Oklahoma Engineering Foundation s 33 rd Annual Engineering Fair February 18, am-2pm Rose State College

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1 Oklahoma Engineering Foundation s 33 rd Annual Engineering Fair February 18, am-2pm Rose State College 2014 Contests Bridge Building: 5 individual entries per school Eiffel Tower: 4 team entries per school [team: 2 students] Wacky Wonder Works: 4 team entries per school [team: up to 6 students] Rubber Band Powered Vehicle: 3 individual entries per school Essay Contest: 3 individual entries per school Ping Pong Ball Launcher: 3 team entries per school Electric Motor: 3 individual entries per school Pre-Registration Required. Contest Rules are attached. For more details, visit or call OEF at

2 2014 Bridge Building Contest Sponsored by Foreword This contest is limited to five entries per school. Each school MUST preregister by February 11, Register at Upon check-in the day of the event, you will receive the contest entry forms, which your students will fill out and turn in to the contest directly. Prizes will be awarded to winning entries from registered schools (entries from unregistered schools will NOT be eligible for prizes). Design Prior to the Fair a STUDENT bridge builder must design and build his/her own bridge. All design and building techniques should fall within the specifications that follow. Tolerances are given in the specifications. Should any bridge fall outside the tolerances, that bridge will be disqualified or the builder may attempt on-the-spot modifications to bring the bridge within specifications. Each bridge must be free standing. Note: While adults may aid the student with suggestions, etc., the bridge must be built ONLY by the student NO ADULT CONSTRUCTION ASSISTANCE IS PERMITTED. Materials 1. Square or round wood toothpicks (Standard restaurant size 2.75 inch, tapered ends) (unlimited quantity) No skewer or pick type toothpick cut to size, No Bamboo toothpicks, no Craft toothpicks. STRUCTURES BUILT FROM OTHER TOOTHPICKS WILL BE DISQUALIFIED. 2. Carpenters wood glue or Elmer s School Glue. (NO COLORED GLUES OR EPOXY BASED GLUES. STRUCTURES BUILT FROM OTHER GLUES WILL BE DISQUALIFIED.) 3. One (1) metal eye bolt with 1/4" diameter shaft, washers and nut. 4. Loading Block: Block of wood with dimensions not to exceed 2 1/2" x 2 1/2" x ½". The block is used to attach the eye bolt to the bridge. 5. Materials list of brand and type of glue and toothpicks used. Students are encouraged to bring the bottles/boxes (or their labels and a sample of an unmodified toothpick) with them in the event that any questions arise as to contruction materials. Geometry 1. Length: 24" (+/ ½"). 2. Width: 2 ½ (+/ ½"). 3. Height: Maximum of 9" (excluding eye bolt). See the Structural Effeciency criteria below for more height considerations. 4. Weight: Maximum 10 oz. (excluding eye bolt). See the Structural Effeciency criteria below for more weight considerations. 5. Roadbed: Bridge must have a flat roadbed. The area above the roadbed must accommodate a 1-5/16"O.D. (outside diameter) pipe. For ease of conformance to the geometry tolerances, the student should strive to construct a bridge that meets all the MINIMUM dimensions (including roadbed clearance requirement) while still being able to fit inside a 24 ½ long x 9 tall x 3 ½ wide box. Revised 08/2013

3 2014 Bridge Building Contest - Continued GEOMETRY EXAMPLE... Geometry Notes 1. The eye bolt must be located in the center of the bridge and be large enough to pass a ¼" diameter "S" hook through its eye. The "S" hook is part of the testing apparatus ( Bridge Breaker ) and is provided by the judges. 2. The eye bolt is attached to the Loading Block; the block should sit on the top of the roadbed (see above) and be supported by the roadbed, but should not be attached (e.g. glued) to the bridge.the Loading Block and shaft of eye bolt may protrude ABOVE the roadbed. Bottom of eye bolt MUST protrude a minimum of 1" but not more than 2" BELOW the end supports of the bridge. 3. The Loading block is used to transfer the load from the Bridge Breaker to the bridge. The larger the block of wood, the better it will transfer the load. Students should consider using the largest Loading Block that can fit inside the roadbed without exceeding the maximum sizes listed above (2 ½ square). Additional Rules & Remarks Toothpicks may be cut or glued. AT LEAST 50% OF EACH TOOTHPICK (WHETHER WHOLE OR CUT) MUST BE VISIBLE from one angle or another (i.e., four toothpicks could be glued together and a majority portion of each toothpick would be visible from one angle or another, but, if five or more toothpicks were glued together the center toothpick(s) would not be visible). The over-use of the approved glues typically does not result in satisfactory load capacities; i.e. soaking, dipping, or otherwise coating random configurations of toothpicks in glue will not be looked upon favorably by Aesthetics and Construction Quality judging and has historically resulted in substantially lower bridge load capacities. During Load Capacity testing, the students and spectators must stand outside the designated Debris Zone to avoid being hit by any bridge piece(s) that may be ejected when/if the bridge fails. Students and spectators are encouraged to take photos/video of the testing, especially before and after photos. Students will be able to dispose of their bridges at the competition room or are free to take their engineering creations with them at the conclusion of all testing and judging. Revised 08/2013

4 2014 Bridge Building Contest - Continued Judging 1. Decision of judges, during all phases of the competition, is FINAL. Any bridge that fails to meet geometry criteria, weight criteria, or material restrictions and has been disqualified from the competition may still be load tested at the judges discretion assuming adequate time remains after all qualified entries have been tested and judged. 2. Students will receive a Bridge Building Entry Form (BB-EF) at the registration desk. Students must submit this form at the contest registration before Noon. Judges will then inspect the bridge for compliance with the rules and assign an entry number indicating student s turn in sequence of competing. Judges may alter the testing sequence as they see fit.all entries must be registered at the contest location between 9:00 a.m. and 12:00 p.m. on Fair day. Contest volunteers will register bridges beginning at 9:00 am, bridge breaking (testing for load Load Capacity) will begin at approximately 10:00 am. Competition will run until all registered entries have competed. 3. Judges will weigh, measure, and register each bridge prior to Load Capacity testing. If a bridge does not meet the geometry or weight specifications, the entrant will be permitted a maximum of two attempts to modify their bridge to meet specifications. The 1-5/16" pipe, scales and rulers will be supplied by the judges. 4. The bridges will be competing in three categories Aesthitics and Construction Quality, Structural Effeciency, and Load Capacity. Top three bridges (which comply with all rules) in each category will receive prizes. The judging criteria for each category is as follows: A. Aesthetics and Construction Quality category: Entries will be judged on the overall design of the bridge and its consideration of engineering principles and mechanics. Consideration will be given to bridges that are constructed with care and precision as well as entries that show ingenuity and creativity in appearance and form. Decorating the bridges is not required, but is encouraged. The judges will award a 1 st, 2 nd, and 3 rd prize in this category. B. Structural Effeciency category: Entries will be weighed and measured and these results, along with the results from the Load Capacity category will be entered into a formula to generate a Structural Effeciency Score for the bridge. Lower scores represent more efficient designs compared to higher scores. Students should strive for high load capacity while trying to maintain low weight and utilizing the shortest (shallowest) bridge depth (height). The three lowest scoring bridges will be awarded prizes in this category. The formula used for the Structural Effeciency Score is as follows: (Weight x 10,000 + Height x 10,000) / (Load Capacity x 100) = Structural Effeciency Score C. Load Capacity category: Entries shall be load tested by means of a custom "Bridge Breaker". Judges will position the bridge on the tester with approximately 2" of each end of the bridge resting on the tester. The "S" hook will be attached to the eye bolt and pressure will be applied in a downward vertical direction. A load indicator will display pressure applied until the bridge fails. Failure is determined when (a) the bridge collapses, (b) a deflection of the base of the bridge exceeds one inch, or (c) the wood block causes a failure of the bridge roadbed. No repairs or modifications are allowed once testing has begun. However, if the eye bolt fails before the bridge fails, judges may choose to allow a new eye bolt to be placed on the bridge. 1 st, 2 nd, and 3 rd prizes will be awarded in this category. Prizes & Distribution Contest winners will be announced on the Engineer Fair web page at Those entries winning prizes will be notified through their teacher of record by mail by March 31. First, Second and Third place winners in each category will receive medals. The winning classrooms of the First, Second and Third Place entries in the Load Capacity category will receive a cash award. In the event of a tie, cash prizes will be equally distributed between winning entries. Revised 08/2013

5 Eiffel Tower Contest Sponsored by the Society of Plastics Engineers and the E-1 Club at the University of Oklahoma Foreword This contest is limited to four (4) entries per school. Each entry is a team project, conducted by two students. Each school MUST preregister at by February 11, Upon check-in the day of the event, you will receive the contest entry forms, which your students will fill out and turn in to the contest directly. Prizes will be awarded to winning entries from registered schools (entries from unregistered schools will NOT be eligible for prizes). Design Statement & Objective Using plastic drinking straws, build a tower at the OEF Engineering Fair within five minutes. Tallest three towers, which support a nominal 2 x 4 piece of wood (note that the actual dimensions of a 2 x 4 are not 2 and 4 ; they are slightly less; use the piece of wood that is slightly less) that has a minimum length of 36 and are still standing up to the time measurement is confirmed by the judges, will be the winning entries. Materials Only listed materials are permitted and must be provided by the students: 1. An unlimited number of plastic drinking straws as follows a. Firm or flex type plastic drinking straws. b. Maximum inside diameter of ¼" (See Judging & Scoring (2) for clarification) c. Maximum length of 10" d. Maximum wall thickness of 0.01" 2. Floral wire, bread wrapper or garbage bag wire ties of not more than 4 in length. 3. One 2 x 4 piece of wood that is at least 36 inches long. Boards must be solid (e.g. not hollowed out) Rules & Remarks 1. Each team will have a 10 ft. X 10 ft. working area marked off with masking tape. Students must limit their building activity and the base of their tower to this area. Sections of the tower which do not touch the floor may extend beyond the marked base. One or two (no more than two) free standing structures are allowed. Allowed! Revised 10/2013 Page 1

6 2013 Eiffel Tower Contest - Continued 2. A two-student team will assemble plastic straws to construct the tower after the judges signal starting time. The approved drinking straws may be connected using only wire ties, or, the straws may be inserted into one another without using the ties. No pre-assembly is permitted prior to the starting signal by the judges; however straws can be cut or holes punched beforehand to assist in assembly. Students must place the board prior to the end of the five-minute construction time limit. Height of tower will be measured from the lowest part of the board to the floor. 3. Any number of straws may be assembled end to end, however, no more than ten straws may be bundled together or stacked inside one another. It is allowed to have two groups of ten straws assembled end to end, but if assembled laterally together there must be at least two straw widths separating the two groups. 4. Towers which collapse during the five-minute construction time may be rebuilt. Towers which collapse after the five-minute construction time but prior to judging will be disqualified. 5. Teams may bring boxes of whole or precut straws to the construction site. Ladders, scissors, knives or other instruments WILL NOT BE PERMITTED in the area. Pre-cut materials ARE permitted, but pre-assembled materials ARE NOT permitted. 6. Following judging, all materials must be removed from the area by the team and disposed of in designated receptacles. Teams will be disqualified if they leave without removing ALL their materials. Judging & Scoring 1. Students will receive an Eiffel Tower Entry Form (ET-EF) at the registration desk. Students must submit this form at the contest registration before Noon. 2. Judges will check internal dimensions of the plastic drinking straws by inserting a standard steel dowel pin (available at most hardware stores). If the pin falls through any of the straws the students will be disqualified from the competition. 3 The two-student team will be permitted at least one minute to organize their materials prior to the fiveminute timed competition. Several teams will compete at the same time, each in their own designated work area. When judges give the signal to start, teams will begin construction. When judges call "time" (5-minute time limit), construction must stop. Judges will measure the height of each tower from the base of the tower to the bottom of the ruler and record the results. 4. All entries must be registered at the contest location between 9:00 a.m. and 12:00 p.m. on Fair day. Competition will run until all registered entries have competed. 5. Decision of judges, during all phases of the competition, is FINAL. In the event of a tie, prizes will be equally distributed between winning entries. Prizes & Distribution Contest winners will be announced on the Engineer Fair web page at Those entries winning prizes will be notified through their teacher of record by mail by March 31, First, Second and Third place winners will receive medals. The winning classrooms of the First, Second and Third Place entries will receive a cash award. Those medals and cash awards will be mailed in early April. Revised 10/2013 Page 2

7 Electrical Motor Contest Rules Sponsored by the IEEE Chapter of OKC Foreword This contest is limited to three entries per school. Each school MUST pre-register at by February 1 1, Prizes will be awarded to winning entries from registered schools (entries from unregistered schools will NOT be eligible for prizes). Objective Prior to competition, design and build an electric motor powered by a dry cell battery that rotates at the highest possible speed. Design Statement Each entrant will design, build and test an electrical motor. The motor shall be powered by one readily available non-rechargeable dry cell battery. The motor is judged on its highest rotation speed with no load. The motor may be started by hand. The motor is to be constructed from materials and simple hardware readily available at retail stores or mail order suppliers. A design drawing and parts list indicating the source, cost and fabrication operations for each part must accompany the motor. NOTE: The motor must be built by this year's entrant and not by a previous year's entrant. Materials & Restrictions The power must be derived from one non-rechargeable dry cell battery. The maximum nominal voltage shall be one and one-half (1.5) Volts. A single flashlight battery up to D size may be used. Batteries may not be paralleled. The battery is supplied by the entrant and may not be replaced during a timed contest. The battery may be replaced between the first and second trial. Readily available permanent magnets may be used. Industrial quality or other professionally manufactured components are not permitted. Manufactured kits will not be allowed. Electrical and electronic components such as switches, resistors (variable and fixed), capacitors, inductors, relays, transistors, integrated circuits and interconnection hardware readily available through local retail or mail order sources may be used. Pre-manufactured subassemblies such as armatures, field structures, computer, or controller modules will not be permitted. Materials such as wire, cable, string; wood, plastic, permanent magnets, metal sheet; bar and rod stock; common fasteners such as nails, screws, adhesives, staples and rivets; wheels, pulleys, bearings; and other common items readily available in local retail stores may be used. Toy or hobbyist type articles such as erector set structural components may be used. Major components such as armatures, commutators, or field structures from motors or motor kits may not be used. NOTE: A design drawing clearly labeling each component and a corresponding parts list must accompany each motor. The parts list must indicate the source (vendor), cost, machining and fabrication procedure for each component. - Revised 7/30/13 dbm

8 2014 Electrical Motor Contest - Continued Rules All power for operating the motor must come from the battery. Only non-rechargeable dry cell batteries are permitted. The total nominal battery voltage shall not exceed one and one-half (1.5) Volts. A single flashlight battery up to and including D size may be used. Batteries may not be replaced during a timed contest. Batteries are to be supplied by the entrant. The motor may be operated by the entrant(s) through manual electrical controls such as switches, variable resistors or other electrical interface devices, or the system may operate automatically after starting. The stable no-load rotation speed of the motor will be determined using an electro-optic tachometer. An electro-optic tachometer observes and measures the rate alternate light and dark reflective areas pass by a light sensitive detector. NOTE: There must be a 1 " or larger diameter disc attached to one end of the motor shaft and painted black so that a reflective tape marker may be readily viewed by the tachometer. This mark will be viewed by an electro-optic tachometer to determine rotation speed. IMPORTANT NOTE: Re-read the Construction Specification regarding the required black disk above. The reflective tape and tachometer will be supplied by the judges. The objective is to achieve the maximum possible rotation speed for the motor when operating with no load. Each entry will have two (2) one (1) minute timed runs. The higher observed speed score will be used. The entrant will have a one (1) minute setup and test period prior to the first run. No more than one (1) minute may elapse between the end of the first timed run and the beginning of the second timed run. No intervention with the motor's operation is permitted during the timed run except through the electrical control panel or for starting. The motor may be started by hand or other auxiliary means. The motor must accelerate to a final stable speed if started by auxiliary means - it cannot "coast down" from a starting impulse. Repairs and adjustments are permitted between timed runs and during the setup period. NOTE: The design drawing and parts list must be submitted at the time of check-in and inspection. The motor will be placed on the competition table and operated by the entrant. The judges will observe the rotation speed with the electro-optic tachometer during each of the one (1) minute timed runs and determine the maximum observed speed. The competition area will be off limits to everyone except the competitors and officials. Judging & Scoring 1. Students will receive a Electric Motor Entry Form (EM-EF) at the registration desk. Students must submit this form at the contest registration before Noon. Judges will then inspect the electric motor and assign an entry number indicating student s turn in sequence of competing. - Revised 7/30/13 dbm

9 2014 Electrical Motor Contest Continued 2. Two (2) separate design categories will be judged and awards given in each category. Category I is a traditional horizontal shaft design that utilizes bushings or supports for the motor shaft. Category II is any type of vertical shaft design that may or may not utilize any type of shaft bushing/s. 3. All entries must be registered at the contest location between 9:00 A.M. and 11:30 A.M. on Fair day. Competition will run until all registered entries have competed. 4. The motor will be inspected and registered at the contest area just prior to competition. A motor shall be registered and operated by one and only one team. No re-registration is permitted. A team may register only one motor. After inspection by the judges, the motor will be placed in the contest queue. 5. The score will be the maximum observed stable no-load rotation speed of the motor in revolutions per minute (rpm) reduced by any penalties. A penalty equal to 50% of the observed speed will be applied for any entry not providing a complete and accurate design drawing and parts list. 6. Any motor using manufactured components from motors or motor kits will be disqualified. 7. Each entrant is responsible for providing batteries, supplies and tools as required. The judges will provide the tachometer and reflective tape. 8. Prior to the testing, each motor will be inspected and initialed by the judges to indicate compliance with contest construction specifications. 9. Each team is responsible for the security of its entry. No time will be spent looking for or waiting for teams not present when it is their turn. Teams not present will go to the end of the queue if time permits. 10. In the event of a tie, the motor determined to have the most creative design will be declared the winner. 11. Decision of judges, during all phases of the competition, is FINAL. In the event of a tie, prizes will be equally distributed between winning entries. Prizes and Distribution Contest winners will be announced on the Engineer Fair web page at Those entries winning prizes will be notified through their teacher of record by mail by March 31, First, Second and Third place winners in each of the two categories will receive medals. The winning classrooms of the First, Second and Third Place entries will receive a cash award. The first place classroom will receive $100, the second place classroom will receive $75 and the third place classroom will receive $50. - Revised 7/30/13 dbm

10 Essay Contest Sponsored by the Oklahoma Engineering Foundation FOREWORD An essay contest will follow the OEF Engineering Fair. Our objective is to get a sense of the Fair's educational value. There are two competition levels: 6-9 th grade students and th grade students. Each school may submit a maximum of three entries. Schools which have grades 6 through 12 may submit three entries for EACH level of competition. Each school MUST preregister at oef.org/programs/engineeringfair by February 11, Upon check-in the day of the event, you will receive the contest entry forms, which your students will fill out and turn in to the contest directly. Prizes will be awarded to winning entries from registered schools (entries from unregistered schools will NOT be eligible for prizes). ESSAY RULES 1. Hand-written essays are NOT acceptable. Essay must not exceed two 8½" x 11" pages and must have at least 1 margins. Text must be no less than 12 pt font in either Times New Roman or Arial font. 2. On a separate cover sheet, stapled to the front of the essay page, the following information should be listed: Essay title, followed by student's name and grade, name of sponsoring teacher, school and the date. Also include student's home address and telephone number (address ONLY used if student is selected as the winner). 3. Grades 6-9: Describe in detail two science or engineering principles or concepts you newly learned while at the Fair. Explain why these two principles or concepts may be important to your life in the future. 4. Grades 10-12: Describe in detail two ways the Engineering Fair could be improved or be made more interesting within the context of where it is held. Explain how these improvements would be likely to persuade a friend, who normally would not be interested in science or engineering, to attend. 5. Submit essay before March 5, Mail to: Engineering Fair Essay, Oklahoma Engineering Foundation, 201 N.E. 27th Street - Room 125, Oklahoma City, OK Or, essay may be sent as a MS Word file attachment to an . Send to EngineeringFair@oef.org. Faxed copies will not be accepted. 6. Essays become the property of OEF and will NOT be returned. By entering this contest the author gives permission for the Oklahoma Engineering Foundation to reprint the article in their publication. JUDGING CRITERIA 1. Essays will be evaluated by a committee of engineers and teachers selected by OEF. 2. Judging will be based on creativity, clarity of expression, and freedom from errors. 3. Extra credit will be given for specific references to interviews with exhibitors at the Fair. Exhibitor name and company must be included for credit. 4. Decision of the judges will be FINAL. PRIZES AND DISTRIBUTION Contest winners will be announced on the Engineer Fair web page at oef.org/programs/engineeringfair. Those entries winning prizes will be notified directly at their home address by April 15. First Prize for the 6-9 th grade contest is $25 to the author. First Prize for the th grade contest is $50 to the author. There is no award given to the classroom for this contest. Revised 10/2013

11 Foreword Ping-Pong Ball Launcher Contest Sponsored by the Society of Manufacturing Engineers This contest is limited to three entries per school. Each school MUST preregister at by February 11, Upon check-in the day of the event, you will receive the contest entry forms, which your students will fill out and turn in to the contest directly. Prizes will be awarded to winning entries from registered schools (entries from unregistered schools will NOT be eligible for prizes). Design Statement and Objective Prior to the competition, each team will design and build a launcher which can catapult ping-pong balls at targets (#10 Cans 6 Dia. X 7 tall) located twelve feet from the launcher table. Launcher must shoot only one ball at a time and should be re-loadable in order to launch as many balls as possible within a threeminute time frame. Materials (ALL MATERIALS ARE TO BE PROVIDED BY STUDENTS) 1. One standard household mousetrap. NOTE: Rat Traps are NOT Allowed. 2. Additional "add on" materials are permitted. 3. Sufficient quantity of ping-pong balls a MINIMUM of 3 dozen balls PER launcher. NOTE: Each team should have their OWN supply of ping-pong balls in order to keep the competition running efficiently; i.e., teams are expected to be ready to compete IMMEDIATELY when their entry number is called. If entries from a school must share the supply of ping-pong balls, please see following note. NOTE: Teams from the same school can share ping-pong balls if they are competing at different times. Please notify the volunteer at the contest registration desk so each entry may be placed in different competing heats. If schools do not notify the registration volunteers they will not be allowed to share ping-pong balls during their competition heat Rules & Remarks 1. Modify a mousetrap to launch ping-pong balls through the air. Only the tension of one mousetrap can be used as the force to shoot the balls. ALL ORIGINAL PARTS OF A MOUSETRAP MUST BE VISIBLE, WHETHER FUNCTIONAL OR NOT. 2. Targets will consist of three empty cans (#10 Size, EXAMPLE: cans; open end up, with an opening of approximately 6"). Cans are lined with a ¼ sheet of foam padding to reduce the bounce effect after the balls hit the inside of the target. Cans will be positioned side by side in a triangular configuration and placed at the edge of the target table closest to the launcher table. (see diagram on following page). 3. One team member will operate the launcher (the Shooter ) while the other member (the Catcher ) retrieves stray balls, returning them to the launcher operator for additional launches. Team will earn points for each ball remaining in targets at the end of the three-minute time frame. 4. Launcher and targets will be on separate tables. Tables are 3' high and the facing edges of the tables will be positioned 12' apart. Table-top area will be at least 2.5 wide. The Launcher must fit on the table with no parts of the Launcher extending beyond the front of the table (towards targets). 5. Weight and/or size of the launcher should be heavy enough to remain stable during launches. Attaching launcher to the table is NOT permitted. 6. The launcher may be hand-held but must rest on the top of the table during launches. Distance between any part of the launcher and targets must be at least 12'. A "triggering" or "tripping" mechanism is optional.

12 Ping Pong Ball Launcher Rules Ping-Pong balls must enter the targets "on the fly". Balls that enter the targets after bouncing off the table, wall or backstop will NOT be counted. 8. Ping-Pong balls CANNOT be removed from targets during the three-minute time frame. 9. Multiple attempts and adjustments to the launcher are permitted within the three-minute time frame. 10. Each team must bring their own supply of ping-pong balls. Ping-pong balls cannot be modified to reduce their normal bounce. One thin coat of paint, to identify balls, is permitted. DIAGRAM (Refer to Rule #2): Targets = 3 #10. cans Procedure, Judging and Scoring 1. Teams will receive a Ping-Pong Ball Launcher Entry Form (PPBL-EF) at the competition site. Students must submit this form at the contest registration before Noon. Judges will then inspect the launcher and assign an entry number indicating students' turn in sequence of testing. 2. When your number is called, you will be assigned a launch table; proceed with competition when instructed to begin. 3. At the end of the team's three-minute time frame, judges will count balls remaining in targets (cans). Each ball in the rear two targets will yield 30 points; and 50 points per ball in the center front target (see diagram below). 4. Team members must remain in the area until scoring for your launcher is complete. 5. All entries must be registered at the contest location between 9:00 a.m. and 12:00 p.m. on Fair day. Competition will run until all registered entries have competed. 6. Decision of judges, during all phases of the competition, is FINAL. In the event of a tie, prizes will be equally distributed between winning entries. Cash Prizes and Distribution Contest winners will be announced on the Engineer Fair web page at Those entries winning prizes will be notified through their teacher of record by mail by March 31, First, Second and Third place winners will receive medals. The winning classrooms of the First, Second and Third Place entries will receive a cash award. Those medals and cash awards will be mailed in early April. Revised 10/2013

13 Foreword Rubber Band-Powered Vehicle Contest Sponsored by the American Society of Mechanical Engineers This contest is limited to three entries per school. Each school MUST preregister at oef.org/programs/engineeringfair by February 11, Upon check-in the day of the event, you will receive the contest entry forms, which your students will fill out and turn in to the contest directly. Prizes will be awarded to winning entries from registered schools (entries from unregistered schools will NOT be eligible for prizes). Design Statement Prior to competition, design and build a rubber band-powered vehicle which can carry a one-pound "load" the greatest distance in a straight line. Materials & Restrictions There are no restrictions on materials, size, weight or number of wheels. However, the only energy source permitted is the elastic energy of one rubber band, size #64 (approx. ¼" wide by 3½" long by 1/32" thick). Commercially assembled vehicles are NOT permitted. However, commercially manufactured components may be used as parts of the vehicle. The "load" will be a 16 oz. box (including contents) of Arm & Hammer Pure Baking Soda (approx. size: 3½" x 4½" x 2"). Objective To design a wheel-driven vehicle, powered only by one rubber band (size specified above), which will transport a one-pound "load" (specified above) the farthest distance (on a level, industrial type, carpeted floor) while remaining within the boundaries of a 3 ft. wide parallel track (marked off with masking tape). Speed is not a criteria. Rules 1. Only official rubber bands (provided by judges at the Fair) must be used during the competition. The rubber band may NOT be cut and must remain with the vehicle throughout the run (NOTE: rubber band may be dragging from the vehicle at the end of the run). 2. Guard rails or a similar holding device must be part of the design on top of the vehicle to hold the "load" (load supplied by judges at the Fair). The "load" may NOT be tied or strapped to the vehicle (i.e., baking soda box must be easily placed on and removed from the vehicle). 3. Up to three runs will be permitted within a 5-minute time frame. Repairs and adjustments will be permitted between runs. 4. The vehicle must be self-starting (i.e., no pushing, external power starts, etc.). Contestants are permitted to hold the vehicle behind the starting line and simply "let go". 5. Propulsion of the vehicle must be through the wheels (i.e., no propellers, no launching mechanism). Transferring the energy of the rubber band to wheels via gears, fly wheels, etc., is encouraged. No remote control devices are permitted. Revised 10/16/2013

14 Rubber Band-Powered Vehicle Contest - Continued Judging & Scoring 1. Students will receive a Rubber Band-Powered Vehicle Entry Form (RBPV-EF) at the registration desk. Students must submit this form at the contest registration before Noon. Judges will then inspect the vehicle and assign an entry number indicating student s turn in sequence of competing. 2. All entries must be registered at the contest location between 9:00 a.m. and 12:00 p.m. on Fair day. Competition will run until all registered entries have competed. 3. The vehicle will be inspected and registered at the track area just prior to competition. 4. After each run, distance traveled will be measured and recorded in feet and inches as follows: Starting line to... a. the front of the vehicle when it stops; or b. the point vehicle strays outside the 3-ft. wide track; or c. the spot where vehicle drops the "load" or any associated parts. 5. Final score will be the vehicle's best run of up to three attempts allowed during the 5-minute time limit. 6. Decision of judges, during all phases of the competition, is FINAL. In the event of a tie, prizes will be equally distributed between winning entries. Prizes and Distribution Contest winners will be announced on the Engineer Fair web page at oef.org/programs/engineeringfair. Those entries winning prizes will be notified through their teacher of record by mail by March 31. First, Second and Third place winners in each category will receive medals. The winning classrooms of the First, Second and Third Place entries will receive a cash award. In the event of a tie, cash prizes will be equally distributed between winning entries. Revised 10/16/2013

15 Wacky Wonder Works Contest Sponsored by the Central/Southwest Chapter Oklahoma Society of Professional Engineers Foreword The Wacky Wonder Works (WWW) Competition uses slightly modified Rube Goldberg, Inc. machine challenges to test student s engineering skills. Please review the rules below as some have changed from past competitions. This contest is limited to four (4) entries per school. Each entry is a team project; conducted by no more than six team members. An individual student may NOT participate on more than one team. Only one entry per team is allowed. Each school MUST pre-register at by February 11, Prizes will be awarded to winning entries from registered schools (entries from unregistered schools will NOT be eligible for prizes). Additionally, schools participating in the Wacky Wonder Works Contest must complete the Project Description Form and present it to the judges at the Wacky Wonder Works competition station. IMPORTANT!!! Only registered entries accompanied by a completed Project Description Form will be permitted to compete. Design Challenge Design and build the most complicated mechanical device to achieve a simple objective: Zip a Zipper. Please review the rules below. Example This example is provided solely to give students an idea of the type of project we anticipate. A steel ball rolls down a channel, then trips a lever that activates another action, etc. until the final action zips the zipper*. See clarifications on the challenge (Item #16 under Rules). Materials All materials are to be provided by the contestants. Questions regarding the use of materials or interpretation of the rules can be addressed to John Doddy ( johnjdoddy@aol.com). Rules 1. Prior to competition, create a mechanical machine (designed and assembled entirely by students) that will achieve the design challenge. 2. The machine must be self-contained and will be set up on a table provided by OEF at the competition site. Table dimensions will be at least two feet wide by six feet in length. The machine must not be taller than 36 inches in height and no portion of the machine may extend beyond or below the tabletop. 3. The following items are NOT permitted: hazardous materials, explosives, caustic substances, open flames, aerosol sprays, live animals, or any materials that could be construed as unsafe to humans or potentially damaging to the contest area. Projects containing any of these items will be automatically disqualified. 4. The machine must be safe to the satisfaction of the WWW judges. WWW must approve any questionable items prior to competition. 5. Air filled balloons are permitted providing the balloon remains within the set boundaries of the machine including any slivers/remnants from the balloon. Revised 08/22/2013

16 2014 Wacky Wonder Works Contest Continued 6. Battery operated devices (low voltage/low current DC devices) are permitted. Only AA, AAA, C, D, and 9 volt dry cell batteries are permitted. For example, a small DC motor operated by a 9 volt battery. No electrical devices that pose a safety issue (e.g. high voltage arcs) to operators or others in the judging area will be permitted. 7. The use of microcontrollers, servos, or small DC motors is allowed. 8. The machine must not express or imply profane, indecent or lewd expressions. 9. Any loose or flying objects must remain within the set boundaries of the machine. This includes, but is not limited to, drops of water, slivers/remnants of balloon and other small objects. 10. Teams are limited to 6 members; however, a maximum of two students will be allowed in the contest area to set up and operate the machine. 11. The team has twenty minutes to set up, adjust and test their machine. 12. The machine must complete the zipper task within 5 minutes. The judges will keep the official time. 13. Once the machine has been activated, students cannot touch any part of their machine until completion of the design challenge. However, if the design challenge is not completed, a second attempt may be initiated. A maximum of only one completed run will be allowed and a maximum of only one restart will be allowed. If the challenge is completed in the initial run, a second run will not be allowed. If a restart is attempted, the second run must be completed within the initial five minutes. 14. Repeated actions in certain cases, actions may be repeated (e.g. several balls rolling down a ramp, each ball operating a lever or gate) or action sequences may be repeated (e.g. several strings of dominoes separated by independent action items). A repeated action or repeated action sequence will only be counted the initial three times. Subsequent repeats of this action or action sequence will not be scored but will be allowed. 15. Each team member must be enrolled as a student at their representative school. 16. Participation in the contest implies consent to use contest photographs in local, regional and national publicity. 17. Current challenge clarifications: The following items provide clarification of the design challenge. a. The zipper used must be of the interlocking finger design (i.e., the zipper found in a pair of Levi s ). Zippers like those on Ziploc bags will not be allowed. b. The zipper s slider may be physically attached to a component of the machine prior to starting the machine. c. Contestants may use any size zipper, but to complete the task, the zipping action must complete a zip of at least 3 inches. 18. Bonus Points: Bonus points may be added for completing extra tasks such as zipping multiple zippers, closing & opening the zipper, etc. Revised 08/22/2013

17 2014 Wacky Wonder Works Contest Continued Procedure, Judging, and Scoring 1. Students will receive a Wacky Wonder Works Entry Form (WWW-EF) at the competition site. Students must submit this form at the contest registration before Noon. 2. Entries must be registered between 9:00 a.m. and 12:00 p.m. on Fair day. Competition will run continuously from 9:30 a.m. until finished. Judges will determine winners at about 2:00 p.m. (winners need not be present). 3. Prior to the competition, judges will inspect the machine to determine dimension limits and if materials used are within the rules. Judges will also review the actions listed on the Project Description Form (PDF) with the students. 4. When instructed by the judges, contestants will activate their project to begin the initial run. 5. A project will be judged as successfully completing the design challenge if the flashlight is turned on. 6. One point will be awarded for EACH different and distinctive action. Only actions that are different, distinctive, and visible will be scored (e.g. a ball rolling down a channel and just turning a corner would only be counted as one action). See Rule 13 (above) regarding repeated actions or repeated action sequences. Each action eligible for point consideration must be listed on a separate line on the PDF. Every action must have an effect on another action and contribute to achieving the design objective; in order to be counted. 7. All machines that demonstrate a design that can, in principle, achieve the design challenge, will be scored. Projects completing the design challenge will be ranked higher than those that do not. For instance, a project that has 20 steps and completes the design challenge will be ranked higher than a project with 30 steps that doesn t complete the design objective. In the event that no projects meet the design challenge, the project with the most successful steps will be declared the winner. 8. The judges will have the authority to interpret all rules. The judges may instigate any additional rules at the time of judging for the purposes of safety. 9. Any challenge to the rules must be made while the challenged project is still set up and in the competition area. 10. Do not disassemble the project until instructed to do so by the judges. 11. DISQUALIFCATION. In the event that a project is in violation of the rules, the project will be disqualified and not scored. Every effort will be made to make the disqualification notification before the project is disassembled; however, this may not always be possible. The judges reserve the right to disqualify a project after review. If a project is disqualified, it will not be scored. 12. Decision of judges, during all phases of the competition, is FINAL. In the event of a tie, prizes will be equally distributed between winning entries. Prizes & Distribution Contest winners will be announced on the Engineer Fair web page at Those entries winning prizes will be notified through their teacher of record by mail by March 31. First, Second and Third place winners will receive medals. The winning classrooms of the First, Second and Third Place entries will receive a cash award. Revised 08/22/2013

18 Wacky Wonder Works Project Description Form PRINT CLEARLY and LEGIBLY School: School Address, City, Zip: Sponsoring Teacher: Phone: School ( ) Teacher ( ) Address: Designated Classroom: Names of Students Who Will Operate the Project: (1) (2) Additional Team Members (4 additional maximum) (3) (4) (5) (6) We hereby certify that the Wacky Wonder Works Project was designed and built ONLY by students from the school listed above and each student listed above contributed to the design and construction of the project. Signature of Student #1 Above Signature of Student #2 Above Revised 08/22/2013

19 Activity Description in Order of Actions (Print or Type): (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) (18) (19) (20) (21) (22) (23) (24) (25) (26) (27) (28) Revised 08/22/2013

20 (29) (30) (31) (32) (33) (34) (35) (36) (37) (38) (39) (40) (41) (42) (43) (44) (45) (If needed, attach additional pages, numbered per the above format) Revised 08/22/2013