https://cults3d.com/en/users/chappyman662/creations

  • #2
    Nice one!

    ...the body is printing...
    Kevan - Isle of Man
    Life is like a box of Slot cars...πŸš“πŸš—πŸššπŸšœ

    Comment


    • #3
      Not sure which one I will use...... working on a Simoniz Lola T163 right now.......
      Come Race at The Trace!
      Timberline Trace International Raceway - SW of Mpls, MN
      https://cults3d.com/en/users/chappyman662/creations

      Comment


      • #4
        I've only got one for the list 917, waiting on some other files from Vlad to make my mind up . I did a test print of 917 and chassis , body's a bit too big to fit the chassis so I'll have to do another one to get things to fit properly .

        Comment


        • #5
          I've printed the BRM P167 and found some great photos for reference.

          By scaling this picture to the same width as my printed bodyshell those are 12mm wide tyres.

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          Kevan - Isle of Man
          Life is like a box of Slot cars...πŸš“πŸš—πŸššπŸšœ

          Comment


          • chappyman66
            chappyman66 commented
            Editing a comment
            Beautiful looking print, Kevan!

          • Kevan
            Kevan commented
            Editing a comment
            Until I draw up a chassis for my preferred sidewinder setup I don't know if 12's will fit, I doubt it, but inline should be possible. 12's will definitely fit in the body though.
            Yes it's printed pretty good! I've given the parts a coat of etch primer then a coat of white automotive paint I bought about 10 years ago for a VW camper van I had at the time.

          • Barc 1
            Barc 1 commented
            Editing a comment
            Very nice print. I am hoping for some success like that. Looks fabulous

        • #6
          Hi Rastas,
          ​​​​​​That is the wrong body for the CanAm.
          This is the early 917-10:
          ​
          Kind Regards
          Come Race at The Trace!
          Timberline Trace International Raceway - SW of Mpls, MN
          https://cults3d.com/en/users/chappyman662/creations

          Comment


          • Rastas
            Rastas commented
            Editing a comment
            Hi Chappy, ok sorry about that! I thought I had seen footage of the 917 K running in the can am sires on UTube. In that case would you be able to share the Nissan R382 with me thanks?
            Rastas.

          • chappyman66
            chappyman66 commented
            Editing a comment
            The proxy is for Group 7 cars.....mostly CanAm although several cars were built in Japan and other places as well.
            The Six Hours at Watkins Glen was followed by the CanAm race, and sometimes Group 4/5 sports cars ran in the CanAm as well, which is why people think of them as CanAm cars.....but they aren't Group 7 cars even if they raced with them. The 917-10 is undeniably derived from the 917, but it and the 917-30 were not legal in the same category as the 917Ks.

            And yes.....I will send you the Nissan file. πŸ˜‰

          • Rastas
            Rastas commented
            Editing a comment
            Great thanks for that πŸ‘.

        • #7
          I needed a 3rd hand to hold the body for spraying, this is some expanded plastic foam with a 'V' notch cut out and did the job just fine and took about 15 seconds to make


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          Kevan - Isle of Man
          Life is like a box of Slot cars...πŸš“πŸš—πŸššπŸšœ

          Comment


          • chappyman66
            chappyman66 commented
            Editing a comment
            Nice work, Kevan. Foam is cheap and easy.
            For what it's worth.....the addition of the printed exhaust/gearbox/suspension detail is the idea for the extra concours points.

          • Kevan
            Kevan commented
            Editing a comment
            Huge credit to the person who created these 3D files we can print, they did a grand job.

        • #8
          That would mostly be Nimrod, he has done fantastic work putting the files together.
          Come Race at The Trace!
          Timberline Trace International Raceway - SW of Mpls, MN
          https://cults3d.com/en/users/chappyman662/creations

          Comment


          • #9
            Chassis taking shape...might just squeeze 12mm's on.


            Click image for larger version

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            Kevan - Isle of Man
            Life is like a box of Slot cars...πŸš“πŸš—πŸššπŸšœ

            Comment


            • Kevan
              Kevan commented
              Editing a comment
              If anyone asks about the pacman shaped thing in front of the guide plate it's a datum block. I use the top surface when necessary and centerline faces to mirror chassis features...I quickly realised I needed a datum. I also draw a wheelbase block to line up the axles.

          • #10
            To those that have printed the Lola T160, what should the overall dimensions be? I found 1:1 dimensions and divided them by 32 but getting some weird measurements...

            Comment


            • Kevan
              Kevan commented
              Editing a comment
              Ultimate car page says the wheelbase is 2,388 mm which would be 74.6mm in 1/32.
              Track dimensions given will be to the centres of the tyre contact patch not overall width.
              Wheelbase / Track (fr/r) 2,388 mm (94 in) / 1,422 mm (56 in) / 1,295 mm (51 in). Wheels (fr/r) 9 x 15 / 14 x 15.
              So my reading of that is width across the front wheels would be 51.6mm and 51.6mm across the rears. Obviously not a huge Can-Am monster like some.

            • Rastas
              Rastas commented
              Editing a comment
              I came up with length 155.575mm , width 57.15mm , Hight 29.6863mm. for the Lola T160.

            • chappyman66
              chappyman66 commented
              Editing a comment
              Rastas,
              You are probably pretty close.....these early cars are much smaller than we think. We are used to pretty Fly cars but they kinda big.

          • #11
            Try downloading this, it's free and will all scale converting you need!

            Comment


            • #12
              I also have run the vernier caliper a supposed scale body and got. length 122.6mm, width 56.6mm, Hight 27.7mm. take your pick!LOL.

              Comment


              • #13
                1st print of he 712 in ABS ,not happy, 2nd print running as i write,chassis wise the DART 612 wb matches,maybe needs to move the guide a little back so half way there
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                Comment


                • chappyman66
                  chappyman66 commented
                  Editing a comment
                  Alexis, what layer height are you using?

              • #14
                Alexis, what do you think of ABS? How does it compare to petg.
                Kevan - Isle of Man
                Life is like a box of Slot cars...πŸš“πŸš—πŸššπŸšœ

                Comment


                • #15
                  I've not successfully printed a bodyshell on my latest printer, I tried with CF-PETG but the top layers were full of holes and the damned thing kept clogging. A shame really because the finish was superb.
                  When micro swiss offer a hot end upgrade for the Qidi I'll revisit fdm bodyshells.
                  Kevan - Isle of Man
                  Life is like a box of Slot cars...πŸš“πŸš—πŸššπŸšœ

                  Comment


                  • Rastas
                    Rastas commented
                    Editing a comment
                    What is petg Kevan? can it be smoothed like abs with the vaper trick? I've found that a worn nozzle will clog up ,put a new one in and everything runs smoothly again . It's worth the effort and money.

                  • Kevan
                    Kevan commented
                    Editing a comment
                    It's PET with Glycol, hence PETG.

                    It's a hardened nozzle and only had a few hours work, it definitely won't be worn. After sussing PETG I'd say maybe I wasn't giving it enough room to flow, 0.15mm nozzle to bed works, less than that doesn't always work.

                  • Kevan
                    Kevan commented
                    Editing a comment
                    No, you can't vapour smooth petg like abs.
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