Arie

Eurobricks Vassals
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Posts posted by Arie

  3. Posted

    On 7/22/2023 at 9:53 AM, Jundis said:

    ... a

    s the new steering hub with the stronger CV-joint is coming in the 42162, has anybody already worked out a solution for a 11L wide steering and driving axle?

    Another option that I'm currently considering for this problem (4WD / 4 wheel steering tractor) is to keep the hubs at 13L but use the defender rims. That gets you to the same width, and allows for a better pivot point.  the black rim can be cleaned up by a disc or big sprocket representing wheel weights. Or you can mount duals ;)

  7. Posted · Edited by Arie

    Thank you this is very helpful! I won't promise yet to make updates to the instruction, but this helps me tremendously with the next MOC :)

    I don't know about the battery drain - I have normal single use batteries in the model (still the first set), and have been driving it for hours when my nephews are here :)

    And indeed the access to the batterybox access is problematic with the tipping bed (and the mirror is in the way) But like I said I haven't had to change batteries yet :wink:

    About the 4L axles - I went through all my stock of the the thin liftarms and 4L axles the find the ones that stay put :blush:

    And please share some photos!  Awesome, thanks for the pictures! Enjoy the model :)

  8. Posted

    22 minutes ago, MP LEGO Technic creations said:

    I've already made a perfectly-working one

    Wow, now I'm really curious! :excited: 

    Tried to build a quick mockup today and its definitely not working perfectly yet :sceptic:. The first version was an absolute mess, then I sped up the reel and slowed down the conveyer, that was already much better, then I changed the conveyor from only treads (bricks just rolled back down) to 1 link 1 tread (worked much better) to 2 links 1 tread (current situation). But this is nowhere near reliable enough, both in pickups (as you can see they shoot all over the place) and sometimes one brick gets stuck and rips the chain links...

    Next I will try 3 or 4 links 1 tread  but I don't have enough links so I ordered some, or maybe I will order some of these and try those: https://www.bricklink.com/v2/catalog/catalogitem.page?P=92713#T=C&C=11

     

  9. Posted

    On 11/10/2022 at 6:21 PM, MP LEGO Technic creations said:

    The plan was to make the machine actually pick up 1x1 round bricks as beets, which still is my priority.

    Really curious about the mechanism you will use to pick up the 1x1 round bricks, I've been pondering on how to build a functioning pickup header for a combine for some time, the only examples I could find were picking up paper or other lightweight / flexible things. I have some ideas but haven't started something yet...

    Awesome model so far, looking forward to the further progress, and also curious about the tractor and trailer!

  13. Posted

    10 hours ago, gyenesvi said:

    I like this a lot, it seems like a nice tight medium scale build! That drivetrain is super short, not sure anything shorter exists with all the joints and differentials properly included! I also like the steering linkage, I have been planning to try such a setup for a while. Does it have noticeable bump steer? Nice idea with the rubber band to route it to the steering wheel! On the rear, isn't the hub a bit heavy for those soft springs? It seems like it sits in a bit more in the back, although I guess the axle geometry is the same as the front.

    Thanks! It does have some bump steer, but mostly because the hubs are not stiff enough / play in the system. I think the rear suspension is fine but the front should be softer :) As in, I really like the suspension from the Defender set, where the model really sinks a bit into the suspension when you put it on the ground. It does that in the rear but not in the front.

    10 hours ago, Johnny1360 said:

    Great little set, well done, I do like the way you used the wires as part of the final model and love the belly shot. Probably the only thing I don't care for is all the holes in the body work at the back. Good job and thanks for showing it to us.

    Yes that is a really good point. Do you think it would be nicer with some tiles on the sides? (I dont have them currently in the right color to try it, or maybe I could take some from the Defender...)

     

     

  14. Posted

    1 hour ago, steph77 said:

    I'll need to buy some of the parts (buwizz) but i will build this marvelous model!

    GREAT job man!

    Thanks! I look forward to some pictures!

    54 minutes ago, 1gor said:

    After looking (and downloading instructions) u can only repeat myself - beautiful :wub:

    In the meantime I got one idea, but I don't know if it is ok with you, for white rims on NH Tractor; front could be from 42124 buggy, but perhaps those with white 6 x 6 dish inverted could be useful?

    https://www.bricklink.com/v2/catalog/catalogitem.page?P=15038pb01&idColor=11#T=S&C=11&O={"color":11,"iconly":0}

    ...but when I see the price I almost got heartache...

    Pffff... nice idea but that price... Maybe I could work out how to somehow attach these:

    https://www.bricklink.com/v2/catalog/catalogitem.page?P=2998#T=S&O={"iconly":0}

    2 minutes ago, 1gor said:

    Now I see why you could not remain proper width; there are 3 PF motors (giving 9 studs overall width) in the way if you don't want rubbing rear tires to m-motors...that us why I switched to XL motors - they are shorter...

    Mwah, that was mainly my inexperience and not using a proper blueprint (only pictures). There is still at least half a stud on each side of clearance between the motors and the wheels, even if you take the 'bending' of the wheels into account

  16. Posted

    Hi Everyone,

    I would like to share my attempt at building a small, functional Willys Jeep. 

    800x600.jpg

    It is RC controlled using a Control plus Hub, and two Control plus L motors, one for drive and one for steering. I tried to "hide"the hub in the back by camouflaging it as cargo that is strapped down using the motor wires :) 

    The Jeep has full suspension front and rear using live axles. It is four wheel drive, with differentials. 

     

    640x853.jpg

    The biggest challenges where the axles, especially the front one. I wanted the pivot point to be as close to the wheel center as possible to be able to keep the body tight around the wheels, and a decent steering angle. That combined with the four wheel drive, and the width of a differential plus CV joints was limiting the options quite a bit. I ended up building hubs that fit inside the wheels:

    640x480.jpg

    The next challenge was to get both the drivetrain and steering to the axle. First I mounted the steering motor the other way around compared to the picture above and used U joints to the front axle, but there was way too much play in that solution. In the end I changed things and build the linkage as you can see in the picture, which works much better. The steering wheel also rotates while steering, but it uses a rubber band because there was no place for gears anymore :)

    The rear axle was also a bit of a challenge because the differential had to fit below the hub, and I didn't want to move it even higher than it already is. In the end I just put the differential one stud lower than the wheels and used a pair of 8 tooth gears.

    The model is a lot of fun to drive, it goes quite fast with the L motor and relatively low weight :)

    800x600.jpg

    I'm curious to hear what you think of it!

  18. Posted · Edited by Arie
    typo

    1 hour ago, Jundis said:

    One thing: The movement of the bucket is very limited. Did you try to achieve a bigger angle?

    The dumping angle is indeed limited - spent many evenings trying to find a mechanism that was compact, had good range of movement and that would stay mostly horizontal during lifting (to also be able to attached a palletfork). In the end it was a tradeoff between dropping the parallel linkage and the range of movement and I settled on this :)

    13 minutes ago, 1gor said:

    Of course it looks better with Zetros tires, but one question arises to me (since I'm lazy to read first post): you implemented just rear wheel drive or 4wd? :wink:

    No four wheel drive unfortunately - Would have no idea how to fit that in! (the motors for the loader take up most space under the hood, and right below is the servomotor for steering) 

  24. Posted · Edited by Arie
    added video

    I have finally found the time to finish this MOC of a Morooka tracked dumper.

    800x600.jpg

    It is loosely based on the Morooka MST 2200VD. 

    640x673.jpg

    The model is controlled using an S-brick and powered by the regular lego technic power functions battery box. 

    Each track is driven by an PF L motor with a 1:1 ratio, giving the model plenty of speed and enough torque to drive over obstacles etc. 

    Dumping is also motorized using a PF L motor driving a linear actuator.

    800x600.jpg

     

    The battery box is hidden under the openable hood, and can be easily accessed and removed (although a lot easier if the dumpbed is up :))

    Other functions include an openable door and a lock for the gate on the dumpbed, that opens if you dump.

    I tried to make a video but you guys will have to wait a bit longer because my baby is making a lot of noise in the background so I have to make a new one sometime when he is asleep :)

    Edit: made a new video - the period in the beginning when nothing happens is when the buwizz in the tractor fails to connect

    Some more pictures: https://bricksafe.com/pages/Arie/tracked-dumper

    Let me know what you think!