#MAKERSPACE AFICIONADO & ADVOCATE
  • Home
  • MakerEd is
  • the journey
  • Services
  • Presentations
    • Maker Centered Learning
    • MakerSpaces not just a room
    • Low Cost Low Tech Maker Materials
    • MakerMarketSchool
    • microbit
    • ScreenCasting >
      • what is it
      • examples
      • why do this
      • how to make them available
      • recording tools
      • microphones
      • web hosting
      • iPad options
      • tips
      • resources
    • Student Voices For Assessment >
      • Why
      • StudentVoicesExamples
      • Tools to Create
      • TurningInTheWork
      • TechnicalIssues
      • OtherIdeas
      • YourTurn
    • Tweet Yourself Right
    • Educational Vision of Calvin & Hobbes
    • Wearables
  • me
    • Resume
    • playtime
  • Maker Resources
  • Maker Van
  • Coding&Robotics
    • MakeCode
    • microbit
    • Makerbit
    • bitbooster
    • CRICKIT
    • kittenbot
    • CircuitPlaygroundExpress
    • Edison
    • FiriaLabs
    • VEX
  • CardboardConnectors
  • resonance
    • books
    • videos
    • education & science issues

Shake Table

2/23/2021

0 Comments

 
In 8th grade science, we are studying plate tectonics and earth features, so earthquakes come up. I was having them research the idea of earthquake resistant design...and some were doing it, but most were not. I know I wanted them to build...but pandemic. After some discussions with other teachers, we decided we could do it safely. So I needed a shake table (the school has one, but the other teacher wants to do it also and I dont want to go up & down stairs to share). I built 2.

materials to make 2
2 - 3/4" pvc (10' ; 8' would work)
8 - elbows (10 pack)
16 - 3/16" x 2" eye bolts (nut included)
16 - s-hooks
rubber bands or springs
2 - 12"x12" board
marbles
round plastic ring (top from frosting can or margarine tub)

I cut the PVC into 20" pieces (8)
I drilled a 3/16" hole, 3 inches away from midpoint on either side for each piece (2 holes per piece) all the way through both sides of the pvc
I cut boards to 12"x12". I had some scrap, 3/4" mdf.
I am wondering in 1/4" would be "better"?
I wouldnt go thicker than 3/4"
I drilled 2 holes per edge, about 4 inches from center on the side, about 3/4" in from edge
I wanted the bands/springs to NOT be perpendicular to board/pvc (which is why on pvc holes are 3" from center and boards 4" from center)

To assemble
- feed the eye bolts through the holes in the 20" pvc pipes
- attach (4) 20" pieces and (4) elbows to make a "square"
- thread rubber bands through the holes in the board and loop through itself.
- if the eyebolts are facing "in" , use s-hooks to attach rubber bands to eyebolts
You can rotate the PVC so the eyebolts are up, or even pointing outwards. In this case you do not need the s-hooks
- put marbles in the plastic top, slide underneath board to the center. This keeps it off the table, counter and reduces friction. This is especially important if using rubber bands as they would be touching the table/counter.

With mine, if you pull the board sideways, then release it, it shakes well at first but dies quickly. I wonder if springs work make shaking last longer since they have a push AND a pull.
Pulling a corner diagonally, the vibrations last longer. 
They also last longer if you twist a corner, then release.
A couple of students just did the shaking manually, literally shaking the shake table.
That worked fine.

0 Comments

Your comment will be posted after it is approved.


Leave a Reply.

    Archives

    December 2022
    November 2022
    September 2022
    August 2022
    July 2022
    May 2022
    April 2022
    March 2022
    February 2022
    January 2022
    December 2021
    July 2021
    June 2021
    April 2021
    March 2021
    February 2021
    November 2020
    October 2020
    March 2020
    February 2020
    January 2020
    December 2019
    November 2019
    October 2019
    September 2019
    August 2019
    July 2019
    June 2019
    May 2019
    April 2019
    March 2019
    February 2019
    January 2019
    December 2018
    November 2018
    October 2018
    August 2018
    July 2018
    June 2018
    May 2018
    March 2018
    February 2018
    December 2017
    September 2017
    August 2017
    July 2017
    May 2017
    March 2017
    August 2015
    July 2015
    June 2015
    August 2012
    July 2012

    Categories

    All

    RSS Feed

      Want to talk more?

    Submit
Proudly powered by Weebly
  • Home
  • MakerEd is
  • the journey
  • Services
  • Presentations
    • Maker Centered Learning
    • MakerSpaces not just a room
    • Low Cost Low Tech Maker Materials
    • MakerMarketSchool
    • microbit
    • ScreenCasting >
      • what is it
      • examples
      • why do this
      • how to make them available
      • recording tools
      • microphones
      • web hosting
      • iPad options
      • tips
      • resources
    • Student Voices For Assessment >
      • Why
      • StudentVoicesExamples
      • Tools to Create
      • TurningInTheWork
      • TechnicalIssues
      • OtherIdeas
      • YourTurn
    • Tweet Yourself Right
    • Educational Vision of Calvin & Hobbes
    • Wearables
  • me
    • Resume
    • playtime
  • Maker Resources
  • Maker Van
  • Coding&Robotics
    • MakeCode
    • microbit
    • Makerbit
    • bitbooster
    • CRICKIT
    • kittenbot
    • CircuitPlaygroundExpress
    • Edison
    • FiriaLabs
    • VEX
  • CardboardConnectors
  • resonance
    • books
    • videos
    • education & science issues