Respuestas para la especialidad JA de Derbi de automodelos de pino
Nivel de destreza
1
Año
1999
Version
07.12.2025
Autoridad de aprobación
Asociación General
1
2
3
4
4a
4b
4c
4d
After pressing in the axles, test the car for crooked wheels. Roll it on the floor. If the wheels are on straight, the car should roll -10 feet in a fairly straight line. Should the car turn left or right, you need to tinker with the axle placement without removing them from the car body, until it rolls straight.
Do not put the axles in at the top of the groove. Put them in at the middle. This lifts the car off the track a bit more and reduces the chance of rubbing on the center strip.
4e
Leave a lot of wood in the back to put in the weights
What kind of weight? Melted lead is dangerous and unnecessary. Tubular weights can be sunk in the sides; flat weights, like those sold in hobby and scout stores can be attached to the car bottom if it is carved in a bit. Incremental weights (with pre-marked grooves) are easier to snap off into the size you need. Some folks just use BBs, nuts & bolts, etc., but these must be glued so that they can not move. No movable weights or mercury allowed.
4f
There are two main types of pine car lubricant, dry and liquid. Dry lubricants are usually either graphite or Teflon, while liquid lubricants are some type of oil. They will both help your car to go faster by reducing the friction between the wheel and the axle. Depending on the rules for your race you may be required to use one or the other so check the rules for your race to see what type of lubricant is allowed. Some races allow either type, some only allow graphite or Teflon, and others will only allow oil.
Break in the wheels by spinning them with lots of graphite.
Other than the good polishing of the axles, dump the axles and wheels in a Ziploc bag with some graphite and shake them for a few days prior to the race. That way the wheel and the axles are as slick as can be.
Just a note - graphite is very messy!
5
6
7
Jesus was a Carpenter. Jesus may have spent many hours in a wood shop. I wonder if He helped Joseph design, transfer the design, clamp the wood, cut the wood with a saw, file, sand smooth, paint, assemble. I wonder how many tools did Jesus know how to use, that you just used yourself? I wonder...
Nota: Si usted está planeando participar en una competencia de su asociación de automodelos de pino de carrera, asegúrese de utilizar las especificaciones de su asociación, ya que algunas usan especificaciones diferentes a las mencionadas anteriormente.
Referencias
S&W Crafts Manufacturing
P.O. box 5501
Pasadena, CA 91117
626-793-2443
http://www.pinewoodderbycars.com
Pine Car
P.O. Box 98
Linn Creek, MO 65052
Note: Pinewood Derby cars are usually available through the Boy Scout organization.

