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  • #107297
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    AvatarScaleAddict
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    • Scale Off Road Pro
    • ★★★★★★

    After more than a year without trails,finally did it!!

    Took the JK, the M548 and the ‘mog to drive a little. Ended driving the Unimog a lot more than the others

    Tried an easy line with sucess and was doing slightly harder lines and the truck was doing great…ended in one that I was positive that will fail…but the truck managed to climb. In 1st gear of course

    https://youtu.be/blXv3BgJIaY

    #107304
    Member
    markmark
    • Topics 45
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    • Scale Off Road Pro
    • ★★★★★★

    Those axles are seriously amazing.
    That 1st pic outside, wow.

    #107312
    Sysop
    AvatarRetrocosm
    • Topics 120
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    That looks so good, great pictures!

    Retrocosm On YouTube   Instagram   Website   Twitter   Facebook JSScale Team Driver

    #107588
    Member
    AvatarScaleAddict
    • Topics 5
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    • Scale Off Road Pro
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    Thanks guys!

    well, to the news:

    that previous axle sparked an old idea of making 100% printed axles. About 4 years ago I worked on that, having housings printed but the big scx10 internals didn’t allowed to do them small and nice. Fast forward to the present and adding to my improved 3d skills,we have more choice

    Someone suggested TRX4 diff gears and using lockable diff. Was a great idea but the parts are too expensive.Remember that I need 4 sets to make 3 axles. Went to scx10.2 gears from Ebay and they seem good, nice machining and finish

    The issue was doing the gear mesh because of the “high pinion” feature but after a few tries, is done

    Doesn’t seems but it works:

    I’m aiming for this,2 halves:

    The angle on the pinions is because torque tubes are a possibility. I’m just waiting for parts to arrive to confirm if it’s possible

    #107608
    Sysop
    AvatarRetrocosm
    • Topics 120
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    • Scale Off Road Pro
    • ★★★★★★

    That’s excellent work, very impressive.

    Retrocosm On YouTube   Instagram   Website   Twitter   Facebook JSScale Team Driver

    #107625
    Member
    AvatarScaleAddict
    • Topics 5
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    • Scale Off Road Pro
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    Thanks! i try my best

    I wanted to do a smaller pumpkin because it just looks better. There’s quite a difference between scx10 and scx10.2 gears:

     

    Is 11mm actually because because of the design I’m trying to replicate, mine wouldn’t be 11mm smaller…

    #107703
    Member
    AvatarScaleAddict
    • Topics 5
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    • Scale Off Road Pro
    • ★★★★★★

    Hi,

    This is taking more time and thought that I’ve expected. Torquetubes are cool but now I’m seeing why I only saw one project with them. There’s a couple of things to consider. Anyway, managed to print the prototype for the front axle. I’m still waiting for the other diff gears and bearings to arrive

    There’s the torquetube and the next thing to do is the spherical chassis mount…but need to center the transfer case outputs first. It’s not a problem with normal driveshafts but if the axle diff is centered,so must be the transfer case

    #107764
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    AvatarScaleAddict
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    • Scale Off Road Pro
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    Did the skidplate and mount the transfer box as centered as I could. The torquetubes require that. The skidplate sits lower than the older one but I think that wouldn’t be a problem, this is a scale truck afterall

    Quick mockup:

    Missed the torquetube length by a couple of milimeters but the real ones will be machined from aluminium so it’s fine

    The rear trackbar mounts are in place. Need to redo the motor mount and wait for the diff bearings to arrive. My plane is to complete and mount an axle before moving to the next one

    #107808
    Member
    AvatarScaleAddict
    • Topics 5
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    • Scale Off Road Pro
    • ★★★★★★

    Hi!

    Quite slow but I don’t gave up on this. Even if it’s harder than I thought….(so that’s why few people try to do this…hmmmmm)

    Still waiting for bearings and better filament to print the axles but in the meanwhile, did a new motor mount because the old one will interfere with the front torquetube. Speaking of torquetubes, started on the definitive ones, printed one at first to confirm the length and if everything worked.

    So, now in aluminium:

    https://youtu.be/DaOzSNvTKcY%5B/

    #107843
    Member
    AvatarScaleAddict
    • Topics 5
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    • Scale Off Road Pro
    • ★★★★★★

    Hi,

    Slow progress…still waiting for parts. In the meanwhile, tried to improve the front axle. It had regular shock/link mounts but I would need space for the shocks. Besides, these type of mounts are sensible to print orientation, making the rest of the axle stronger, leaves these weak

    Up is new, down is old. The mount is now a single hole where the shock eyelet bolts directly. This and every threaded hole will take m3 helicoils

    #107860
    Member
    AvatarScaleAddict
    • Topics 5
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    • Scale Off Road Pro
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    Yesterday did one that was on my head for a while: How to extend the diff pinion shaft.

    On SCX10 gears, this would be easier: a longer shaft where the pinion fit…the pinion on scx10.2 has the shaft incorporated. So, I had the option of welding a shaft but would have to repeat that if I wanted to change the pinion. There was not space inside the torquetube to do something with a grub screw holding the 2 parts

    So, the idea replaces the grub screw with a 2.5mm metal rod,hammered in the ends, like a rivet. This way, I can replace the pinion shaft and bearings

    #107886
    Sysop
    AvatarRetrocosm
    • Topics 120
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    • Scale Off Road Pro
    • ★★★★★★

    Wow, some really impressive work going on here, keep at it it’s fascinating to see these custom made parts.

    Retrocosm On YouTube   Instagram   Website   Twitter   Facebook JSScale Team Driver

    1 user thanked author for this post.
    #107931
    Member
    AvatarScaleAddict
    • Topics 5
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    • Scale Off Road Pro
    • ★★★★★★

    Wow, some really impressive work going on here, keep at it it’s fascinating to see these custom made parts.

    Thank you! I’m trying my best .

    Well. The bearings finally came ! just ordered them in the 1st of May, no big deal 🙂

    With those, I could fit the gears properly,see where they are rubbing and also fitted the driveshafts

    Also, did these reinforcement rods, like the real one has

    #107954
    Member
    AvatarScaleAddict
    • Topics 5
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    • Scale Off Road Pro
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    I think it could be called a milestone:

    https://youtu.be/Y5J4jT6oPAs

    #107958
    Member
    AvatarScaleAddict
    • Topics 5
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    • Scale Off Road Pro
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    Close-up of the housing

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