![wooden boy abc box wooden boy abc box](https://i.pinimg.com/originals/53/f5/ab/53f5abca8e9318bae955c8ce9bf09e36.jpg)
Reject any that follow a curved path or that wobble. The wheel should roll in a straight line and not wobble.
![wooden boy abc box wooden boy abc box](https://img.etsystatic.com/il/8a747b/923850059/il_fullxfull.923850059_jp3j.jpg)
Roll each wheel on a flat, dry, clean surface. Reject it if the wheel noticeably wobbles from side to side or if it only spins for a few seconds. Mount each wheel on one of the axles that you prepared in the above step then spin the wheel.
#WOODEN BOY ABC BOX FULL#
See our full instructions for polishing the axles. You will need 400 grit and 1200 grit sandpaper and a polishing paste. Will reduce the contact area between the axle head and wheel giving youĥ. Press the file against the axle head to give the head a slight taper. Then move the file to the inside of the axle First, place the file on the crimp marks until they areįlush with the axle shaft. This by mounting the axle in a drill then spin it while holding the file Use a jeweler's file to remove the crimp marks and burrs. Have burrs and crimp marks that should be removed then the axle should be polished to give your car moreĤ.
#WOODEN BOY ABC BOX PRO#
The head wobbles, the axle should be replaced or you can use our Pro Either get another block or drill axle holes (if your rules allow). If either slot isn't perpendicular with the edge of the block, your car won't roll straight. The credit card edge should line up with theĪxle slot. Line the long edge of the creditĬard with the side of the block then compare the short edge of theĬredit card with the axle slot. PlaceĪ credit card on the bottom of the block. Check that the axle grooves are perpendicular to the block side. Push down on each corner of the block in turn You should also replace the block if there are any cracks that won't be removed when you shape your car.Ĭheck for a warped block. The block should be replaced if you find cracks near the axle slots or chips on the slots. Inspect the pinewood derby block for cracks and chips. Is defective, it is far better to replace it than to try to fix it.ġ. The first step is to inspect the block, wheels and axles. First Step - Check the Pinewood Derby Car Parts You will need one block, four axles and four wheelsĪs a minimum to build a car. Varieties of pre cut blocks, an assortment of prepared wheels and polished axles that are legal in all pinewood derby races and can If youĭo not have a kit or if you do not want to cut the block, we have several If you were given a pinewood derby kit then you can start with the first step on this page. If this is your first time building a pinewood derby car, I suggest starting out with a simple design requiring only a few cuts of the block. It is toxic.Ĭhildren should not use power tools without adult supervision If you use lead, wear gloves and wash your hands after use. Wear protective goggles, gloves and a dust mask to protect your eyes, hands and lungs