Ptchnk

Eurobricks Vassals
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About Ptchnk

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    Trains
  • Which LEGO set did you recently purchase or build?
    Fire truck

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    Male

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  • Country
    France
  1. Ptchnk

    6-wide Y-8000 series locotractors

    For powering the train, i implemented a simple mechanism in the front hood. Just by pressing the first 4x2 tile as picture inoragne below. For battery change, there not much to unbuilt on the front hood to remove the battery box. But i might also try to source a rechargeable PF battery. Regarding the 1x1 plate with a red side, it does exist only in white but i just wanted to see how it looked. Sticker or bit of paint would have done the job i guess. Also, i'm not quite happy yet with the look of the side windows, so i tried a different design for the upper part of the cab. Also gives me more lateral room to shift the driver a little bit.
  2. Ptchnk

    6-wide Y-8000 series locotractors

    I put all the last bits all together, here is the result with the "Infra" derived color scheme: I think i'm really close to what i was looking for Still have to test the other color scheme and upgrade the "no-motor" version with the last upgrades so that the model can be compatible with both versions. And of course, screen for possible built unstability.
  3. Ptchnk

    6-wide Y-8000 series locotractors

    I see your point now. As it is to use in our living room on limited sized tracks, lower the IR by one layer should be fine. Thus the inner cab will be fine with a proper floor and enough room to fit the minifig seated with a hat. I know going PU will clear room but it is no cheap for such a little loco and we already have a train with PF. You are right and that was of my initial thougt actually but kinda forgot about it in the rush of finding a solution for the motorization. Anyway, here is an update with the train motor. Just have to think about adding a hole in the base to accomodate the moto plug even if not functional.
  4. Ptchnk

    6-wide Y-8000 series locotractors

    Thanks for the feedback :) Could you linked me some example af gearbox you are thinking about. I'm a newbie and quit lost in all that is coming up when i google. I've made some quick test and the design works fine in the curves with a fixed front bogie. So i've been reworking a little bit the design of the underneath to try to fit the motor inside. Here is how it looks so far. Don't pay attention to the broken axles, i couldn't fit the 6L axle due to a tiny overlap due to the fixed angle of the arms used as "springs". IRL, their position will be adjust and the 6L axle will fit fine. and with a base plate on top of it
  5. Ptchnk

    6-wide Y-8000 series locotractors

    I'm sorry but I'm not sure to picture well what you're proposing. I've a question though. Does the dome of the IR receiver as to be totally out or could it be receded a little bit. that would allow me to keep the red strip going and gain one layer more in the cab to add a proper floor/seat for the minifig. One last question. i'm working on the motorized axle with a L-motor under the train. To have a good fit, i need the shift the motor shaft one layer up vs the wheel axle. Would it still be OK for the gears (both 12 teeth) to work properly? I need to get some technic parts to test it out for validation i guess.
  6. Ptchnk

    6-wide Y-8000 series locotractors

    Thanks for the feedback. Really appreciated as i'm new to that kind of build :) If possible, i'd like not to sacrifice to much the cockpit and keep some room for the minifigure as my son makes up elaborated stories with his vehicules and they have to have a driver. Here are some additionnal pictures of the "Motor" version with the previous design upgrades. Also managed to modify the cockpit so that the minifig will fit seated and with his hat. Here is a view of the inside of the cockpit to picture the room left for the wires. The minifig has a seat without bottom and will seat directly on the connector (if i go PF) and will be hold in place by the back and side of the "seat". If i can discard the rear mobile bogie and have it mount rigid to the chassis, i should be able to fit the M-motor in the thank assembly with sacrifing a bit of the appearance. This is just a very quick visual test to have and better idea of the size. Basically it would be an assembly including the motor and the rear axle.
  7. Ptchnk

    6-wide Y-8000 series locotractors

    You are both right. The actual design of the bogie is fine. I've built it IRL to check and it work fine with all flanges sitting on the tracks. And i think i will keep with the small axle behing the front wheel and in front of the rear ones as it is a simpler built. I will look at what can be improved on the overall look of the shunter to make it feel less bulky even if it's how it looks in real like. The idea it to keep the built not too complicated so that my 3-1/2 son is able to built it on his own. He already does the new big fire engine by himself following the instruction. So the idea will also to make an instruction booklet for the shunter as well as a box for it :) I will a try to rebuilt the main axle to fit better the real Y8000 and try to include the motorization. The circuit cubes is nice but i'd prefer to go with something compatible with Power Function (or Power Up) for compatibility with possible new additions to my son's set and the remote controls as it should quite fun for a shunter. If i go PF, as the battery and IR sensor take most of the room inside the main body, i'll have to fit a motor underneath by designing one. I could salvage a generic motor and fit it in a 3D printed case to built a stud compatible half motorized bogie. That should be fun :)
  8. Ptchnk

    6-wide Y-8000 series locotractors

    Thanks for the input. I thought about putting the small wheels in front of the axle as well but the width of the small axle, which is the same as the main one doesn't fit under the actual design. But instead of using wheels, I'm thinking using a bar guide which will seat behind the rails and prevent the bogie to desalign from the tracks. that should be easier to fit under the front of the current bogie. A problem i have with the current bogie design is that the small wheels are a tiny bit lower than the big one which will be an issue for motorization of the train (see picture underneath) Nice Y7100 :) . Your design help to modify the front of mine which i wasn't totally happy with as the front grid was going all the way to the edge. Also made some attempts to upgrade the lower part of the train.
  9. Ptchnk

    6-wide Y-8000 series locotractors

    Thanks for the suggestion. I was aiming at the same one but wasn't about the outcome. Nice to have some experienced feedback :) Big kuddos for the explicit pictures Here is the update design. I had to reduced the lenght of the underneath tanks to make some clearance for the "stability" axles. Also tried to add an extra layer of tiles on the tanks to see how it could cover the small wheels but the gain is limited. It would be difficult to hide them completely on a "6-wide" train anyway. Same thickness for the tanks as the initial design. Tanks are less long. With a extra layer to try to extend the tank Last picture is to illustrate the clearance between the underneath tanks the extra wheels with the two above options
  10. Ptchnk

    6-wide Y-8000 series locotractors

    Thanks. Done some more reading as i'm new to this and it appears that mobile 2-wheels bogies do not work great. The 16 stud gap between the axles make to it goes thru the turns but it's quite terrible to the hear and to the sight :). I'm trying to figure out a solution either by adding a small wheels 2nd axle that could be hidden by the underneath decoration or couple both bogies with a flexible stick as seems somewhere on the forum. Technically, the first option works well but still have to see how it looks on the train. Still have to test the second one.
  11. Ptchnk

    6-wide Y-8000 series locotractors

    My mistake. The plate base is 24-stud long. The axles are 16 stud apart only. Both bogies are mobile on the current version (using 2x2 turn plate)
  12. Ptchnk

    6-wide Y-8000 series locotractors

    That is actually the first design i did but i need to adust the color choice to fit bricks availability. For the motor, either I go with the current PF train motor and use only one axle and mount it rigid to the rear and keep only the front bogie mobile. The base is only 24-stud so it should be ok on the turns but I don't really know as I'm new to Lego trains. The construction i used should allow me to keep the current lower decoration as it looks. Or I go custom with a 3D printed brace for an electric motor and hold onto a Technic bricks chassis.
  13. Hi, I started my first MOC project to go along with my 3yo son's new interest for lego vehicule including trains. I foccused my attention on a common locotrator model i was use to spot in local french train stations: the Y-8000 serie. I chosed to keep it to the 6-widish range to fit a train he already has. Colors of the non-motorized version are based on existing models (Infra, Fret, ...). The color of the PF version are custom to fit the body color of the battery box and the IR sensor. "INFRA" color scheme "FRET" color scheme Power Function version (WIP): An air intake has been added on top of the engine for clearance for the PF wire. The motorized 2-wheels bogie still has to be design. Actual design only include PF battery box and IR sensor.