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Everything posted by Ngoc Nguyen
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It is supposed to work though. The drive train from the sprockets to the engine looks like this. There are 3 16z gears to the left and 3 to the right. I think you might have missed one of the three to the right. Based on that assumption, for the upper two on the right side you can easily remove the rear battery box and insert them from behind. For the bottom one on the left side you can insert from beneath the model. If you miss a gear on the right then you need to remove the cabin module, and that should be enough. That battery box is held in place by these three axles, all of which can be pulled out from the outside. When you remove them all, the battery box will fall down. The cables for the Receivers on each side are supposed to pass through the gap in the 5x11 frames and under the tapered 5x11 panel. There's no need to change the doors.
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The other day I noticed that the model sags heavily in the middle and thus bends the four 5x7 LBG frames in the bottom down inside. It looks kinda like this. Since the model I have is the PF mod, I'm not sure if my mod causes extra weight or the stock model is already like that. Can anyone with the model take a look and confirm this?
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The first version that I published contains several problems: - The wheels of the first axle rub into the steering linkage. - The steering linkage is not strong enough to steer the first axle, so when the HOG steering knob is turned, the second axle will steer but the front one doesn't. - The bottom ends of the exhaust pipes actually collide with the bent 7-3 orange liftarms. I didn't discover this until I returned to this model and redesigned the steering. - The doors can't open fully because the connections for the mirrors get in the way. There are other parts that are not problems but can be improved: - The model can't be picked up easily because all of the upper modules (cabin, crane, bed) are not firmly attached to the body. - The building sequences of the cabin and crane aren't very clear. - The part of the chassis of the crane isn't adequately supported. - The rear outriggers aren't firmly connected. So I started working on this set again to fix all of the problems above and some other tidbits. The result is a much better version. - I added another layer of gear reduction and properly braced the rear outriggers. They work perfectly now. - I added the linkage on both sides of the front axles to prevent the lack of steering of the first axle. - I moved the linkages one stud upward as well as added limiters to prevent the front wheels from rubbing. - I added supports in the chassis part under the crane. - I turned the cabin and crane into separate and easily removable modules. - I added cabin locks behind the mudguard. The truck can be lifted by the cabin now. - I moved the connections for the mirrors one stud backwards. The doors can open more widely now. - I lifted the exhaust pipes one stud upward to prevent the collision with the orange 7-3 liftarms. I also made a proper render. If you have built the first version, I strongly suggest that you rebuild parts of the models according to the new version. You will have a much better model to play with!
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Generic Contest Discussion
Ngoc Nguyen replied to Jim's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Someone shrunk the 42128 already: https://rebrickable.com/mocs/MOC-91271/LegoGlen/half-scale-heavy-duty-tow-truck -
Control+ General Discussion
Ngoc Nguyen replied to Jim's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Reject C+, embrace PF