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Hot Rods The No Frame Model A Modified

Discussion in 'The Hokey Ass Message Board' started by rottenleonard, Sep 22, 2017.

  1. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,935

    rottenleonard
    Member

    I recently came up with a running and model A chassis, not really sure what I had planned for it I put together some of the pieces that I had laying around. I formed up this Model A Roadster pickup, and really it just didn't do anything for me.
    20170825_163407.jpg
    In truth I probably should have just went forward with it after all was just a flip project, but I prefer to just let my mind wander little bit and make a project that I was actually excited about. So I extracted all the drivetrain running gear from the model A chassis. And set the frame out against the fence. After I had all the pieces on the chassis table and mocked up I came up with a perimeter frame that resembles a Lakes modified made from 1 inch square tubing. The Late Model Model A Grill shell was just too tall so I swapped it out for a 28 29 Grill shell and radiator.
    IMG_20170921_180251_640.jpg

    To really do this right I needed to get my English Wheel Parts out of the attic that I have had for probably over 10 years and never fabricated the pieces to use them.
    20170919_134646.jpg

    20170919_134624.jpg

    First few attempts at metal shaping on the Wheel.
    20170919_145828.jpg
    20170919_150544.jpg
     
  2. I'll bite! Subscribed!!!!
     
  3. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,935

    rottenleonard
    Member

    Design and mockup of parts using .060 aluminum. Cut a piece, fold it up and learn what you need to, adjust the CAD drawing and cut another....makes for interesting scrap
    IMG_20170922_081503_896.jpg IMG_20170922_081503_895.jpg IMG_20170922_080502.jpg
     
  4. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,935

    rottenleonard
    Member

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  5. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,935

    rottenleonard
    Member

    The Mockup pieces including standins for the friction shocks, through the welded front spring hanger.
    20170925_095512.jpg 20170925_133621.jpg 20170925_150542.jpg
     
  6. Ebbsspeed
    Joined: Nov 11, 2005
    Posts: 4,658

    Ebbsspeed
    ALLIANCE MEMBER

    Subscribed. Interesting approach, and the workmanship looks great so far.
     
  7. fiftyv8
    Joined: Mar 11, 2007
    Posts: 4,728

    fiftyv8
    Member
    from CO & WA

    I'm in, nice to see someone thinking outside the box so to speak...
     
  8. Fabber McGee
    Joined: Nov 22, 2013
    Posts: 736

    Fabber McGee
    Member

    I'm signed on for the adventure. I'm enjoying this approach.
     
  9. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,935

    rottenleonard
    Member

    20170925_150542.jpg
    After a good sit and stare i decided that the side wings where I was at attatching my support struts was going to cause an issue with flexing and would require a ton of gusseting to make it work, therefore I decided to cut off those wings and attach my cross support structure differently.
    20170926_104914.jpg
    Plasma cut out some pockets in the back side.
    20170926_104932.jpg
    Cut out some brackets for the struts that would allow tge front structure to be removed from the motor plate.
    20170926_102225.jpg
    Bent 2 sides of a triangle from 1" x .125" for the support struts.
    20171002_111514.jpg
    While i think we are getting to where it will work I think I will keep thinking of a more elegant design.
    20171002_112855.jpg
     
  10. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,935

    rottenleonard
    Member

    Next step I built a substructure in side of the body to transfer the forces from the rear suspension to the front, I built these weld plates that bolt in at the motor plate so that the firewall/motor plate is still removable.
    20171004_095729.jpg

    The upper holes shown above will go through tubes which will sandwich the throttle bracket and into the block for a little extra support.
    20171004_095742.jpg
    If you can look through the Maze of square tubing you can kind of see how it is shaping up.
    20171005_091919.jpg

    This is a shot of how the rear spring will be supported. The gas tank will Mount above it and there will be a gusset to tie the top of the body into the substructure.
    20171005_094527.jpg
    The rear suspension is triangulated into the floor assembly and this transfers up to the transmission and this is how it will tie into the back of the transmission.
    20171005_105133.jpg

    All of the holes in the gussets are for rosette welds.
     
  11. tfeverfred
    Joined: Nov 11, 2006
    Posts: 15,796

    tfeverfred
    Member

    Looks good!
     
    kidcampbell71 likes this.
  12. Impressive! I'm in.
     
  13. King ford
    Joined: Mar 18, 2013
    Posts: 1,211

    King ford
    ALLIANCE MEMBER
    from 08302

    Super trick Leonard! I take it you are going to weld a steel " skin" over the structural skeleton to add some additional rigidity?
     
  14. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,935

    rottenleonard
    Member

    Thanks fellas,
    It will be on the bottom but around the outside the body work will be screwed on heavily, and there will be an inner skin also.
    Here is how the rear spring is shaping up. I ditched every other leaf as a starting point. 20171007_141842.jpg
     
  15. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,935

    rottenleonard
    Member

    Working on the steering a little I found that the stock tie rods would nearly pass above the spring, and at full lock left no room for a cooling fan.

    20171006_111311.jpg
    Back to the sit and stare
    20171006_110026.jpg
    Turned the whole assembly upside down, this cured the spring clearance issue but required cutting off the drag link arm.
    20171006_110637.jpg
    To fix the fan clearance issue, I turned these inch and 3/4 spacers to go between the tie rod arm and the spindle. I machine them to an interference fit.
    20171009_142601.jpg

    20171009_143952.jpg
    I cut the threads off the original steering arm
    20171009_144033.jpg
    I probably got a little bit greedy with the interference fit and nearly didn't get them drove all the way on, but finally got them driven home.
    20171009_143122.jpg
     
    DylanHill1931, Stogy and AHotRod like this.
  16. too many fords
    Joined: Jul 1, 2015
    Posts: 98

    too many fords
    Member
    from Las Vegas

    I have no idea what's going on here,but I can't look away o_O
     
    eddie1, pitman, Frankie47 and 10 others like this.
  17. I'm in for this party....impressive work Rottenleonard :cool:
     
  18. fiftyv8
    Joined: Mar 11, 2007
    Posts: 4,728

    fiftyv8
    Member
    from CO & WA

    What is the reason/s why this style of build is being done.
    Cos you can or are you trying to save weight or whatever???
    I'm just trying to understand your philosophy behind it.
     
  19. gnichols
    Joined: Mar 6, 2008
    Posts: 10,460

    gnichols
    Member
    from Tampa, FL

    A Lotus 7 of hot rods? Sure looks interesting, and it should be very light, eh? I'm in! Gary
     
  20. Dam impressive work! This will be awesome. I'm tagging along....
     
  21. RidgeRunner
    Joined: Feb 9, 2007
    Posts: 791

    RidgeRunner
    Member
    from Western MA

    Along about post #10 Type 61 "Birdcage" Masaratti [sp?] from back in the day came to mind. Homemade cookie without the cutter, love the concept! Will be following for sure.

    Ed
     
  22. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,935

    rottenleonard
    Member

    Thank you!
    In part it is to make a light car, 40 hp will start to feel like something in a 1000lb car. Also i can make it relatively low without sacrificing leg room. And a good portion of it is what I like to call daydreaming in metal, it's in my head looks like fun...I want to drive it.
    Thanks!
     
  23. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,935

    rottenleonard
    Member

    20171009_150734.jpg the arms after tign on the extensions. The model a's use a square shoulder to keep them from spinning, this required a little additive manufacturing.

    20171009_153128.jpg and work with the hand held milling machine.

    20171009_154147.jpg 20171009_155502.jpg clearance at full lock looks much better

    20171009_155828.jpg clears the crank pulley when centered.


    20171009_155834.jpg

    Ackerman is pretty close too. 20171009_160633.jpg
     
    brEad, kiwijeff, Stogy and 4 others like this.
  24. fiftyv8
    Joined: Mar 11, 2007
    Posts: 4,728

    fiftyv8
    Member
    from CO & WA

    Great work and thanks for sharing your thoughts.
     
  25. Atwater Mike
    Joined: May 31, 2002
    Posts: 9,689

    Atwater Mike
    ALLIANCE MEMBER

    What happened to the KPI when reversing the spindles? Did you bend the axle near the king pin bosses?
    Superb machining and welding...
     
    Unkl Ian likes this.
  26. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,935

    rottenleonard
    Member

    Actually i just changed the steering arms side to side and upside down, the spindled are still in their stock location.
     
    Atwater Mike likes this.
  27. AHotRod
    Joined: Jul 27, 2001
    Posts: 10,284

    AHotRod
    Member

    Excellent craftsmanship and vision
     
    rottenleonard likes this.
  28. flynbrian48
    Joined: Mar 10, 2008
    Posts: 6,147

    flynbrian48
    Member

    Wow. I feel like such a hack. ;-)
     
    Frankie47 and rottenleonard like this.
  29. gnichols
    Joined: Mar 6, 2008
    Posts: 10,460

    gnichols
    Member
    from Tampa, FL

    I'm sorry to say I can't remember the fellow's name, but a very similar car was recently built down under (light green roadster). It was an amazing build, and you might get some tips from him. Anyone help with the link to the HAMB build files? Gary
     
    Last edited: Oct 11, 2017
  30. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,935

    rottenleonard
    Member

    I would like to see it for sure.
     

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