Bubble Machine Design Project - Discovery Press

Submitted by: Hailey QueenNorth Carolina State Universityhaqueen@ncsu.eduBubble Machine Design ProjectObjective: Design and build a machine that automatically produces bubbles andlaunches those bubbles from the machine to float through the air.Requirement & Constraints:1. The design must operate automatically. No hand cranks.2. The design may not incorporate any parts of commercial bubble-blowingmachines. Commercially available bubble wands are acceptable.3. The team must develop a bubble solution; commercial bubble solution maynot be used. The recipe for the bubble solution must be submitted duringcompetition.4. The design may be either line-powered or battery-powered. However,designs are restricted to small battery power – no more than 6 source volts(battery voltage can vary, but a 1.5 volt battery will be considered as sucheven if it measures 1.6 or 1.4 volts.). Also, consider that batteries generateheat and plan for this element in your design.5. The design must produce a continuous stream of bubbles for at least one (1)minute.6. The bubbles must detach from the machine.7. Electrical safety is a primary concern. Incorporation of electrical componentsmust be reviewed by the guru or your E101 instructor for safety if line-currentis being used.8. Portability – The design must be portable from the team table to thecompetition area.9. Points will be awarded for changing bubble size and bubble frequency. Thischange may be accomplished either automatically or by a team membermaking a discrete adjustment to the machine in less than 10 seconds. Morepoints will be given to those designs incorporating automatic adjustments.10. Supplemental Information - Each team should use and read the Wikimessage board to keep current on supplemental information relating to thisproject. All teams will be held responsible for the posted information and anyalterations to the competition criteria. Be sure to read ALL messages for thisproject before posting a specific question (it may have already beenanswered).11. Power outlets will be available at Design Day; however, your team mustsupply an extension cord and power strip for the competition.

12. As with all FEDD projects, this project must be completed within a $40budget. Found, borrowed or previously owned materials are not consideredpart of the project budget.Guru Contact Info:Competition Judging & Winning: The team that is assessed the most points basedon the following competition rubric will win the competition. Judges can assess up tothe maximum number of points listed per category, based on how well the individualdesign performs in that category. In the event of a tie, competition judges will make thefinal decision on place. On Design Day, the judges must be able to verify that thedesign meets the above criteria; otherwise the team will be disqualified.Bubble Blowing Machine Judging RubricFRESHMAN ENGINEERING DESIGN DAYTeam Name:Team Members:Section/Instructor:Competition CriteriaPointsMeets basic competition requirements:No commercial bubble-blowing partsRecipe submitted6 V maximum battery-power or line-powerContinuously and automatically operates for 1 minuteBubbles detach from the machineAlters Bubble Size /5Alters Bubble Frequency /5Bubble Volume (number of bubbles) /5Creativity in Concept /5Craftsmanship (professional appearance and presentation) /5Total Points