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Showing results for tags '9396'.
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[HELP] 9396 - Rotor Friction
JGW3000 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I have not been happy with the performance of my 9396 for a long time, so I am in the process of rebuilding it. The issue is that both the manual and motor-driven operation of the blades are sluggish and involves seemingly high torque, perhaps due to the large number of gears in the drive train, resulting in very slow turning blades. After completing about 82 steps in the rebuild, I got to a place in the build in which I can turn the blades with the hand knob, and again there seemed to be a lot of binding and "stiction" of the gears, which I traced to the gear directly driving the turntable being the primary trouble maker, highlighted as lime-colored in the LDD image. Loosening the build at this location, by forcing the two DSG11L beams slightly apart, resolves the issue, but is not a permanent solution as these will be tightly locked in place once the build is done. Does anyone else have similar issues, or suggestions to fix?- 7 replies
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- helicopter
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I had two weeks of holiday and took set 9396 with me to have some relaxing lego building. I wanted to build a C-model for 9396 and I think it worked out quite nice for the idea that I had. It features: - Cyclic control with one direction for each joystick and seat. These pilots need to cooperate! Frontseat controls forward/backward movement. Backseat controls left/right movement - Working landing gear, controlled by the black 20 tooth gear and one sLA. - Fuel probe in front for aerial refueling - One part that isn't actually from set 9396. I think it's a pitty this set doesn't come with one or two universal joints. Pictures: Building a C-model is interesting and difficult at the same time. As you can see I tried to use some parts in different ways than on the A and B models. The main rotor is quite a heavy part, and the control needed to be sturdy, so that it wouldn't fall over or something. For this I used as much blue friction pins, and an extra link as support. To stop it's movement and hitting the helicopter I used some towballs with pin. (see picture below) Attaching the front wheel was a puzzle as well, there wasnt much room with the link to the front joystick. With all the moving beams underneath it is quite packed, but movement is smooth. Thanks for reading, comments are welcome. All pictures on my brickshelf. (once moderated)
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- helicopter
- 9396
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