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Timer Builds

This page showcases different timer builds by cub scouts packs and other individuals or groups. If you would like to have your build added to this page please email a few photos, your pack information (number and area) and any additional information you would like to share to the email at the top of the page.

Pleasant Hill Baptist Church - Ohio

This 4 lane PDT has serveral unique features:

Front side of timer Internals slide out Timer electronics

Pack 77 - Venice, Florida

This 3 lane PDT features a colorful finish line.

Front side of timer

Mechanical Engineering students - Clemson University

This science experiment apparatus built by Mechanical Engineering students utilizes a PDT to help demonstrate forces and motion experiments to local 2nd graders. They are shown the effects of weight (heavy/light blocks), friction (sandpaper block) and the height of ramps on the time taken for the blocks to reach the bottom of the ramp.

Science apparatus

World's longest Pinewood Derby track

On October 15, 2016 the record for the World's longest Pinewood Derby track was set in Ashland, NE by the Boy Scouts Mid-America Council. The track was 1,819' 3.75" (554.5m) long and utilized a PDT to time the runs.

Timer at end of track Timer electronics Record details

Pack 103 - Lonoke, Arkansas

Front side of timer Timer electronics

4H Project - Troy G

Front side of timer Back side of timer

Philadelphia Church of God - Southern California

This 3 lane PDT features place/time displays on both sides.

Front side of timer Back side of timer

Pack 245, Ridgeview Elementary - Peoria, Illinois

This 4 lane PDT features a nice design and display colors matching the lane colors.

Front side of timer Timer electronics Back side of timer

Pack 244 - Lady Lake, Florida

This 4 lane PDT features a clever design.

Front side of timer Timer electronics

Home track - Kelvin L

This PDT was built for a home Hot Wheels track and features custom 3D printed parts, large (1.2") displays and a servo actuated start gate.

Finish line Timer electronics Servo actuated start gate

Pack 435 - Lebanon, Tennessee

This PDT was adapted to time Space Derby races.

Pack 435 Space Derby timer

HobbyTown USA - Orland Park, Florida

Finish line Timer electronics

46th Kingswood, 1st Longwell Green - Bristol UK

Finish line PDT wiring

Home track - Stephen H

This home test track utilizes multiple sensors on one lane to fine tune a car's performance through the entire race.

Multiple sensors on one lane Sensor arch Timer electronics

Pack 45 - Hanover, New Hampshire

Pack 45 finish line Pack 45 finish line

Pack 7 - Springfield, Ohio

Pack 7 finish line

Pack 317 - Peoria, Illinois

This PDT utilizes an Arduino Micro.

Pack 317 finish line Pack 317 timer circuit

Pack 310 - San Jacinto, California

Pack 310 finish line Pack 310 timer circuit

Pack 321 - Grain Valley, Missouri

Pack 321 finish line Pack 321 timer circuit

Home test track

An implementation of the PDT on a two lane test track is shown in the video below:

Last updated: 27 December 2017