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How do I center a 2x2 plate on a 3x3 plate?
47 votes

For centring a minifigure on a 3×3 plate, I would do the following (though it’s not exactly what you asked for): Arrange 2×1 plates with centre studs as follows: Add 1×1 panels for optical harmony: ...

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Most inseparable combinations?
19 votes

My son did some extensive research on this subject, which yielded this beauty: That’s a light bulb cover stuck into a Duplo stud. While it may look harmless, I found it impossible to get sufficient ...

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How do I center a 2x2 plate on a 3x3 plate?
18 votes

If stability is not an issue, consider the following: Put a 4×4 dish on your 3×3 plate (yes, this fits): Put your 2×2 plate in the middle (in any orientation you like): If you want to centre your ...

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Help identifying unusual Technic part, long beam with 4 studs on end
9 votes

That’s a crane-arm centre. It’s usually used in non-Technic sets together with the crane-arm outside to obtain a telescopic arm, e.g., for cranes or firefighter ladder trucks. The slit at the end is ...

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How can I assemble 2 opposing gears so that the axle rotations are perfectly parallel?
7 votes

If you use a crown gear or bevel gear to connect your gears twice perpendicularly, they are exactly opposing each other, turn in opposite directions, and are parallel (if the respective axle is ...

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Separate LEGO Technic wheel from 3 pin hub
7 votes

The main trick is to simultaneously push all three pins of the hub: If you have another hub, and the wheel allows for this, take it and push carefully from the other side. If both hubs are half-way ...

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Chaining Connections
6 votes

This answer is based upon the wrong assumption that Technic chain links and conveyor-belt links (a.k.a. bulldozer chain links) connect to nothing except each other. As remarked by Ivan Sanchez, this ...

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Are there any wheels or rings that fit in pin clips?
Accepted answer
6 votes

The small Technic Steering Wheel and what I think is this rubber belt connect to clips:

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Which of these parts are LEGO elements?
Accepted answer
6 votes

The tools obviously have different handle widths. If they do not properly fit into a minifigure’s hand, they are almost certainly not Lego. If they do, they are compatible for most practical purposes, ...

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Utility pole and angles
Accepted answer
5 votes

The pole itself can be rotated on almost every level, so that’s nothing you need to worry about. Additionally, you may want your cables to be parallel. To achieve this, you need to increase the width ...

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How do I robustly tilt a strength-1 wall?
Accepted answer
5 votes

My best solution so far are minifigure legs (which are pretty robust on their own) combined with a clip tile to hold the wall in place:

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Does this 2x4 brick exist?
5 votes

Leggodt.nl lists such a brick as part of their collection and also has photos of them. Here is the entry, and on this site you can find a good picture showing the brick and the obscured Pat. pend.: (...

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How can I separate an 8H antenna from a modified 1×1 with ring?
4 votes

I fail to reproduce your problem. When I combine these parts, they are easily separable. Hence the following is an educated guess: Put the antenna on a big plate on a table (for stabilisation). Grab ...

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Is there any way to connect “sideways” to an axle?
4 votes

The minifigure spanner can be attached sideways to an axle (as well as a pin and stud): This doesn’t hold in all directions, however.

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How to build a car that stops at a certain distance?
2 votes

You might consider this cheating, but here we go: There exist Lego wind-up motors: With the number of turns of the key you should be able to control the distance rather precisely – unless the ...

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How to remove an unslotted length-2 technic axle from a one-way axle hole?
Accepted answer
2 votes

Take a thin technic beam or plate with an axle hole, preferably in the middle. I like the rotor 2 blade, which already has a firm grip on axles to begin with. Push it over the axle. Apply a slight ...

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