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Our 2020 Lava Car

Discussion in 'Pinewood Derby Pictures' started by karlaj, Nov 10, 2020.

  1. karlaj

    karlaj Pack Champion

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    Hi! First post!

    This was my son's car this past year. We got alot of positive feedback on the design, and solid performances at the pack and district levels. It was a monster to build, and tuning was tough because the wood warped so much from the center trench. (but it made picking the raised axle easy!)

    Hope you enjoy it as much as we have! PWD_2020_VK_crop.jpg
     
    Eric Scheid likes this.
  2. Mojo Racing

    Mojo Racing National Contender Pro Racer

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    Karl, that car is way cool looking. I bet it was a beast and a half to tune.

    One recommendation I would have moving forward with your next build... less clear stuff up front. You are breaking a light beam for the finish line, so I would use a solid colored piece.

    On this car, maybe if the lava flow started more toward one of the corners of the nose, preferably the NDFW.

    Very cool looking though. Great job!
     
  3. karlaj

    karlaj Pack Champion

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    Thanks Mojo!

    I thought about the epoxy being clear, but the finish gate wasn’t any problem bc I scuffed up the front, so it always triggered. That definitely got tested ahead of time, and I had a little painters tape on hand to put underneath just in case.
     
  4. HurriCrane Racing

    HurriCrane Racing PWD Royalty 25+ Pro Race Wins! Pro Racer National Champion

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    A red vinyl covering on the bottom might be an option.
    Nice looking car.
     
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  5. Wookie77

    Wookie77 Hammering Axles

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    Awesome looking car, my son and I have been going back and forth about trying to use epoxy as he wants all 3 trophies this year. Pack, den, and creative..
    The heat cause the warping?
     
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  6. karlaj

    karlaj Pack Champion

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    Thanks! and go for it! We got “judges choice” for this and took the pack title. Maybe your pack is faster, but we usually go plenty fast for our group.
    Warping —Partly the fire to char, but the wood block was pre-stressed. As soon as I cut in it to shape the channe, it twisted. The epoxy didn’t do anything, I poured it in two layers.
    I have no advice other than take your time and make 3-4 car bodies to start and carry n-1 forward each step in the build. Enjoy the adventure!
     
  7. Wookie77

    Wookie77 Hammering Axles

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    N-1 =nicest one? Never played with epoxy so yeah should be fun if he decided that's the way he wants to go...
    Thanks
     
  8. karlaj

    karlaj Pack Champion

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    go for it! It’s a little tricky at first, but you’ll pick it up quickly.

    Sorry, that’s engineer-speak. N-1 is basically start with N cars (4?), and at each major step, leave one behind in case you screw up and have to redo things. In our case, we cut 4 bodies, charred 3, epoxied-filled 2, and finished 1.
     
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  9. Wookie77

    Wookie77 Hammering Axles

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    Wow... That's allot of work for one car...
     

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