Subscribe Unsubscribe
Name (required)
Email (required)
Company (required)

 Subscribe Unsubscribe
Name (required)
Email (required)
Company (required)

Linear Flexible Joint on Seesaw

Linear Flexible Joint on Seesaw

Design a control system to balance a seesaw using a flexible structure mounted atop of it.


A freely rotating seesaw is mounted on an instrumented fulcrum. A powered cart driving a non-powered mass via a spring is mounted on the seesaw. Both carts travel freely along the length of the seesaw. The powered cart is driven by a rack and pinion mechanism using a 6V DC motor, ensuring consistent and continuous traction. The cart slides along a stainless steel shaft using linear bearings. The cart position is measured using a sensor coupled to the rack via an additional pinion.

The objective is to design a controller that maintains the seesaw balance by driving the carts back and forth. The system is supplied with a state feedback controller. You may design any other controller you wish.


Undergraduate – second course / Graduate / Project / Research

Linear Product Range

  • flex-joint

    Flexible Joint

  • flexJoint-invertPendulum

    Flexible Joint with Inverted Pendulum

  • inverted-pendulum

    Inverted Pendulum

  • Linear--dlb-Inverted

    Linear Double Inverted

  • Linear Flexible Inverted Pendulum

  • flexJoint-seesaw

    Linear Flexible Joint on Seesaw

  • seesaw


  • seesaw-pendulum

    Seesaw Pendulum


Windows Media Low (944 kb) High (2 Mb)
QuickTime Low (1.8 Mb) High (2.8 Mb)


iMath Asia
i-Math was incorporated in 2001 as an organization dedicated to delivering innovative high precision mathematical and control software solutions to the Educational, R&D, Engineering and Manufacturing industries in the ASEAN Region.

We offer unique and pioneeing 'state of the art' hardware and software solutions for business and educational needs.
Singapore's Office
i-Math Pte Ltd (HQ)
10 Ubi Crescent, #06-37, Ubi TechPark, Lobby C
Singapore 408564

Tel: (65) 6742 1250
Fax: (65) 6742 1440

Malaysia's Office
i-Math Sdn Bhd (686949-w)
A1-3A-49, Block A1, Leisure Commerce Square, No. 9, Jalan PJS 8/9, 46150, Petaling Jaya, Selangor, MALAYSIA

Tel: +603-78757222
Fax: +603-78757227