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  1. #1
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    Filling holes in wood....then painting.

    It's pine wood derby time again and i have a question. Last year i had some product around the house that was left by a contractor, it was in a blue tube and I can't recall what it was called. I used it to fill the holes that i drilled into the car where i inserted weight.

    I remember the contractor told me it was "just like" window glazing but i know it didn't have that on the tube. It worked so well that i would like to use the exact same thing but can't recall what it was. Would wood filler work as well to fill a 1\4" hole?

    This stuff i used last year was perfect after i sanded and painted, you could never tell where the holes were. Any ideas?

  2. #2
    The Site Administrator: Currently at home recovering from a couple of strokes,please contact my assistnt admins for forum issues Tom Stormcrowe's Avatar
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    Wood Putty, Glaziers Putty, all manner of products.
    on light duty due to illness; please contact my assistants for forum issues. They are Siu Blue Wind, or CbadRider or the other 3 star folk. I am currently at home recovering from a couple of strokes. I am making good progress, happily.


    . “He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you.”- Fredrick Nietzsche

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  3. #3
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    Quote Originally Posted by Portis View Post
    It's pine wood derby time again and i have a question. Last year i had some product around the house that was left by a contractor, it was in a blue tube and I can't recall what it was called. I used it to fill the holes that i drilled into the car where i inserted weight.

    I remember the contractor told me it was "just like" window glazing but i know it didn't have that on the tube. It worked so well that i would like to use the exact same thing but can't recall what it was. Would wood filler work as well to fill a 1\4" hole?

    This stuff i used last year was perfect after i sanded and painted, you could never tell where the holes were. Any ideas?
    [sarcasm]

    I remember the Boy Scout oath as:

    On my honor I will do my best
    To do my duty to God and my country
    and to obey the Scout Law;
    To help other people at all times;
    To keep myself physically strong,
    mentally awake, and morally straight.

    I don't see the mention of parents doing Pine Wood Derby cars anywhere in there.

    [/sarcasm]

    OP, I don't mean this as a personal attack. When I read your post and say all the first person references, I got a good laugh -- remembering my Boy Scout days(shortlived as they were). Somhow Boy Scouts always became "Mostly Parent" Scouts.

  4. #4
    You Know!? For Kids! jsharr's Avatar
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    Why fill them? Aerodynamics means nothing at the speeds these cars move. Get the weight low and in the back of the car, get the car to 5 ounces, and polish the axles until they shine like chrome. And drill your own axle holes, using a drill press and a square body.
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    Quote Originally Posted by colorider View Post
    Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.

  5. #5
    Banned.
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    My car was the most aerodynamic, and shiniest car of the 30+ cars at the derby last year. I have read countless reports that say it don't matter, but we won, so I am figuring i will try and repeat the freak accident from last year.

    I also understand the notion that this is supposed to be built by the scout. But let me tell you what i witnessed last year. I didn't see one single car that could have been single handedly built by a 8 year old. No way, no how.

    I do remember a particular 8 yr old that remembered winning and had the biggest grin on his face that i have EVER seen. He also has spent the last year recounting that event. Granted he didn't build the car, but i let him help on the subtleties. And I can assure you that moment will stay in my son's mind for a LONG time.

    As opposed to the kids that were mad and rolling their cars on the pavement outside and watching them wreck after the event. I understand the sentiment, by saying that this should be a warm fuzzy experience between father and son, but in this day and age, allowing a kid to do all of the work and having his car so inferior to the father created cars ain't making anyone feel warm or fuzzy.

  6. #6
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    Don't fill the holes. Think dimples like a golf ball on the car's surface...
    sigless at the moment....

  7. #7
    Chepooka StupidlyBrave's Avatar
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    It isn't really about winning. It's about father-son time and collaborating on a project. If you want to be competitive, you should listen to jsharr. He is absolutely correct.

    Our first adventure involved me doing all of the cutting and rough sanding He did some of the finish sanding, the first coat of paint and selected the decals and told me where to put them.

    We had a wheel fall off during our race, but we won "Best of show" category !

  8. #8
    The quieter you become... Falkon's Avatar
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    Quote Originally Posted by root11 View Post
    Don't fill the holes. Think dimples like a golf ball on the car's surface...
    I see someone's been indoctrinated into the church of zipp.
    Quote Originally Posted by TechKnowGN
    San Jose has to be the most boring place I've ever been. And I live in Ohio.

  9. #9
    Senior Member Michigander's Avatar
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    Trick to winning a pine car race is to lube the wheels with some serious lubricant like tri flow or CLP. As I recall that's not allowed, but it sure works.

    As for wood filler, I've always used saw dust and wood glue.
    Bring back the Sig Test!


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  10. #10
    Senior Member FlyingAnchor's Avatar
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    I would enter the commander section of the race and did poorly, but I won the commander section for appearence. Mine was a blue boat.

    Steven

    And I think a rocket would propel you to victory. :Z)
    Dragging Anchor

  11. #11
    Support JDRF b_young's Avatar
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    Keys to winning at pine derby.

    Make the car as aerodynamic as possible.

    put the weight as far back as possible and to the max weight.

    use emory cloth and a drill and polish the axle.

    put the axle through the wheel and put it in the drill, hold the wheel and polish the inside dia of the wheel.

    Wheel alignment tools are cheap and make a huge difference. Once the wheels are straight, super glue the axle in place. But be careful that the glue doesn't run up the axle to the wheel.

    Read the rules and sand the outside of the wheels to get them smooth. I believe you are not allowed to change the shape and you have to leave most of the original finish. But smooth it as much as is allowed.

    Last put powder graphite on it and use the practice time they give you.

    Good luck.
    "Yesterday is history, tomorrow is a mystery, but today is a gift that is why it is called the present." - Kung Fu Panda

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  12. #12
    You Know!? For Kids! jsharr's Avatar
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    My son decided on the shape. I rough cut it on the band saw. He sanded and painted. Saw marks are visible and the paint is covered in streaks. I mounted my dremel in a bench top holder and he polished the axles. I did the file work. I did the measurements for weight placement holes. My son operated the drill press under my CLOSE supervision. My son cut the weights with a hacksaw and glued them into the holes we drilled. I measured and marked the new axle hole centers and drilled them, as a mistake here could disqualify the car if the axles are too far apart or the car sits too low. I can say our car is a true father/son car and I expect us as a team to do quite well. Either way, we did and will have fun with this project, so we win either way.

    Our troop is thinking of adding a DAD category, so that the Dad's that do want to build a car and race it can. I will be in that category, racing an unfinished block of wood with polished axles and at max weight if the category is created.

    Best of Luck to the Portis family and any of you other scout families.
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    Quote Originally Posted by colorider View Post
    Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.

  13. #13
    Support JDRF b_young's Avatar
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    My builds sound like yours. I won't let them cut there fingers off but I will let them do all that they can safely. We are not in the scouts but our church has a race every year with AWANA's. There are usually around 75-100 cars. One thing we do is go around the room and ask the kids to stand up and tell how much work they did vice their parents. The parents usually let the kids have a whole lot more to do with it after they get called out on it. We have a special catagory for the ones who obviously had no help.
    "Yesterday is history, tomorrow is a mystery, but today is a gift that is why it is called the present." - Kung Fu Panda

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