Scale RC Forum Forum Members’ Builds Off-Road builds ravens s.o.f.t. – a brief summary

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  • #108378
    Member
    raven62raven62
    • Topics 12
    • Replies 259
    • Scaling Like A Pro
    • ★★★★★

    After a floatingcrane and a floatingcrane-pusher (or ahts ) I’ve started in september 2020 the build of a new offroad vehicle.

    Based on a traxxas trx6 it should be a full functional firefighter truck. At this time, I didn’t know if it will run or a big fail. Due to some other reasons, I’ve forgotten this little beautiful forum.

    My next project will start soon, and the s.o.f.t. is, in it’s technical point of view, a straigth predecessor of the upcoming project.

    Thereby now a briefly summary of the last five Months:

    All starts with a trx6 chassis
    IMG_1418

    A firetruck needs a water tank.
    IMG_1518

    The Hull should be completely from metal. At the articulated trial car I’ve used aluminium sheets. But I’m not really happy with this material. Meanwhile I’ve found a shop which sells 0.1mm steel body panels. Steel is very well weldable. But so thin sheets and a big weld-machine? After some research I’ve bought a Micro Welder from Lampert. A win – win for me and my wife, because my other hobby is making jewellery. The microwelder raises the possibilities enormous.

     

     

    IMG_1674

     

    First bigger parts to weld was the cabin-frame. Not good, not bad. Much to learn and much to practice.

    IMG_1771

    Regards

    Ralf

    #108379
    Member
    raven62raven62
    • Topics 12
    • Replies 259
    • Scaling Like A Pro
    • ★★★★★

    Looks quite good, but just the sheetmetal is too weak and I’ve decided to add a steel tube frame.

    IMG_1849

    IMG_1779

    to avoid collisions from the fragile monitor with trees it will be retractable

    IMG_1809

    IMG_1833

    Above the tank, the complete mess of pumps, electronics and the remote controlled filler nozzle take his place.

    On this pic it looks very accurate, but this will change later 🙂

     

    Pumps are: Monitor, Filler and Tire watering

    IMG_1934

     

    The truck is a prototyp, so the cockpit interior wil by hypermodern with tft-screens and touch panels. Only the steering wheel is old school.

    IMG_2119

    Regards

    Ralf

    #108381
    Member
    AvatarScaleAddict
    • Topics 6
    • Replies 361
    • Scale Off Road Pro
    • ★★★★★★

    you really like challenges. There’s no margin of error with 0.1 metal…

    #108387
    Member
    GrasshopperGrasshopper
    • Topics 31
    • Replies 646
    • Scale Off Road Pro
    • ★★★★★★

    Beautiful work Ralf, glad you’ve found us again. There is a tonne of mechanics and electronics in those pics you’ve barely touched upon.. I’m fascinated already

    Axial SCX10 Dingo D90    RC4WD TF2 Hilux     RC4WD G2 D90

    #108389
    Member
    raven62raven62
    • Topics 12
    • Replies 259
    • Scaling Like A Pro
    • ★★★★★

    Hi,

    the electronics are a great mess for just a short list of features:

    retractable and turnable monitor

    track and tire watering

    automatic tank re filling

    standards form the trx6 are the two gears and the lockable differantials

    learning points for me during this project were welding and handling fine sheet metal , soldering smd-leds and programming an arduino to manage three little tft-screens.

     

    .1 mm metal is really thin but meanwhile i love it. it s a specific alloy for chassis works i.e. pressing and deep drawing.

    it comes as a coil and can cut with a sharp scissor. lexan sciccors are great for small curves etc.

    IMG_1679

     

    If parts need a bit more stiffness like the bumpers, i’ve used the monstreous 😀 .2 mm sheets.

    IMG_1761

     

    First big learning was, that welding steel-tubes is easy, but welding waterproof steel tubes is really tricky

    IMG_1619

    I’ve invest several hours and tube-meters of testing ans learning.

    But at the end, the tubes to the monitor are ready and the monitor gets his final form.IMG_1881

     

    Some endpoint switches are added to prevent collisions

    IMG_1832

    After a bit color the cabin began to look like a cabin.

    IMG_2181

     

    Next step was the build of the rear hull…..

    Regards

    Ralf

    #108418
    Member
    raven62raven62
    • Topics 12
    • Replies 259
    • Scaling Like A Pro
    • ★★★★★

    Building the rear hull. (Front part. My oven is to small for the whole hull)

     

    a sheet of 0.1mm metal

    IMG_2206

     

    IMG_2207

     

    lines

    IMG_2211

    more lines

    IMG_2212

    lines for some beads

    IMG_2213

    beads

    IMG_2214

    cut out

    IMG_2215

    window to reach the main switch

    IMG_2216

    IMG_2222

    completely folded

    IMG_2228

    very wobbly and will get a inner reinforcement

    Regards

    Ralf

    #108421
    Member
    markmark
    • Topics 47
    • Replies 1565
    • Scale Off Road Pro
    • ★★★★★★

    So much talent and so much bonkers in one go.

    #108424
    Member
    raven62raven62
    • Topics 12
    • Replies 259
    • Scaling Like A Pro
    • ★★★★★

    So much talent and so much bonkers in one go.

    😀

    I love this way of live. My Job is serious enough.

    —————

    Building the rear hull is done and a great orgy of soldering smd-leds and fitting all the little things together was following. Actually it waits for material of the track & tire watering. This will be the last work before a great testrun.

    Some Instagram Links for actual Clips:

    Showing all the lights:  https://www.instagram.com/p/CKPUn3ZKq8X/?utm_source=ig_web_copy_link

    Little lestdrive in my garden during rearranging a pond.  It’s not a slomo. The hobbywing fusion 1800kv is a lovely engine to drive extremly soft and sensible!

    https://www.instagram.com/p/CKPUn3ZKq8X/?utm_source=ig_web_copy_link

    At least a Still from the testdrive

    IMG_2409

    Width: 24cm

    Length: 70cm

    Height: 32cm

    Weight without water:  8,8 kg. (Very light for a car with a full metal hull, i think)

     

    So, this Project is almost finished. Next will start in a Moment 🙂

    Regards

    Ralf

    #108438
    Member
    raven62raven62
    • Topics 12
    • Replies 259
    • Scaling Like A Pro
    • ★★★★★

    Last feature is online. Track and Tire Watering to prevent melted tires.

    A short clip:  https://www.instagram.com/p/CKwTSCSq4Xa/?utm_source=ig_web_copy_link

     

    For my next project I’ve needed the ability to bend tubes exact and reproducible in various diameters. (many people can this with their sense of proprotion, i need hardware )

    IMG_2575IMG_2577IMG_2569

    The winding tube under the cabin for the track watering was the first complex bending-test. Not perfect, but works.

    IMG_2578

    Regards

    Ralf

    #108470
    Member
    AvatarScaleAddict
    • Topics 6
    • Replies 361
    • Scale Off Road Pro
    • ★★★★★★

    Following this on IG…impressive amount of work…you really like to learn new skills

    #108478
    Member
    AvatarPaulnb57
    • Topics 2
    • Replies 27
    • Ready To Trail
    • ★★

    Enviable skills! Great build

    #108526
    Moderator
    damohickdamohick
    • Topics 12
    • Replies 645
    • Scale Off Road Pro
    • ★★★★★★

    Wow … What an engineering project! that micro welder looks like an awesome toy on it’s own … very mipressed.

    #108591
    Member
    raven62raven62
    • Topics 12
    • Replies 259
    • Scaling Like A Pro
    • ★★★★★

    Hi,

     

    a short teaser from yesterdays successful maiden run

    https://www.instagram.com/p/CLsMDWvKDIb/?igshid=163ke1kvbipib

    Regards

    Ralf

    #108592
    Member
    AvatarPaulnb57
    • Topics 2
    • Replies 27
    • Ready To Trail
    • ★★

    Fabulous!

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