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FISS v4 (Final Version)

Discussion in 'MS' started by Drew, Aug 26, 2018.

  1. Drew

    Drew Carbon Fiber Dust

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    I want to stop doing MS suspension, so I'm going to try making this my last.
    I already started it some weeks back, just didn't post it yet. The idea for this is to use mono shock for both front and rear wheels.

    In order to remove as much clutter from the underside of the chassis, I decided to bake the lower swing arm into the rear bumper, rather than attach it using multiple items. Also, as the suspension is going to be mono shock, there's no need for any shock mounting point on the underside of the chassis as it will all be top side.

    I won't elaborate, the pictures are pretty self explanatory and I've been through a lot of this a few times in the previous builds.

    38841192_289913318480906_7398620718331592704_n.jpg 38916149_289913308480907_3446015831115300864_n.jpg 38985030_292079201597651_4834378917378785280_n.jpg 38997042_292079231597648_7367253464067342336_n.jpg 39000238_292079081597663_6084832433423777792_o.jpg 39200160_293435058128732_8942324740102553600_o.jpg 39181557_294470731358498_2308410987339841536_n.jpg 39145607_295652487906989_890465029629935616_n.jpg 39234663_295652537906984_6518324599300554752_n.jpg 39391933_298043801001191_1289061303486251008_o.jpg 39504517_298816924257212_8530083415276388352_n.jpg


    Here's what I'll be going with in the end.
    39504606_298816930923878_6935265056435208192_n.jpg

    I need this brace (red arrow) to keep the attachments from splaying. This will keep the top pivot mounts and shock straight.....or at least straighter.

    39401668_298943707577867_9006725605747589120_o.jpg 39536049_298943634244541_4534900077713424384_n.jpg 40048351_306475866824651_5083597830703022080_n.jpg 40139638_306475870157984_500472399901229056_n.jpg


    Just waiting on fresh parts to be able to finish this. Will get back to it later.
     
  2. Drew

    Drew Carbon Fiber Dust

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    Finally finished the suspension, just need to finish the axles and wheels.

    I did make a bit of a blunder and had to improvise a touch, but it's worked out fine, it's the same as intended, just the shocks are a little wider than I wanted.

    20180902_002410.jpg 20180902_002709.jpg 20180902_002734.jpg 20180902_002745.jpg 20180902_002800.jpg 20180902_002811.jpg 20180902_002821.jpg
     
  3. Drew

    Drew Carbon Fiber Dust

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    Cut some axle so I could put some wheels on temporarily to balance the car, which meant a whole day just assembling and disassembling the shocks so I could raise the frp so it shouldn't interfere with the dogbone later. Also did a quick video look over and drop test.


    20180902_181751.jpg 20180902_181834.jpg 20180902_181914.jpg 20180902_181953.jpg

     
    David S. likes this.
  4. Drew

    Drew Carbon Fiber Dust

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    Finally finished off the chassis. Only needs a shell and rollers, so this build is pretty much done.
    I finished off the dogbones, they definitely show I was lazy to make them (lack of shaping), but they work.
    I also added some 1mm cuts of rubber roller rings into some of the cups to balance out the dogbones once mounted.
    And lastly, I trimmed a little bit of the frp bumper brace (the one reinforcing the bumper) to have a little more clearance near the dogbones/cups. You'll be able to notice it on one of the close ups showing the front side of the suspension set up.

    20180909_164244.jpg 20180909_171107.jpg 20180909_171056.jpg


    Here's the final setup, it's definitely the best FISS I've made to date.

    20180909_175810.jpg 20180909_175901.jpg 20180909_175840.jpg 20180909_175916.jpg 20180909_180040.jpg 20180909_175934.jpg 20180909_180125.jpg 20180909_180112.jpg 20180909_180137.jpg
    If you look carefully, just behind the upright and above the cup, you'll see the trimmed frp I mentioned at the top of the thread. Also, yes I know it's a lot of washers, but I was running out of spacers, so these work just as well.

    20180909_175825.jpg 20180909_175956.jpg 20180909_180005.jpg



    And finally, a small demo vid with a couple drop tests and powered.

     
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