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Cub Scout Pack 903
(Evanston, Illinois)
 
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Each spring, Pack 903 Scouts get to race cars that they designed and built, against each other!

Pinewood Derby kits, which consist of a block of wood, 4 axles, and 4 wheels are usually handed out at the December Pack Meeting.  Scouts are given two months or more to complete their cars.  For new builders, or anyone that needs help, there are always people available - just ask!

There are four awards that can be earned in our Pack:
1st Place (speed)
2nd Place (speed)
3rd place (speed)
Best Design (as voted on)

We generally have opportunities for the group to get together to build their cars.  However if the timing doesn't work out, you can always ask for help.  There are hand tools and paints available to borrow.  There is always someone that can help with any problems you run into.

How to Build a Pinewood Derby Car



The Pinewood Derby is a great experience for the kids.  They get to learn through trial and error what techniques work best.  Each year, their cars get better!

INITIAL DESIGN
Scouts can pretty much do anything they can imagine.  A good place to start is by typing "pinewood derby cars" into a search engine and viewing the images.  The kids can get a lot of ideas on shapes, characters, and colors. Also check out our Facebook page.  A lot of articles with tips are posted there.

The original car kit comes with the block of wood, 4 official axles, & 4 official wheels. You can purchase various add-ons at the Scout Stores (locations in Vernon Hills, Arlington Heights, & Chicago), Scoutshop.org, and Michael's Craft Stores (look online, there is almost always a coupon).

TEMPLATES
They don't to draw their design free-hand.  There are many templates available online.  They print it out, cut it out, and trace it onto the car block. Try this and this. You can also look at images of "pinewood derby templates" in a search engine.

THE NEED FOR SPEED
If your Scout is going for fast, here and here are some pro tips. 

WEIGHT
The total weight of the car, with its wheels, axles, add-ons, paint - everything, cannot exceed 5.0 ounces.  You can add weights to a car.  There are a variety of specialty weights that can be purchased.  You can also add everyday objects: small stones, coins, and washers for example.

FINISHING
There are all sorts of specialty paints out there, but you can also just use spray paint or cheap acrylics. 

WHEELS AND AXLES
This is usually the most challenging part of building the car.  You will want to make sure that any burrs are removed from both the axles and wheels.  This can be done with plain sandpaper.  You may also want to sand the area of the wheels that will touch the track.  The axles need to be placed just right so they don't rub against the wheel and allow it to move freely.  Axles also like to pop out of place.  You can put a dab of glue on them, but be careful the glue doesn't spread to the wheel at all.  You can also purchase an axle guard (also called axle keeper), which is a plastic piece that helps keep the axle where it should be.  Adding graphite powder helps the wheels move faster along the axle.  Here are some good photo instructions for axles and wheels.

CAR SPECIFICATIONS
At the race, cars have to go thru a check-in process where we weigh and check the cars.  Once they are checked-in, they have to stay at the judges' table and cannot be worked on.  In the event that a piece breaks during the race, you can try to fix that piece and re-join the race.
**Please note that rules are different for each Pack.  Information you find online, may not be the same as what is required for our track.
  • Width — 2 3/4?
  • Length — 7?
  • Weight — Not over 5 ounces
  • Width between wheels — 1 3/4?
  • Bottom clearance between car and track — 3/8?
  • Total Height cannot be more than 4 1/2"
GENERAL RULES
  • Wheel bearings, washers and bushings are prohibited.
  • The car shall not ride on springs.
  • Only official Cub Scout Grand Prix Pinewood Derby wheels and axles are permitted.
  • Only dry lubricant is permitted.
  • Details, such as steering wheel and driver are permissible as long as these details do not exceed the maximum length, width and weight specifications and are secured.
  • The care must be free-wheeling, with no starting devices.
  • Each car must pass inspection, the owner will be informed of the reason for failure, and will be given time within the official weigh-in time period to make adjustment.
  • After final approval, cars will not be reinspected unless the car is damaged in handling or in a race.
Finally - these cars are meant to be build by the kids - with an adult's help.  This activity is another opportunity for kids to learn new skills.  For example, kids shouldn't be using dangerous power tools, but they can mark the areas they want to be cut onto the wood, explain their design to an adult, and watch the adult cut the car.  They can sand, paint, and glue with their adult's supervision.  They get to watch their idea become real and take pride in all the things they did to make that happen.






Rules



RULES
Cars MUST always be built by the Scout to the best of their ability!!!!  For example, a Tiger Cub isn't going to be using an electric saw to cut his car - but he should still be choosing his own design, marking the lines on the wood block, watching how an adult cuts his car, sanding, painting and finishing his car, with supervision from an adult.  The Scout should always try first.  If he tries putting on the wheels and has trouble, then an adult can step in and show him how to do it.  Remember, THIS IS THE SCOUT'S CAR - not yours!  Don't deny them the opportunity and experience of building something.

Please note for the rest of the rules: if your Scout participates in another Pinewood Derby, the rules may be different.
Scouts must build a new car each year.  

Finished cars can weigh no more than 5.0 ounces.  This includes wheels, axles, paint, and any add-ons.  The unfinished block of wood weighs 5.0 ounces.

Wheels and axles must be or resemble the official BSA wheels and axles that come with the kits.  We don't care if you use a generic brand if you lose a wheel and need to replace it, but you can't use different designs.

The width cannot exceed 2 3/4 inches to fit on the track. 

The car must have 1 3/4 inches clearance between the wheels to fit on the track.

The height can be no taller than 5 inches to fit on the track.

The length cannot exceed 7 inches to fit on the track.

If you add something onto the car, make sure it is secure.  Cars can hit each other.



Here are our winners from previous years:

2017
1st Place: Luc
2nd Place:
3rd Place: Adrian
Best Design: Jaxson

2016
1st Place: Micha
2nd Place: Luc
3rd Place: Parker
Best Design: Yixuan

2015
1st Place: 
2nd Place: Parker
3rd Place: 
Best Design: Parker