To polish axles, cut each paper into 1/4 inch strips, 3 inch long (there will be 16 strips per paper). Then fasten a drill in place using a Drill Mount, vise, or clamp. Insert an axle into the chuck of the drill, and start the drill. Use a file to remove the ridges on the axle head and shaft (if present).
How do you polish Pinewood Derby wheel and axles?
To polish axles, cut each paper into 1/4 inch strips, 3 inch long (there will be 16 strips per paper). Then fasten a drill in place using a Drill Mount, vise, or clamp. Insert an axle into the chuck of the drill, and start the drill. Use a file to remove the ridges on the axle head and shaft (if present).
Should I sand my Pinewood Derby wheels?
In the past, pinewood derby wheels had a mold mark on the wheel tread that had to be removed by sanding. The new wheels no longer have a mold mark. Sanding can still help by removing variations in the wheel circumference making the wheel rounder but sanding is no longer as necessary as it was.
How do you polish PWD axles?
Use polishing compound from the auto supply storeto polish the wheels and axles. One easy way to do this is to clamp the axles back in the drill and let the drill spin the axle while you polish it. 9. When you install the axles and wheels, make sure they are aligned perfectly straight.
How can I make my Pinewood Derby wheels faster?
- Put all of your weight in the back. …
- Lube the car at the body/wheel friction point. …
- Spend a fair amount of time on axle prep. …
- Make sure your wheels are ready. …
- Finally, once your wheels are mounted, check their alignment.
Are Bent axles legal in Pinewood Derby?
Bent axles are not allowed in either racing class. Although canted axles are allowed in both. A canted axle is straight throughout its length.
Do you glue Pinewood Derby axles?
7. Create Glue Holes: Glue the axles firmly in their holes to ensure that they stay perfectly placed, but make sure you don’t get glue on your wheels. 8. Add Weight: Remember to make your Pinewood Derby car as heavy as the rules allow.
Why does my Pinewood Derby car wobble?
Pinewood Derby Wheels Wobble are a very common issue. Derby wheels are made with an injection molding process. Because they are not machined from raw material, flaws such as concentricity (wobble) will cause a wheel to wobble because the bore is not aligned with the outer diameter. … No wheel mold is safe from flaws.
What is the best type of paint to use on a Pinewood Derby car?
We tested over 100 different paints and selected the ones that gave the best results on Pinewood Derby cars. These high gloss acrylic paints work best if no primer or wood sealer is used – Just sand and paint. All of our paints are water based. They are non-toxic and water wash-up.
Where do you put weights on a Pinewood Derby car?
Weight should be placed towards the rear of the car. You can drill the weight holes in the bottom, side or rear of the car as shown in these examples. Stay at least 1/8″ away from the axle slots.
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What is the fastest shape for a Pinewood Derby car?
But aerodynamics rule the day, and the best shape is a simple wedge. Just like a spoiler on the rear of a sports car, the wedge shape allows as much air to flow over the top of the car without hinderance while keeping the car pinned to the track.
Do aerodynamics matter in Pinewood Derby?
A more aerodynamic car (but very similar for other things) doesn’t give you much bang for your buck. Friction will get you. If you can reduce the coefficient of friction by just a little bit, it will make a noticeable difference. If you let your kids do most of the work, they will gain more than a win.
How much does paint weigh on Pinewood Derby car?
Re: How Much Does Paint Weigh Paint only adds a few grams (hundredths of a ounce). We generally weight up to 4.9 oz and then do the last weight adjustment at check-in.
Can you put weights on the bottom of a Pinewood Derby car?
The weight should not extend past the rear of the car. Glue bottom weights to the bottom of the block to bring the total weight (including wheels and axles) to 5 oz. Install some of the weight behind the rear axle and the rest in front of the axle. The weight can be broken apart with pliers.
What is the official length of a pinewood derby track?
Wood tracks are usually 32 feet long and aluminum tracks are 45 feet long. Alunimum provides a smoother surface than wood and is more durable. The advantage of wood is that you can usually scrounge up most of the material at low cost. The track should be about four feet high at the starting gate.
What kind of wood is used for pinewood derby cars?
Pine – Any of a variety of soft, light-colored woods used for pinewood derby kits. Ponderosa Pine – A soft western pine. Sugar Pine – A soft, western pine noted for a sweet smell. White Pine – A soft eastern pine.
Is graphite legal in pinewood derby?
Graphite-coatings on axles and wheels are legal as long as your race rules allow graphite or dry lubricants.
Can a pinewood derby car have 3 wheels?
Especially when using axle slots, it is often quite difficult to get all four wheels to touch the ground evenly. In fact, many times people end up with three-wheeled pinewood derby cars by accident! Don’t let your car design be accidental.
What is the best graphite for Pinewood Derby?
Pinewood Pro’s dry powdered PRO Graphite is a special blend of ultra-fine natural graphite with sub-micron molybdenum disulfide (also known as “moly”) additive to give you the best graphite blend to minimize friction and make your car the fastest it can be.
What is the best weight for Pinewood Derby?
The more your pine car weighs, the faster it will go on a downhill ramp. Most rules specify a 5 oz. maximum weight. Most Pinewood Derby cars weigh between 1.5 oz and 3.5 oz (depending on design) without weights so a car may need 3.5 oz or more of additional weight.
Do you need to prime pine wood before painting?
If you don’t seal pine with a primer, the first coat of paint will be blotchy, because pine absorbs paint (and other finishes) very unevenly. … If you omit the primer when you’re painting knotty pine, you’ll be able to see dark spots around every knot.
