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  1. Thread: Fsg 2018

    by Fyhr
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    3,091

    I'm impressed by all the autonomous teams, doing...

    I'm impressed by all the autonomous teams, doing slow safety runs or all out.

    The normal competition seems to throw some potential upsets too, does anyone have an unofficial points summary before...
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    We ran into overtemperature protection on the...

    We ran into overtemperature protection on the battery management system (yes for 12 V) on lap 19. Sad, but preferable to a fire.
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    I can't wait to read your reaction to the FSUK...

    I can't wait to read your reaction to the FSUK autonomous plans once they officially surface.

    Meanwhile, here's a DASD, it consists of a Cane-creek double barrel, a threaded piece of aluminium, a...
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    7,846

    A very unofficial points summary here:...

    A very unofficial points summary here:
    https://drive.google.com/file/d/0B4HO3O6GTjFlclpkbkRPbUNtYlE/view?usp=drivesdk
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    Here is a decent overview of the axle. Results...

    Here is a decent overview of the axle.

    Results so far:
    8th design, 49 cost, 9 business, 7 skid (3rd best time 5.2x had cones), 15 the accel (poor for the car, has run 4.1), 4 Sprint.

    Shoot any...
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    There are many ready-to-use systems:...

    There are many ready-to-use systems: http://www.skf.com/us/products/vehicle-aftermarket/automotive/wheel-end/hub-bearings-and-kits/index.html

    The one used in Lotus Elise S2 should be one of the...
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    I'd also like to thank you for these...

    I'd also like to thank you for these contributions, the Lund team will use this.

    And I'm planning to test my own car, as soon as winter lets go of its crippling grip.
  8. Replies
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    Classical mechanics teaches us that this movement...

    Classical mechanics teaches us that this movement increases the forces in the lower A-arm by a factor of however much closer to the wheel center it is. And a symmetrically spread toe-base like this...
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    The left one used inboard rotors, the wheels...

    The left one used inboard rotors, the wheels mount straight to the hub, see attached image. I don't recall the exact bearing number, but they are SKF deep groove ball bearings, you should of course...
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    We've had this solution for many years, it works...

    We've had this solution for many years, it works well. Now I missed the "lid" in my quick picture-grab yesterday, but it solves both your points, stopping rotation and axial motion. It also...
  11. Thread: 2014 fsuk

    by Fyhr
    Replies
    48
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    17,519

    I guess I have to stick up for my guys...

    I guess I have to stick up for my guys
    http://www.racecar-engineering.com/wp-content/gallery/lund_1/zuplun0.jpg
  12. Thread: negative kingpin

    by Fyhr
    Replies
    4
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    1,896

    How much scrub are you aiming for? How does...

    How much scrub are you aiming for?

    How does the negative KPI influence required steering effort?
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    There are lots of ready made products available...

    There are lots of ready made products available for you to use, including recommended mounting configurations and so on. Here is one example http://isrbrakes.somee.com/products/brakediscs/ we've used...
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    It is also good to make sure that the catch can...

    It is also good to make sure that the catch can opening is pointing upwards-ish!
  15. Thread: no barrel sensor

    by Fyhr
    Replies
    25
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    4,087

    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Bemo:
    Lol, except keeping it simple ...
  16. Thread: no barrel sensor

    by Fyhr
    Replies
    25
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    4,087

    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by shark.ashwa:
    <BLOCKQUOTE class="ip-ubbcode-quote"><div...
  17. Thread: no barrel sensor

    by Fyhr
    Replies
    25
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    4,087

    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Jon Burford:
    <BLOCKQUOTE class="ip-ubbcode-quote"><div...
  18. Thread: scrub radius poll

    by Fyhr
    Replies
    27
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    9,650

    Please excuse my attempt at being funny, I'll try...

    Please excuse my attempt at being funny, I'll try to provide serious input.

    Yes, very desirable, are there negative effects?
    A larger toe base may lead to a smaller distance between wheel center...
  19. Thread: scrub radius poll

    by Fyhr
    Replies
    27
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    9,650

    The only trick you need to convince Pat is: Large...

    The only trick you need to convince Pat is: Large toe-base (say 100mm), large mechanical trail (mmm, self aligning goodness! (100mm) and give it a horribly large rear scrub (100mm?) for an acceptable...
  20. Replies
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    I've seen hydraulic drive systems in BajaSAE. ...

    I've seen hydraulic drive systems in BajaSAE. The accumulators are required to be at zero charge at the start of any event. I would expect the FSAE powers to enforce the same. Makes it pretty...
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    39,313

    Will you offer your assistance in the design of...

    Will you offer your assistance in the design of the gearbox (CVT?) to couple the diesel to the flywheel? http://fsae.com/groupee_common/emoticons/icon_wink.gif
  22. Thread: scrub radius poll

    by Fyhr
    Replies
    27
    Views
    9,650

    We've also run 25mm for a long time, with 0 deg...

    We've also run 25mm for a long time, with 0 deg KPA.

    A recent video of the tyre under load makes me question the accuracy and effect of our static scrub though:...
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    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Kyle "steering and suspension":
    note those clevisis...
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    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Kyle "steering and suspension":
    looks great, any...
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    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Fyhr:
    [QUOTE]Originally posted by Kyle "steering and...
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