What is an axle guide

Pro Axle Guide is a precision C.N.C. machined aluminum block with a laser cut tab designed to fit in the axle slot of most P.W.D. race car bodies. The tab is designed to precisely space the wheels from the body. … The proper gap minimizes car wander and reduces excess contact between the car body and the wheel hubs.

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.

Where is the best place to 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.

What size is a #44 drill bit?

The #44 drill bit (.086 inch OD) is the standard bit used for nail axles from Cub Scout kits and other kits. It can be used to drill axle holes, or to create pilot holes in the standard axle slots.

What is considered a fast Pinewood Derby time?

Pinewood Derby Results. The average times with just weight added was 3.288 seconds. There was 0.188 seconds between the fastest and slowest car, about 23 inches. The average time was 2.994 seconds, about 44 inches faster than without graphite (0.353 seconds).

How do you attach a Pinewood Derby axle?

1. Lubricate the wheel and axle – Slide the axle into the wheel. …
2. Place the wheel/axle on the base with the pointed end of the axle up.
3. Place the Axle Guide in the axle slot. …
4. Hold the Axle Guide in place with your thumb then gently press the car body straight down on the axle.

What is Pinewood Derby train?

Riding the rail stabilizes the car as it runs down the rail, which allows you to bias the center of gravity further back. So instead of COG being 1.25″ in front of the rear axle, you can get away with 1″ or even a little less.

Should I bake my Pinewood Derby block?

Should I bake the pinewood derby block? The short answer is no, do not bake the block. The idea behind baking the block is to remove moisture which will make the block lighter. … Baking might remove more moisture but the block will quickly re-absorb the moisture after it is out of the oven and cooled down.

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.

How can I make my Pinewood Derby wheels faster?

1. Put all of your weight in the back. …
2. Lube the car at the body/wheel friction point. …
3. Spend a fair amount of time on axle prep. …
4. Make sure your wheels are ready. …
5. Finally, once your wheels are mounted, check their alignment.

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What is the best 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.

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.

What size is drill F?

DrillInchmmF0.2576.53G0.2616.63H0.2666.76I0.2726.91

How do I know what size drill bit to use?

1. Use a bit 1/64” smaller than the target hole size for softwoods.
2. Use a bit exactly the same size as the hole when working on other materials.
3. If you’re not sure which to select, choose a drill bit 1/64” larger than the hole you wish to create.

What size is #20 drill bit?

SizeDecimal EquivalentSize740.022521.60 mm0.023620730.0244.10 mm720.0254.20 mm

How do you attach weights to a pinewood derby car?

drill one or more holes in the bottom of the car just in front of the rear axle and insert enough of the Fine Tune weight to bring your car up to 5 oz. Glue the weight in the hole. 8. Add the wheels and axles to your pinewood derby car.

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.

How much weight should I put in my pinewood derby car?

The maximum weight limit for a pinewood derby car is 5 ounces. Plan on adding 2 to 3.5 oz of weight to your car, depending on your car design and the weight of your pine wood block. A chunky car design has more wood so it needs less weight.

What was the fastest Pinewood Derby car?

The Black PRO Car is our fastest pinewood derby car. It pushes the Speed Limit! It is track-tested car ready to race featuring our race winning PRO friction-free BSA Ultra-Lite graphite-coated wheels and PRO BSA graphite-coated grooved axles.