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    Re: How to design and build A-Arm suspension
    #11
    J.M. Action Figure flyerrider's Avatar
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    Deaner: there was a typo in step 8. I corrected it to say lower a-arm "outer" pivot. All you are doing with this step is making your lower arm Arc.

    Sorry I haven't followed up my post this week. I've been super busy with work.
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    Re: How to design and build A-Arm suspension
    #12
    Senior Member deaner's Avatar
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    Flyerrider, thanks for the clarification. I still don't get how you take roll center into consideration.
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    Re: How to design and build A-Arm suspension
    #13
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    I'm trying to redesign the front suspension on my barracuda because its not god enough for the racing I'm trying to do. Just a quick couple of questions .

    1. Where do I want my roll centre to be? What is considered good and what is considered bad?
    2. Akerman on no Akerman? Is the intersection of the front spindle arm and KPI at the same angle as the upswept nose or parallel to the chassis if that makes sense?

    My understanding is for steering arms mounted n the front of the spindle, you project a track length line in front of the buggy and this is where the lines that go through the KPI and the steering arm should intersect?

    Thanks.





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    Re: How to design and build A-Arm suspension
    #14
    The Bob Ross of MBN Bullnerd's Avatar
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    Deaner ,read the post that I posted (allow myself to introduce...myself) by Damien,he mentions a common approach to roll center.
    "Speed is time-time is speed"-Dennis Hopper

    Quote Originally Posted by TALON View Post
    did you use a special bigfoot camera or something ,you know all blurry could be a tree stump kinda thing .
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    Re: How to design and build A-Arm suspension
    #15
    Bend-Tech Dragon Master
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    Quote Originally Posted by Iggsy View Post
    I'm trying to redesign the front suspension on my barracuda because its not god enough for the racing I'm trying to do. Just a quick couple of questions .

    1. Where do I want my roll centre to be? What is considered good and what is considered bad?
    2. Akerman on no Akerman? Is the intersection of the front spindle arm and KPI at the same angle as the upswept nose or parallel to the chassis if that makes sense?
    ]
    Unless its an all out dez car, you'll need some Ackerman ...
    For steering rods I draw 3 spindles, one bump-one ride height-one droop.
    Make sure you copy the tie rod locations.
    Then veiwing plane parallel to the suspension draw a 3 point arc thru the centers of the spindle steer heim joints. The center of this circle will be your tie rod location.
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    Re: How to design and build A-Arm suspension
    #16
    The Bob Ross of MBN Bullnerd's Avatar
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    "Speed is time-time is speed"-Dennis Hopper

    Quote Originally Posted by TALON View Post
    did you use a special bigfoot camera or something ,you know all blurry could be a tree stump kinda thing .
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    Re: How to design and build A-Arm suspension
    #17
    Bend-Tech Dragon Master
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    'cept thats for a rear steer
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    Re: How to design and build A-Arm suspension
    #18
    Bend-Tech Dragon Master
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    Re: How to design and build A-Arm suspension
    #19
    The Bob Ross of MBN Bullnerd's Avatar
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    Yeah that was for a guy doing a Pilot.
    "Speed is time-time is speed"-Dennis Hopper

    Quote Originally Posted by TALON View Post
    did you use a special bigfoot camera or something ,you know all blurry could be a tree stump kinda thing .
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    Re: How to design and build A-Arm suspension
    #20
    Senior Member deaner's Avatar
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    Quote Originally Posted by Bullnerd View Post
    Deaner ,read the post that I posted (allow myself to introduce...myself) by Damien,he mentions a common approach to roll center.
    Thanks, I read it but he doesn't say much about roll center. I'm going to read it again.
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