This topic contains 112 replies, has 18 voices, and was last updated by Tim_ 2 years, 4 months ago.

Viewing 15 posts - 91 through 105 (of 113 total)
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  • #63742
    Moderator

    Tim_
    • Scale Off Road Pro
    • ★★★★★★

    Bit more of a substantial update this time.

    The Unimog is ready to be photographed and taken apart for finishing and painting which will also involve a ton of lock tight to keep everything in place, I’ve already lost a wheel nut.

    Before doing that I wanted to check the geometry and weight of the Unimog so I broke out the ruler and scales. I found the following:

    Wheelbase: 300mm
    Mass total: 4227g (4.2kg)

    Corners
    Front left: 1040g
    Front right: 1050g
    Rear left: 1077g
    Rear right: 1060g

    Front axle: 2090g
    Rear axle: 2137g
    Bias: 49% front 51% rear

    Ride heights
    Front left: 139mm
    Front right: 138mm
    Rear left: 133mm
    Rear right: 132mm

    I know the Unimog needs stiffer rear springs so that’ll pull the ride height back. Also there was no front light set, I weighed that separately and it’ll comfortably pull the Unimog back to a good 50:50 balance. Those are good figures though and I’m pleased with them, the geometry of each axle will be checked anyway when they’re re-built so everything will be spot on.

    So that was the last time the Unimog looked like this…

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    I always had it planned that I would strip it all down so I could paint it and build it up properly. A few parts had deliberately been missed off as it seemed pointless to spend lots of time fitting them only to be going back in there anyway. I decided to split the Unimog into several sub sections comprising of the body, front axle, rear axle, wheels, front bumper, main chassis and electrics.

    I started with the front axle. I painted all the metal parts apart from the suspension mount points as I like them silver. I also fitted the new differential, new sealed bearings, lock tighted all the appropriate areas, greased and checked the shims in the portals and re-assembled as a complete sub assembly. It’s worth noting the front axles have beef tubes which all the metal work mounts into and taking the stress.

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    Next to complete was the rear axle which I stripped off. The front I put safely to one side as its now complete.

    5DA9D30F-1D2D-4C75-91FF-6C2B3174A2FF_zpscparhv95.jpg

    The rear axle has had the same treatment as the front with a new differential, new sealed bearings and a clean and rebuild with painted parts. The only thing I’ve not done is put a set of beef tubes in because the metal mount parts are designed differently and take the forces anyway. I also didn’t want to add the mass into the axle as there was nothing to suggest a beef tube was needed in the early runs.

    Again, all new grease, shims checked in the portals and lock tight where needed. I also adjusted the toe links so the wheels point forwards, the rear left was wonky before and put a slight error into the steering.

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    I also shaved off the servo mount posts for a cleaner look to the axle.

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    With that complete I moved on to the front bumper. I took all the bits off and rubbed it back with wet and dry. I built up a few layers of paint then keyed the surface again before applying the final few layers. As well as having lots of thick coats I wanted to try make sure the paint doesn’t chip off if it’s damaged.

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    I re-spooled the winch and re-built the bumper with all the bits it needs. I would show you all a finished picture but that would be telling the colour of the body…

    I also stripped back each wheel (have you seen how many nuts and bolts there are?!) fitted crawler innovations closed cell foams and rebuilt them with lock tight. It takes about an hour to build up a wheel but using an electric screw driver with a torque setting I did all four in less than hour. Pretty boring though so no piccies.

    I’ve also been painting the Cab, interior, rear bed and associated parts. The weather has been off and on so I’m on my fifth week of painting now – I was hoping to have it all primed and painted in a fortnight at this time of the year.

    A virtual pint (and some piccies) to anyone who can guess the colour, there are clues in the thread…

    #63773
    Moderator

    Tim_
    • Scale Off Road Pro
    • ★★★★★★

    More!

    I’ve been doing some painting over the past 7 weeks. I’ll let the pictures do the talking.

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    Thanks for looking!

    #60451
    Member
    grubbybuz
    grubbybuz
    • Scale Off Road Pro
    • ★★★★★★

    :jawdrop: oh yeah Nice work! Looks good in the blue ::cool

    #60452
    Member
    mark
    mark
    • Scale Off Road Pro
    • ★★★★★★

    I second that, great choice on the blue ::thumb::

    #60453
    Member
    Fourth Protocol
    Fourth Protocol
    • Scale Off Road Pro
    • ★★★★★★

    Colour changes everything. Was already ace but this really brings it to life ::thumb::

    #60454
    Member
    Jamie tee
    Jamie tee
    • Scale Off Road Pro
    • ★★★★★★

    ::wow that is fantastic Tim_ ::drool very jealous :worthy:

    #63778
    Moderator

    Tim_
    • Scale Off Road Pro
    • ★★★★★★

    Thanks guys.

    More pictures, these are of me assembling the chassis. More to come after this lot.

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    #63818
    Moderator

    Tim_
    • Scale Off Road Pro
    • ★★★★★★

    More pictures. This time with the body and chassis finally together.

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    It stays perfectly level with the body mounting on three points. I even opened the rear bed to test and it was just fine!

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    Underside shot.

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    Ground clearance at the centre. That’s an RC4WD 6 tonne axle stand under the skid. I can raise the Unimog up with the adjustment on the suspension but as I’ve also got portals I really don’t think I’ll need it!

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    Apologies for the reflections, better ones to come.

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    The holes in the bed are where the suspension towers are, this allows me to have a secure mounting point from the bed to the chassis if I ever need to strap something in there.

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    As promised slightly better

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    Access to the electrics

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    Low lying electrics help to keep the CoG low in the chassis and they’re quite well protected from the elements.

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    Winches. There’s about 8.5 foot of line between the two.

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    You can see the shackles marking the end of the lines

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    Thanks for looking.

    #60455
    Member
    mark
    mark
    • Scale Off Road Pro
    • ★★★★★★

    You’ve done an amazing job on this, all the wires :holdinitin:

    #60456
    Member
    Dam
    Dam
    • Scale Off Road Pro
    • ★★★★★★

    Looks brilliant Tim ::thumb:: Well worth the wait ;-)

    #63822
    Moderator
    Pete Attryde
    Pete Attryde
    • Scale Off Road Pro
    • ★★★★★★

    That looks absolutely cracking Tim. top work ::thumb::

    I shall now move this thread to a new home ;-)

    Pete's Scale Fab Shop - Facebook  Instagram

    #63823
    Member

    Thrip01
    • Scaling Like A Pro
    • ★★★★★
    Pete Attryde wrote:
    That looks absolutely cracking Tim. top work ::thumb::

    I shall now move this thread to a new home ;-)

    Yep, I second that move! ::thumb::

    #63825
    Member

    M and M
    • Trailing And Scaling
    • ★★★★

    and I do, work of art.

    #63824
    Member
    Fourth Protocol
    Fourth Protocol
    • Scale Off Road Pro
    • ★★★★★★
    Pete Attryde wrote:
    That looks absolutely cracking Tim. top work ::thumb::

    I shall now move this thread to a new home ;-)

    YEAH ::thumb::

    #60457
    Member
    Al murray
    Al murray
    • Scale Off Road Pro
    • ★★★★★★

    stunning piece of work that, so much detail..

    Al..

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