pinewood derby wheel placement

wilfredolifshitz70344 March 31, 2022 derby , pinewood , placement , wheel Comment

That placement gives us a COM of 58 The front wheel can be all the way forward. You want the car to be that long minus just a little bit say 116 to allow for judging and measurement slop.

Pinewood Derby Times Volume 13 Issue 9 Maximum Velocity

Win the Pinewood Derby Building Pinewood Derby cars that win and having a fun time doing it is a trad ition that goes back generations in my family.

. Place a dark mark on the axle at 116th of an inch from the head. Your Pinewood Derby car should be able to balance at this point on the car. This marks where you.

Wheel Axle Preparation - Axles - no flaws straight polished. Weight placement is also important. The overall width of the car shall not exceed 2 ¾ inches.

Place a second mark at 14th of an inch as shown in Figure 2. The rules state a maximum 7-inch length. I then explain to them that the raised wheel is part of the design and.

It makes sure that the axles are horizontal and that the wheel-to-body gap is correct. Too far back and your car will pop a wheelie ruining any chance for a win. Now I have sons of my own.

Our Premium Wheels are unmodified official Pinewood Derby wheels that have been hand selected for high performance. In keeping with the suggestions I made 55 525 and 5 wheelbase bodies. All frictional losses in a pinewood derby car come from the wheels and axles.

Selected from molds that have demonstrated higher performance. We also clean the wheel bore. For more visit.

This is called the center of gravity or center of mass. Round within 004 Dont wobble. Start by inspecting the parts in your kit to make sure they are usable.

Mark the range of 12-1 in front of the rear axle of your completed car then start the balancing game. The length of your Pinewood Derby car is very simple to choose. A wheel-turning mandrel available from the Scout Shop or from your local hobby shop A small block of hardwood about 12 x 1 x 2 220-grit aluminum oxide dry sandpaper 400-grit and 1500-grit wetdry sandpaper Powdered Pumice from the hardware store.

For optimal Pinewood Derby car performance most of the weight should be placed one inch in front of the rear axle and as low on the body as possible. Weve been buildin g cars together for many. If you build two exact identical car bodies weigh them the same use the same axles and techniques to tune them and the only difference is that you changed wheels speed wheels will win 100 of the time by car lengths.

Items mentioned in this video. Get all your supplies thereThis short video gives a few more details on angling the axle. Diameter for all four wheels in a set are within 002 of each other.

With PineCars conformity gauge you can check if you pinewood racing car will qualify with one easy step. Ad BestTrack Aluminum Pinewood Derby Tracks are Fast Fair and Economical. Take a ruler attach it to some sort of base so that it can rest on the edge side up.

In front of the rear axle. If using a drill press line up the press table with the marks you made on the axle as shown in Figure 3. For example if your wheels are 14 inch then you need to mark 38 of an inch down the axle nail.

You want to eliminate Toe in and toe out so your wheels are perfectly straight. Pinewood Derby is a registered. Make sure your derby racer meets specifications before race day.

Making the rear tread about 38 inch from the back end. Clamp the axle in your drill press or power drill. Selecting the wheelbase is very rules-sensitive.

Add Pinewood Derby Car Weight to the front two pockets until you can get your car to balance on its own within that range. Get out your copy of the rules for your PackDistrict. Several times during the pinewood derby season I get a call from a customer complaining that their kit was mis-drilled.

Learn to ensure accurate wheel spacing and axle nail alignment using the Axle Placement Guide. What is a Pinewood Derby Speed Wheel. Compare where each wheel lines up with the lines on the PRO Alignment Tool.

This weight positioning helps create maximum inertia to push the car faster once the vertical drop has stopped and the horizontal track is reached. Our axle installer makes it easy to install wheels and axles on your Pinewood Derby car the right way every time. Place as much of the weight as you can approximately 1 in front of the rear axle.

They should all match. Official Pinewood Derby Rules Rules from BSA Pinewood Derby Kit Car Dimension Rules The overall length of the car shall not exceed 7 inches. The car must have 1 ¾ clearance between the wheels.

Wheels - no flaws polished. Place the tool flat on the bottom of the car and pull the wheels out to the axle head. Derby Car Weight Rules.

I insert rear wheel nails at an angle. When measuring the COM the rear wheel would be about 78 of an inch to where the axle hole will be drilled. For BSA PineCar and other kits which use 4 independent axles mounted in slots.

At Maximum Velocity our extended wheelbase car kits and blocks are drilled such that when installed one of the front axles will be slightly raised above the other three axles. Add 18 inch to their width and then measure down from the top of the axle nail and mark by that measurement. 6 cubes behind and I believe 16 in frontroughly 75 COM.

The car must have 38 clearance underneath the body so it does not rub on the track. The ideal placement for the center of gravity is 78-in. Too far forward and youll lose potential energy P98mh or the energy caused by the items position.

Wheels 58 from the back and only back 14 in front to keep from jarring during stops. Key to building a Champion Pinewood Derby car is using the best possible parts that you can find. Lubricate the wheel and axle - Slide the axle into the wheel.

Steer was around 2 in 4 feet. Some of my mo st vivid and cherished memories are of the time I spent building derby cars with my father and brothers.

Pinewood Derby World Championship Page 2 Derby Talk