Monday, 1 August 2011

Tomi timer trigger



Ever since i started water rocketry i have always used tomi timers due to there reliability, size, and cost but there has always been a problem how to delay the timer while the rocket is being pressurized then finding a way of triggering the timer when the rocket is launched. I have tried using air flaps but they were never reliable and i have lost many rockets due to it not triggering the timer at launch so i came up with a new way of holding the timer i think these pictures will explain better then words.
Items i used:
1x fiberglass tube (old fishing rod)
1x small square of bottle pet
1x coat hanger or similar wire
small amount of sikaflex glue
electrical tape
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4 comments:

  1. Unknown1 August 2011 at 12:58

    Hey Dan,

    I'm a little confused, is the device designed to fall off at launch? or is attached to the launch pad?

    I hope the flights go well for you and im liking the new rocket :)

    Regards Doug

    ReplyDelete
    Replies
    1. Robotics Education Development in India12 May 2022 at 22:04

      Hi
      Friend You are Invited For Water Rocket Competition
      More Information Visit and Join Club
      https://www.facebook.com/groups/551771103028274/?ref=share
      https://www.technoxian.com/event/water-rocket/

      Delete
  2. dan b1 August 2011 at 23:18

    The trigger falls off at launch due to the air flap it also can be tied to the launcher
    Dan B

    ReplyDelete
  3. Robotics Education Development in India12 May 2022 at 22:03

    Hi
    Friend You are Invited For Water Rocket Competition
    More Information Visit and Join Club
    https://www.facebook.com/groups/551771103028274/?ref=share
    https://www.technoxian.com/event/water-rocket/

    ReplyDelete

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