1. Do not share user accounts! Any account that is shared by another person will be blocked and closed. This means: we will close not only the account that is shared, but also the main account of the user who uses another person's account. We have the ability to detect account sharing, so please do not try to cheat the system. This action will take place on 04/18/2023. Read all forum rules.
    Dismiss Notice
  2. For downloading SimTools plugins you need a Download Package. Get it with virtual coins that you receive for forum activity or Buy Download Package - We have a zero Spam tolerance so read our forum rules first.

    Buy Now a Download Plan!
  3. Do not try to cheat our system and do not post an unnecessary amount of useless posts only to earn credits here. We have a zero spam tolerance policy and this will cause a ban of your user account. Otherwise we wish you a pleasant stay here! Read the forum rules
  4. We have a few rules which you need to read and accept before posting anything here! Following these rules will keep the forum clean and your stay pleasant. Do not follow these rules can lead to permanent exclusion from this website: Read the forum rules.
    Are you a company? Read our company rules
Shared accounts will be removed Plugin Downloads Zero spam policy Forum Rules

Unicorn 6dof vs Knaufinator's stewart platform?

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Mmm, Nov 25, 2025 at 11:21.

?

Which is more suitable for my first car racing motion platorm?

  1. Peacemaker's Unicorn

    1 vote(s)
    50.0%

  2. Knaufinator's AC Servo stewart rig

    1 vote(s)
    50.0%
  1. Mmm

    Mmm New Member

    Joined:
    Nov 16, 2025
    Messages:
    5
    Location:
    UK
    Balance:
    52Coins
    Ratings:
    +0 / 0 / -0
    My Motion Simulator:
    6DOF
    Hi All,
    I am gradually gearing up to start my own build. I am absolutely blown away by the good work and the amount of experience shared on this forum.
    I am particularly inspired by Knaufinator's and Peacemaker105's rigs.
    Two concepts and both seem to work great!
    I need to decide which way to go considering that I am only really intersted in driving sims and not so much in flight sims.

    Can the community please advise on what to chose considering the below factors?

    1. cost
    2. build difficulty
    3. ongoing maintenance
    4. longetivity of components
    5. size of the complete build
    6. Upgrade friendliness (extra bits like belt tensioners etc)
    7. Configuration and software support

    I would appreciate your input.
    Thank you.
    Mmm, Nov 25, 2025 at 11:21
    #1
  2. Joe Cortexian

    Joe Cortexian Active Member Gold Contributor

    Joined:
    Sep 8, 2021
    Messages:
    238
    Balance:
    1,423Coins
    Ratings:
    +61 / 1 / -0
    My Motion Simulator:
    3DOF
    Never seen this before interesting project. Didn’t really find any details on the mechanical hardware aka 50:1 planetary gears. He did say it was $5000. I have never seen a planetary gears that can handle the required torque cheap.

    Since you are new to this I would suggest starting with something a little less ambitious. For much less money you could put together a two axis rocker (weight rests on ujoint) or three axis rig. You could build just two of his actuators and get a better feeling for how much money, time and effort you want to invest. The only thing you waste here is the ujoint.

    You could answer questions like does it make you sick? Is it too laggy to be any fun? Do I enjoy working on this? For me it’s no, sometimes yes. You can buy a controller from Thanos which would save a ton of time and is made for this.
    Joe Cortexian, Nov 27, 2025 at 14:50
    #2