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Technical Hard chop: sitting on the chopping block

Discussion in 'Traditional Hot Rods' started by 65standard, Feb 21, 2024.

  1. clem
    Joined: Dec 20, 2006
    Posts: 4,570

    clem
    Member

    I am not a panel beater, but I have always wondered why most do it the way described below.
    To my mind, your way detailed above, is the more logical way.

    Thanks for all the great detailed photos.
     
    65standard likes this.
  2. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
    ALLIANCE MEMBER
    1. COE's (Cab Over Engine)

    3B0425F4-7380-4756-8BD3-38E7A360549C.jpeg 027F375D-B32F-4307-B6F8-108D9E166332.jpeg Anyone see the problem with just laying the post back and not the whole windshield surround?
     
  3. Happydaze
    Joined: Aug 21, 2009
    Posts: 2,262

    Happydaze
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    Possibly. The screen frame fit into the apperture at the bottom isn't going to work well, and / or the rubber lip seal isn't going to lie well on the body at the cowl.

    Tricky using pics that aren't chronological!

    Chris
     
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  4. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
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    1. COE's (Cab Over Engine)

    Not my car. Just showing what some people do on their chop. This technique will cause the ends of the windshield to stick out because it will be hitting in the center.
    Just noting something to watch out for.
     
  5. Is it fair to ask which hammer and dolly you used, thanks.
     
    The37Kid likes this.
  6. oj
    Joined: Jul 27, 2008
    Posts: 6,575

    oj
    Member

    Very nice work, not your first rodeo.
    You mention the rear window angled forward 3/4"? Can you expand on that?
     
    31chevymike likes this.
  7. That's a given. Anytime you're working with a panel that has 4 sides that must sit flat against it's mating surface any change in its position Must include all 4 surfaces as in how you are doing on your project. Well done, so far. So far I've only questioned one thing but sure when you get to it I'll understand the why. Keep up the quality work.
     
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  8. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
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    1. COE's (Cab Over Engine)

    On a straight chop the rear window appears straight up and down, or even appears to lean backwards at certain view angles. I will lean the back window forward kind of like a 33/34 ford, but not that much.

    I’m going to follow the forward lean of the B-pillar for my back window.
     
  9. Tim
    Joined: Mar 2, 2001
    Posts: 19,526

    Tim
    Member
    from KCMO

    Great thread so far!
     
    31chevymike likes this.
  10. choptop40
    Joined: Dec 23, 2009
    Posts: 5,734

    choptop40
    Member

    Me likey….
     
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  11. Happydaze
    Joined: Aug 21, 2009
    Posts: 2,262

    Happydaze
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    I was close, but no cigar! What you're describing is the same as what happens when laying back a roadster screen. A little isn't noticeable, but go too far.......

    Chris
     
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  12. GeeRam
    Joined: Jun 9, 2007
    Posts: 604

    GeeRam
    Member

    Impressive work.
    Impressive work shed as well......reminds me of my time working for a steelwork fabricator here in the UK many years ago :D
     
    31chevymike likes this.
  13. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
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    1. COE's (Cab Over Engine)

    C3E22F6A-1A0E-4075-9632-9A5F30A62E3D.jpeg Working on the lower windshield/dash brace. The one that tie the A-pillars together. Since my A-pillars lean 11 degrees back now, I needed to modify this brace. No one ever shows this on their chops.
    Here I marked the point where it needs a pitch change
     
  14. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
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    1. COE's (Cab Over Engine)

    694DBDF7-D813-4EBC-93B8-98CB2A58E138.jpeg Then cut so I can adjust it to fit the A-pillars.
     
    lucky ink, Fordors and 31chevymike like this.
  15. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
    ALLIANCE MEMBER
    1. COE's (Cab Over Engine)

    2B461549-4E0C-42EE-9BAB-21FC7F5CC90B.jpeg 394631D5-6794-4AEF-9112-8750F9EC656A.jpeg 47A39B83-AD9E-4C43-B3BD-4E9CB7F2B5FF.jpeg 2822E8E5-6055-4F62-8BFC-6F72B9752E7E.jpeg 461FDEA2-BC97-4757-A806-7024EA8F4A37.jpeg Then shape it to fit the A-pillar and weld in. This is an important step. It re enforces the cut where the pillars were laid back and supports the lower windshield. It also keep everything in align. I have 100% of the strength back
     
  16. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
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    1. COE's (Cab Over Engine)

    DBFD5F2B-69D4-45C2-89B5-8FDDAB272684.jpeg 4D190333-DEE7-4BC5-B756-9DC359C849F7.jpeg Next I test the upper header brace to see where it needs to be modified.
     
  17. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
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    1. COE's (Cab Over Engine)

    6A9D6229-DD43-408B-A93B-B92FD839C731.jpeg Here are the modifications made to the header structure. I had to change the pitch so it fits the laid back windshield.

    start by figuring out the new pitch.
     
  18. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
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    1. COE's (Cab Over Engine)

    Then mark where to cut and where to bend. Then reshape with hammer and dolly, weld back up. 9B63B752-07CA-473A-B098-0C7A6A75D9F5.jpeg AB0909DE-C776-479E-A2C3-D115767E8128.jpeg 990EDEAF-E6F7-423A-9C07-1A960B09FDD0.jpeg 09316B64-639F-48BE-9E1A-5002A979B30B.jpeg A32F46C9-9983-49D4-A348-69E0A66736E0.jpeg
     
  19. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
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    1. COE's (Cab Over Engine)

    F7B91EC0-F992-488E-8717-D5E91345F5C2.jpeg 3C13B41A-19B9-4672-B05A-7ED158D8C4C7.jpeg 4707D6DC-2CF3-47AD-B6BF-82F22E8109B8.jpeg Then install the header and weld it in. Something you can’t even do with a stock Brookville body.
    So is there any structural strength when the main header is barely welded to the skin of the windshield surround?
     
  20. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
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    1. COE's (Cab Over Engine)

    27EDB12A-C534-4451-959A-2040A122B8C1.jpeg 99747034-59BE-464C-AC94-4EE1DD9A2FEC.jpeg My only question is how did Ford screw or nail this part of the header to the wooden structure above the doors.
     
  21. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
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    1. COE's (Cab Over Engine)

    E66C8E09-9B9E-478E-800E-B45F6CA64EBE.jpeg I can’t even tell what Ford did there. I have two hole is the steel header where I can put small lag bolts in.
     
    lucky ink, Fordors and teach'm like this.
  22. After reading this I went back to the first page and read down a ways looking for information on who's Body you actually are working on. I didn't find a Brand Name. Is there a reason for that or did I just miss that information? Whoever makes it sure stepped up the quality of reproduction. I admire the fact you are doing a total reconstruction modification to the Top instead of just removing a section in order to achieve a lower profile and to hell with a quality job.
     
    31chevymike likes this.
  23. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
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    1. COE's (Cab Over Engine)

    I bought an unassembled Brookville body.
     
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  24. Happydaze
    Joined: Aug 21, 2009
    Posts: 2,262

    Happydaze
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    It's a Brookville that's been assembled from flat pack by 65standard. I think he's still in need of doors, but in the meantime is doing a superb job of it.

    Chris
     
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  25. Thank you both. Now the picture is a bit clearer. Quality work there Tony. Don't stop now.
     
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  26. Jacksmith
    Joined: Sep 24, 2009
    Posts: 1,817

    Jacksmith
    ALLIANCE MEMBER
    from Aridzona

    Man, that's a bunch of work for that subtle change on the windshield pitch... and it makes an incredible difference... well worth the effort. That's gonna look so cool!
     
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  27. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
    ALLIANCE MEMBER
    1. COE's (Cab Over Engine)

    B6543C6B-D67B-481B-80C4-83435F2C4101.jpeg 35D6755F-FDB6-41B4-8DE0-29AF80B98B42.jpeg Have the wood structure all in around the door and windshield. I secured the header to the wood with 1” lag bolts.
     
  28. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
    ALLIANCE MEMBER
    1. COE's (Cab Over Engine)

    F04BE28C-0624-4CC2-83D2-B8C6F817B8F4.jpeg After many test fits of the windshield surround, I was finally happy with it. Primered the back side and set it in for the final time.
     
  29. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
    ALLIANCE MEMBER
    1. COE's (Cab Over Engine)

    087AA612-CBA3-45E1-84A1-B9B4EBC021F5.jpeg C85F73F1-05B0-4556-81CD-B31EBFF4EC1F.jpeg 70ED878A-416F-40D6-8DBE-A258D93D9243.jpeg I scribed where to trim and started to tack it in.
     
  30. 65standard
    Joined: Jun 14, 2011
    Posts: 1,096

    65standard
    ALLIANCE MEMBER
    1. COE's (Cab Over Engine)

    20830698-4D0E-49D7-B8FB-CABACB550931.jpeg 07998392-79ED-4B02-B670-B878BBD7C3A0.jpeg A5DFF4C4-99A8-4A55-9078-D9566375FCBA.jpeg As you can see, there are no pie cuts to fill in.
     

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