Origination: Cork Catapult

Quick to human body, the trigger launcher offers ample opportunity to customize your design.
Bod a triple-gun for hire, operating theater a tiptop long peerless to maximise the energy harnessed from the rubber circle!

You can find the lesson plan, 1-page imag bed sheet, and more cast ideas at Theme-Inventions.com

Project Goal: Students build and modify a simple trip-unblock cork launcher that fires at least 10 feet

Design Variables: Number of rubberize bands, length of the catapult, number of combined launchers

Key Concepts

  • Flight is the path that an object follows through the air operating theater other liquid
  • Set off is a device that sets off a mechanism

Prep: Carefully cut corks into quarters (2 per pupil)

Safety: Always take aim cork launchers away from people, even when unloaded.

Step out 1: Materials

The Engineering Creation Kit has everything you need for this project and many another more from STEM Inventions.

For the basic model, you'll pauperization:
6 craft sticks
3 craft cubes (Bulk pack)

2 rubberbands
1 clothes peg

Synthetic cork
Calefactory glue with safety nozzle
Tape

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Step 2: Skeletal system and Trigger

In the first envision, the sticks appear to be long shallow stairs, descending from right to left. This is essential because the rubber band will be released from right to left. If the sharpness of the craft stick is unclothed, information technology whitethorn catch the rubber dance band and grounds the shooter to not work properly.

Ii cubes are placed nigh together connected one end to bread and butter the activate. This will create more sense in the incoming step.

Finally, the trigger (clothespin) is glued along.

Step 3: Attach the Rubber Band

The rubberize band that is put-upon to fire the bobfloat is simply taped to the front of the shooter.

Bonus! If you choose non to tape the elastic to the front, then you'll have a rubber band rocket launcher!

Step 4: Load and Fire!

Use a utility program knife or other tool to cut a piece of Cork into a circularity. This will help tremendously with the aerodynamics of cork.

To load: use deuce fingers to pull the galosh band back into the open trigger. Close the trigger, then countenance blend in of the rubber band. Insert the bottle cork disk between the strands of taut rubberise band.

Launching is easy: just aim and push the clothespin!

Taste to limit the number of bobfloat disks the students can bring home

Step 5: Modern Ideas: Hinged Stunt woman Launcher, Cork Launcher Motorcar

The skewer can be slid exterior of the frame, which allows for other bottle cork launcher designs to equal interchanged. The example pictured has a elementary cork catapult and an pointer launcher.

An arrow launcher fires projectiles that are identical to these. The underlying case has one modification: a couplet of miniscule guide sticks affixed at the front of the catapult. This increases reliability and accuracy.

The Cork Rocket launcher Car is Sir Thomas More than just a cork rocket launcher on wheels. A craft bewilder glued to the terminate of the clothespin acts as a trigger. When the motorcar is pushed into a rampart, the craft stick leverages the force of the impact to open the clothespin, which automatically launcher the cork. Be Careful! Always place yourself to the side of the car's path. Never position yourself directly in the path of the launcher. This is esay to forget because IT is very spontaneous to push the car directly off from oneself. Always continue to same side.

Step 6: Tips and Troubleshooting.

  • The design in this Instructable shows the cork launcher in its simplest form. Encourage the students to make modifications.
  • Don't provide the students to rocket launcher craft cubes. It is much denser and performs better than cork disks, but IT is also Sir Thomas More dangerous.
  • This body process is very easy - older students may complete IT in as pocketable as 10 proceedings. For added longevity, ensnare targets or past challenges.
  • As students are building, make sure that they Doctor of Osteopathy not accidentally make a mistake on the archetypal step. An edge of a craft gravel or other imperfection that impedes the release of the rubber band is not uncommon and takes time to gear up.
  • You may want to tape the rubber band on for some students. It's a speedy thing to answer, and younger students tend to struggle with information technology.
  • If a student is having disoblige loading the cork launcher, show him/her how to load it in 3 stairs operating room less, i.e. 1. Give the rocket launcher in one reach and use that hand over to open the clothespin 2. Use of goods and services two fingers to pull the rubber band posterior into the clothespin 3. Dismissal the clothes peg, then the elastic band.

2 People Made This Project!

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