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New 2dof project, testing with model

Discussion in 'DIY Motion Simulator Projects' started by Buzzoom357, Dec 30, 2018.

  1. Buzzoom357

    Buzzoom357 New Member

    Joined:
    Dec 28, 2018
    Messages:
    3
    Balance:
    84Coins
    Ratings:
    +3 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Ok, here are my plans,

    My pneumatic simulator was nice to realize but the movements were a little too smooth so I always had in mind to make a simulator a little more precise and less noisy because the compressed air is not great.


    Here's what I want to do:

    -a 2DOF prototype with RC servos and an arduino (I currently have the equipment at home)

    -a 2nd prototype with small gear motor (yellow 3-6v DC ...) + H-Bridge L298N + arduino and potentiometer (10Kohm)

    -a test bench with the engines of ice wiper and it is only at this moment that I could start the mechanics.

    The purpose of these steps is to take the time to understand the software and not to invest in actuators and electronics without guarantee of results.


    For my 1st prototype I get to move the two RC servos with Game Engine and Output Testing but I have a problem with the Axis2a servo, it works well from -31% to + 100% but from -32 to -100% it's anarchy!

    I use RCModelSimToolsMode for the arduino and here are my settings in interface:

    ComPort: Com5 (it's the good one)

    BitsPerSec: 9600

    Data Bits: 8

    Parity: None

    Stop Bits: 1

    Out- Bit Range: 8 (Decimal)

    Interface - Output: R <Axis1a> ~ L <Axis2a> (10ms)


    Can you help me solve this first problem?
    • Like Like x 1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
    20,461
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    144,596Coins
    Ratings:
    +10,741 / 52 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
  3. Buzzoom357

    Buzzoom357 New Member

    Joined:
    Dec 28, 2018
    Messages:
    3
    Balance:
    84Coins
    Ratings:
    +3 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    It's good I found the problem

    I use the code ''RCModelSimToolsMode''

    In output interface it's necessary to write "R <Axis1a> ~ L <Axis2a> ~ F <Axis3a>" and not "R <Axis1a> ~ L <Axis2a>"

    As I only use 2 servos at the link of 3 I did not write the F <Axis3a> and siding it was a problem.

    Thank you I can continue now.
    • Like Like x 2