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E.B.T.R. Clone for Dirt

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by jmcguire58, Mar 10, 2017.

  1. jmcguire58

    jmcguire58 New Member

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    Hi, I'm new to all this and I'm sure I'll be doing reading and searching through threads over the next few months, but I wanted to share what I have planned and what I'm hoping to accomplish with my build.

    I grew up racing dirt late models and with the advances in VR and the fact that iRacing seems really dedicated to their upcoming dirt series I figured it was time to build a sim. Anyone familiar with the suspension on a dirt late model should understand how important a realistic motion sim is to get the feel of the car, how its hooking up, and where the cushion is.

    My plan is to use 2 SCN5's with a u-joint under the cockpit. After looking through many DIY builds I found the E.B.T.R. which I'm thinking of using to start my design.

    Project_2D00_EBTR_2D00_Full_2D00_1200_5F00_6FCF5404.jpg

    Since I don't have any experience with simulators, I'm open to any and all suggestions. My top priority is getting feedback from the car, not necessarily feeling g-force/braking/acceleration, rather to get a good idea of how the car is setting up in the corners, how smooth the car is rolling in and how much the front is lifting on exit. I'd like to add some kind of traction loss to this design but I don't know how well the game will the at relaying the difference between a "controlled slide" and the feeling of losing traction on dirt.

    Any suggestions or recommended reading are appreciated!

    iRacing-Dirt-Track-Racing-Game-Update-January-2017.jpg
    jmcguire58, Mar 10, 2017
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    The following are observations and suggestions, not criticisms, the EBTR design would work but likely could be improved.

    I have no experience with the EBTR, but it looks to be a fairly hefty top frame, even for a full frame design.

    There are options other than the SCNs. Quality DC motors are more powerful and a lot quieter, the SCNs in full song sound like a cage full of demented budgies.

    If you like what can be done with a project inspired by an existing offering check out @Milton's rig : https://www.xsimulator.net/community/threads/cxc-inspired-design.7709/

    Also a look at existing member builds, that may help you refine your own project ideas: http://www.xsimulator.net/community/forums/diy-motion-simulator-projects.22/

    You will find plenty to get you started in the FAQs, from design software, dimension of sims, to PSUs, pots, motors, JRKs, Arduino code and Motor Monsters, plus heaps more: http://www.xsimulator.net/community/faq/

    We have a glossary for all those acronyms we tend to use, which will help you decipher some descriptions: http://www.xsimulator.net/community/faq/glossary-of-acronyms-and-names.66/
    noorbeast, Mar 10, 2017
    #2
  3. SeatTime

    SeatTime Well-Known Member

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    My Motion Simulator:
    AC motor, Motion platform
    I don't know what your budget is, but for what you want to do a G-seat and a Direct Drive wheel would work a treat. The EBTR looks to have sound deadening boxes around the actuators and the frame from its design is maybe made of aluminium.
    Last edited: Mar 11, 2017
    SeatTime, Mar 11, 2017
    #3
  4. jmcguire58

    jmcguire58 New Member

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    Thanks, one of the main things I want is to have the pedals and steering wheel move with the seat. I'm less concerned with the noise, just looking for the most realistic feedback from the car.
    jmcguire58, Mar 11, 2017
    #4