Streamlining the Weigh-in

By Randy Davis
(An update of an article originally published December 1, 2004)
Have you been to a weigh-in/check-in that seemed chaotic? Did there appear to be a lack of organization or control of the event? All too often little thought is put into the organization of the weigh-in, which leads to irritated participants, and stressed officials. Fortunately, steps can be taken to transform the chaos into a streamlined process.
In today’s article I have provided information for race organizers to help the check-in flow smoothly. Of course, I have not exhausted this topic. If your organization has a smooth-running weigh-in, please e- mail your tips to me, and I will include them in a future newsletter.
In this article, I am assuming that the number of cars in the event will be reasonably large (greater than 50). If you have a smaller event, then some of the stations can be combined, and fewer officials will be required. However, all stations, equipment, and items mentioned in the article still need to be considered and accounted for.
PRELUDE
To lay the groundwork for a smooth flowing weigh-in, two preliminary items are required. Don’t set yourself up for failure by skipping these crucial items.
1. One or more workshops – By having the official scale available at a workshop, many of the participants will be able to adjust the weight of their cars which will minimize the amount of adjustments that will need to be made at the weigh-in.
2. Clear and complete rules – A good set of rules minimizes problems at the weigh-in. Unclear rules lead to confusion, arguments, and unnecessary stress on all involved. Make sure that all items specified in the rules will be inspected, and no inspection will occur for non-documented items.(1)
THE LEADER
Organization does not happen without preparation. If you want the weigh-in to go smoothly, then the event must be carefully planned, as should the race itself.
So who will do all this planning? Don’t just ask for a volunteer, and certainly don’t pick someone that has never experienced a pinewood derby! Instead, find someone that has good organizational skills. The person does not have to be an expert car builder, nor do they necessarily have to be a club official (unless your organization rules require it). But they do need to know how to plan, how to lead, and how to delegate.
PREPARATION
Now that the leader has been identified, they need to get on with the planning. Good planning should include identifying the best foot-traffic flow, recruiting and training of weigh-in officials, acquisition of the needed materials, etc. Plans would include a sketch of a floor layout, a list of materials and a list of weigh-in jobs, and a time-schedule to make it happen.
One point on recruiting; don’t make the mistake of recruiting too little help. The weigh-in leader should not plan to run a weigh-in station themselves. The leader will have enough to do with coordinating, answering questions, etc. If they run a station, that station will become a bottleneck.
EQUIPMENT
Here is a list of required equipment. I am sure you can think of other items as well:
– Weigh scales – I recommend one official scale, and one or more non-official scales (at least as accurate as the official scale). The non-official scales are used by racers to adjust the weight of the car.Then the car is weighed on the official scale before impounding.
– Official measuring devices – To check the car for compliance. These usually include a car body gauge and possibly a wheel gauge.(2) Make sure that gauges are available for checking all specifications identified in the rules.
– Tools – small screwdrivers (for removing and attaching underbody weight plates), 2 or more drills (for adjusting weight), pliers (for breaking weight plates), hacksaw (for cutting zinc rods), level (to make sure the scale is level).
– Supplies – lubricant, extra wheels, extra axles, weights (possibly screw-on zinc plates – these can be sold to parents as needed), and stickers (or permanent markers) to number cars. We use a black and silver permanent markers, and write the car number on the bottom-front of the car (black for light-colored cars, silver for dark-colored cars).
– Tables – Enough for each weigh-in station and for holding the impounded cars. Make sure the tables are stable and solid. The impound tables should be isolated so that only inspection officials have access.
– Car Immobilizers – The impound tables need something to prevent the cars from rolling. Inexpensive commercial solutions are available, such as the DerbyStop(3), or you can create your own solution using thick cords or wood slats taped lengthwise on the table (cars are placed perpendicular to the cord or wood).
STATIONS
Here are the basic stations (in sequence order):
– Registration Station – To register the owner (or verify the pre-registration).
– Inspection Station – To verify the compliance of the car to the rules.
– Repair Station – For owners to fix non-compliance issues.
– Weight Adjustment Station – For making gross weight adjustments – A non-official scale is located at the station for use by car owners. Using this non-official scale reduces congestion at the Weigh Station. Since car owners may be drilling lead at this station, it should be located in a place where lead fragments can easily be collected for disposal.
– Lube Station – For applying lubricant – Since graphite will be flowing, it should be located outside if possible.
– Official Weigh Station – Location of the official scale (make sure it is not under an air duct or in a draft) – Once the car passes weight, the car is impounded.
TRAINING
Trained workers will greatly streamline the weigh-in, so make sure each person knows what to do. Specifically:
– Inspection station – The worker(s) need to be familiar with the rules, with the appearance of the wheels/axles in the car kit, and the use of the inspection devices. They also need a list of items to check for.
– Official Weigh Station – The worker needs to be familiar with using the scale, and have a procedure to follow (e.g., blow debris off scale, zero scale, weigh car). Also, a time duration should be established as to how long the car will sit on the scale before declaring it is compliant (some scales fluctuate, so I recommend a 5 second count before the weight is considered official).
FINAL THOUGHTS
A dad told me about his experience with their weigh-in. The child had done a lot of work on the car, and he was very proud of the result. However, they were novices and did not understand the importance of weight. At the weigh-in, their car weighed only 3.5 ounces. Without being asked, or given permission, the official took the car to the Weight Adjustment Station and proceeded to drill holes in the back of the car. The child was very upset and started crying as he watched the “destruction” of his masterpiece.
The moral of the story? The job of the inspection official is to verify that the car meets the specifications, not to correct problems. Any adjustments to a car (weight, lubrication, etc.) should be done by the owners, unless the owners need help and specifically give permission to the officials to render assistance. This policy helps reinforce that the owners are responsible for their own car, limits the risk of an official damaging a car, and minimizes the number of required weigh-in officials.(4)
CONCLUSION
As you plan your weigh-in this year, spend the time to organize it well. You will find that planning will streamline the event, making it more enjoyable for car owners and officials.
(1) See Volume 11, Issue 1 – “Do’s and Don’t for Race Leaders”
(2) See our Car Go/No-go Gauge” and “Wheel Go/No-go Gauge”
(3) See the DerbyStop
(4) More information on race official assistance can be found in Volume 10, Issue 10 – “Leader Help – How Much is Too Much?”
From Pinewood Derby Times Volume 12, Issue 3
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