1 / 13

Scratch Robots

Scratch Robots. Catapult. Premium Quality Junk Modules. Catapult – Step 1. Parts: - 8.5” x 11” cardboard - 4”x6” Foamie - 1 Starbucks straw - 4 Starbucks coffee stirrer sticks - Paper clip 8” string Tools: Scissors Ruler Tape Hot Glue Gun. www.build-it-yourself.com.

basil-bird
Download Presentation

Scratch Robots

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Scratch Robots Catapult

  2. Premium Quality Junk Modules Catapult – Step 1 • Parts: • - 8.5” x 11” cardboard • - 4”x6” Foamie • - 1 Starbucks straw • - 4 Starbucks coffee stirrer sticks • - Paper clip • 8” string • Tools: • Scissors • Ruler • Tape • Hot Glue Gun www.build-it-yourself.com

  3. Premium Quality Junk Modules Catapult – Step 2 Base: Cut the cardboard base and strengthen it by hot gluing coffee stirrer sticks. Each line on the green mat is 1” square. Therefore the base is 3” x 5”. www.build-it-yourself.com

  4. Premium Quality Junk Modules Catapult – Step 3 Arm parts and rubber band stops. www.build-it-yourself.com

  5. Premium Quality Junk Modules Catapult – Step 4 Base rubber band stops: Hot glue foam strips on the middle coffee stirrer stick on the base. www.build-it-yourself.com

  6. Premium Quality Junk Modules Catapult – Step 5 • Arm-1: • Cut the rubber band strips and hinge parts. • Hot glue half of hinge on arm stick. www.build-it-yourself.com

  7. Premium Quality Junk Modules Catapult – Step 6 Arm-2: Hot glue the 2nd half of the hinge on the arm. Measure and mark the middle of the base. www.build-it-yourself.com

  8. Premium Quality Junk Modules Catapult – Step 7 Arm-3: Hot glue arm hinges on the base. www.build-it-yourself.com

  9. Premium Quality Junk Modules Catapult – Step 8 Arm-4: Hot glue the rubber band strip on the arm. It should be positioned so it aligns with the rubber band strip on the base coffee stirrer stick www.build-it-yourself.com

  10. Premium Quality Junk Modules Catapult – Step 9 • Rubber bands. • One rubber band will act as the arm spring. • The other rubber band will act as the arm stop to control the throwing trajectory. • You can twist the rubber bands to control the spring strength and arm stop position. www.build-it-yourself.com

  11. Premium Quality Junk Modules Catapult – Step 10 Hand-1: Collect these parts to start the catapult hand (or bucket). www.build-it-yourself.com

  12. Premium Quality Junk Modules Catapult – Step 11 1) 2) • Hand-2: • Cut a slit in the top of the hand • Overlap the slit sides to make a pocket. Hot glue. • Hot glue the foam piece so it wraps around the straw. • Slip the straw hand over the coffee stirrer stick arm. Tape it to the arm. • Experiment with arm/hand length. 3) www.build-it-yourself.com

  13. Premium Quality Junk Modules Catapult – Finished!!!!!! • Catapult Trigger • Attach a string to pull the paper clip and release the catapult arm. • Hold the catapult arm down to the middle coffee stirrer stick with paper clip that has been opened. • Tape the base coffee stirrer sticks to a platform. This will keep the catapult stable. www.build-it-yourself.com

More Related