Questions tagged [technic]

A more advanced form of LEGO®, allowing for the creation of more realistic working parts.

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3
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1answer
45 views

Is There A Way To Convert .ev3 Files To .uf2 Files?

I am using Lego Mindstorms EV3 Education Edition and I am wondering if there is a way to convert the default .ev3 files to .uf2 files
4
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1answer
115 views

Double linear actuator boom movement

The following Technic sets 8043 (Motorized excavator) 42009 (Mobile crane) 42082 (Rough terrain crane) 42110 (Liebherr) and likely a couple of more have a double set of linear actuators to move ...
7
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1answer
97 views

Why do Technic beams have an odd number of holes?

Why do LEGO Technic beams tend to have an odd numbers of holes? Is it for making it suitable for designing models? Or does the owner of The LEGO Group love either odd or even numbers?
5
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2answers
109 views

Compatibility between vintage (80s/90s) Technic and current parts (motors etc)

I've recently got my old Technic out for my daughter (who's a little young for her own, but her Friends now drive around in a tank). If I start to acquire more, and more sophisticated, motors and ...
4
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2answers
1k views

Electric motors - what for beginning?

I just got my first technic joblot and now I am thinking about adding motors. I already have some - cheap ones from amazon. I attached 1 axle pin to such motor with glue gun, works well except one ...
1
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1answer
156 views

Are these LEGO pieces original? How can I be sure?

When I enter in the code on the BrickLink site the codes come up, but there are no markings on the tires suggesting the name of the company or any code. Could it still be an original piece if this is ...
5
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1answer
201 views

Trouble with 42110 transmission

I just got the 42110 and assembled bags 1 and 2. I tested everything before joining the front axle and rear axle, and the friction was quite low, not nearly high enough to get gears to skip or ...
2
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0answers
88 views

Gonk droid spinning saw blade

This is the Gonk Droid from set 75253 Boost Droid Commander: The accessories for the third mission "defending the Falcon" have been added. The right arm can punch and shoot a "laser beam". However ...
5
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2answers
137 views

Why do technic bushings have a flat side and a wavy side?

Exhibit A 3713: The near side is smooth on the circumference, but the far side has a wavy pattern. In Lego directions, the photos usually show the "orientation" of the bushing, but if I put it on the ...
3
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1answer
136 views

What does the +/- dial in the Lego Defender model do?

Lego today released a video showcasing the new 42110 Land Rover Defender model. The video captions mention that it has “Lego Technic’s most sophisticated gearbox to date”, and we see 3 seemingly ...
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2answers
35 views

Fixing a not working PF L motor

Four of my PF L motors don't work. How could I make them work again? I didn't find any information about L motors, only M and XL.
6
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3answers
616 views

2:1 gear ratio in stud-less Lego Technic

Is there a recognised technique to create a 2:1 gear ratio in stud-less Lego Technic? Neither of the two methods suggested here (studded though) work. 24T/12T with a 2L x 1L axle offset does rotate, ...
2
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1answer
47 views

How to prevent PF M-motor from springing back

I'm currently building a car with a simple 2-speed remote controlled sychronized transmission, shifted by a PF M-motor. Everything is fine except for one thing, the transmission driving ring is ...
-1
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1answer
89 views

Ideas to help develop a child's engineering skills?

My son is 7 yrs. old and has really creative ideas with his bricks. I see it challenging him and wonder, "How can I help develop his product engineering/design skills?" What kind of tasks can I give ...
15
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1answer
2k views

Which old Technic set included large yellow motor?

I am trying to find the number or some other identity of a Technic set I remember owning as a child (so it was probably bought in the 1985-1995 year range, more likely in the 80's half of it). Among ...
3
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2answers
165 views

Technic Piece needs identifying

I need some of this part but I’m struggling to find any sets they came in:
3
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3answers
1k views

Why isn't the new LEGO CV joint available on Bricklink or Brickowl?

In the new 4x4 X-treme Off-Roader set 42099 there are 2 new, sturdier CV joint pieces that I would like to have. If I search for 42099 on Bricklink I don't see a list of pieces included in the set. I ...
2
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2answers
176 views

Technic beam centering for beam with even length

I design stereo camera housing for robotics (3d printing). I want the housing to be able to connect to both LEGO Classic and LEGO Technic blocks. I designed 2 groups of 4x4 holes/pins on the bottom/...
3
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1answer
208 views

Problem-shooting on 8070 “Super Car” with Power Functions

I have recently bought a used Lego Technic car (8070 Supercar). It was not fully built, and from the instructions I learned that it was fully built except for approximately the last 10 steps. I ...
-1
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1answer
167 views

Arduino-izing LEGO Technic - and now I need some ideas for the Lego Service Truck 8071

I am starting a project - Arduino-izing LEGO Technic - and now I need some ideas for a car / vehicle to choose. This project starts out as a quest to find a way to combine the ease of LEGO Technic ...
2
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2answers
204 views

Lego Technic 60C01 Bore size

I was wondering what the bore size is off the 60C01 clutch gear as I was unable to find it anywhere. Also, what is the pitch of such gear?
5
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1answer
159 views

Pin Connector 62462 vs 75535

I wonder what is the purpose of the slot in the 62462 pin connector? What can it be used for, beside from help with part separation? Part 62462 (2005-present) is newer than 75535 (1995-2008), but the ...
4
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0answers
163 views

How to build an arch that is angled out of Lego?

I am currently working on a MOC for the USS Orville and I am trying to figure out the engines. I have gone through a couple of iterations on my current version, but it always buckles under its own ...
4
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1answer
206 views

LEGO 42095 wheels going opposite directions

My son just finished the 42095 Remote-Controlled Stunt Racer and the two wheels go in opposite directions. Have checked and rebuilt and still can’t get it running in the same direction. Can anyone ...
3
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1answer
104 views

How to debug gears in the Bucket Wheel Excavator?

My 8 year old is just finishing the Bucket Wheel Excavator. He turned the motor on and there is a significant clicking noise. It looks as though the top gear noted in the picture gets stuck. Not sure ...
3
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2answers
126 views

Has LEGO ever been used in an assembly line or a manufacturing process?

With LEGO Technic and LEGO Mindstorms becoming ever more sophisticated, I wonder if it has ever been used in a real commercial setting to automate parts of an assembly line or manufacturing / research ...
1
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1answer
118 views

What is this piece? 2 axle and 1 pin?

I've been looking around for this piece, google images etc, cannot find it. Any ideas on a part number?
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2answers
133 views

Any (small) Lego Technic parts not in whole units?

This is aimed at building a GBC module, not to reproduce an actual engine. I need a piston type construction with stroke length of 3 units, which means a crankshaft radius of 1 1/2 units. Are there ...
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0answers
61 views

Is there any software except SR 3D Builder with the ability to simulate the interaction of gears that doesn't require scripting?

I'm aware that one can do that in LDCad but with scripting. Should I invest my time in learning SR 3D Builder or is there any other option? It's just not a very intuitive software for me but I might ...
8
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2answers
330 views

Has this building technique been used in an official set?

One of my favorite building techniques is to place a Technic pin into the anti-studs of a brick. This allows two bricks to attach bottom-to-bottom. It's a pretty secure connection, but I'm not sure ...
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2answers
86 views

Is there any easy, documented or official way to replace pullback mechanism with Motor Set 8293

There are many Technic cars with a pullback mechanism, like 42059, 42073 or 42072. Is there any systematic, easy, documented or official way to replace the pullback mechanism with the LEGO Technic ...
5
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2answers
370 views

What is a good third party battery box and receiver?

I got the LEGO 4x4 crawler for my birthday and I love it. But there is one slight thing which I hate: it has terrible range when using it outside. I know there is BuWizz which is a third party ...
2
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1answer
135 views

Where to buy rare old sets?

Does anybody know a good place to buy rare old LEGO sets? I'm looking specifically for old "pneumatic" featured LEGO Technic sets.
2
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3answers
251 views

Parts for “Simple Machine” book by Isogawa-san?

I would like to make some models from The LEGO Technic Idea Book: Simple Machine by Yoshihito Isogawa. It seems the author is using parts of different "Technic" sets. Could you advise where can I ...
5
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3answers
167 views

42043 Mercedes Arocs Truck Crane Turntable Sticking

I have recently found that the turntable of the crane has been sticking when turning! Having taken apart the crane and investigated the issue, it seems to be the interplay between the turntable's ...
4
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1answer
135 views

Which set is this slope with holes from?

I picked up a bag of loose LEGO at a thrift shop and cannot identify which set this piece comes from: The holes pass all the way through the slope but have small details inside that prevent a ...
3
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2answers
436 views

Need advice re Power Functions

My 11-year old son wants to add power to his creations but neither of us know quite how to start this new adventure. He doesn't have any Technic or Mindstorms sets. Looking through sets online, it ...
4
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1answer
167 views

I'd like to build a mechanism to press buttons on a remote control. What is a good basic approach to use?

I have a small remote control like device with about 11 buttons. The centers of each button are placed about 1.1cm apart, and each are about 0.7cm in diameter (this means about 0.4cm between the edges)...
7
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1answer
203 views

What is the three-position lever in the Bugatti Chiron supposed to do?

I've just finished assembling the Bugatti Chiron (42083), and there's a three-position lever in between the two seats that -- probably -- isn't working: one position connects the wheels to the engine; ...
3
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2answers
102 views

What does each part do exactly?

It's been a few years since I bought a Lego Mindstorms (v2) which comes with the technic style pieces. There's beams, axels, rods, connectors... but the majority of the times when I'm building (my ...
0
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1answer
62 views

Problem With Bionicle Joint Sockets

I'm pretty sure that serious Bionicle fans have all dealt with cracking of the joint socket pieces. However, is super-gluing the broken parts a solution? I'm worried that the joint socket won't be ...
7
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1answer
1k views

9398 the front wheels rotate in the opposite direction to the rear wheel

We've just finished 9398 4x4 Crawler. Everything looks good, the motors work but the front wheels rotate in the opposite direction to the rear wheels, they also turn in opposite directions. What could ...
0
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1answer
569 views

My Lego Technic 42082 wheel stuck and can't move [closed]

After I finished my 1st manual book, I found out that my crane wheel can't move. May I know which part that I did incorrectly?
8
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4answers
313 views

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

Due to the way all the modern LEGO gears are perfectly quarter-turn symmetrical, there doesn't appear to be any way to assembly 2 opposing gears such that I get a 2 perfectly parallel axles. This ...
9
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3answers
161 views

What's the best way to start an 8 year old on Lego Technic building?

I'm a grandpa trying to start my 8 year old grandson in LEGO Technic building. I am particularly interested in mechanical parts building and motorization. He already loves LEGO and attends after ...
4
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2answers
304 views

What are some good purist rotacaster / omni wheel designs?

In robotics, rotacasters or omni wheels are often very useful. It's possible to buy LEGO-compatible ones from some third parties, here's one random example: Unfortunately, LEGO has yet to make any ...
11
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1answer
168 views

How To Sort Out 3rd Party Technic Clones From LEGO Originals?

I've recently bought bulk parts, and wish to sort out the official LEGO pieces from the inferior quality 3rd party clones. On bricks I can easily spot-out the clones, becasue they don't sport the "...
12
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2answers
228 views

Is it possible to dismantle and refurbish an original 870 Technic motor?

I have a couple of ancient 870 motors (the 4.5v ones) that run but don't sound great. I've looked for, but can't find, a guide on how to dismantle them. I'd like to either get in there and clean/...
2
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1answer
5k views

Adding Power Functions to LEGO Mack Anthem Truck (42078)

Does anyone have experience adding Power Functions to set #42078 LEGO Mack Anthem truck? It’s a Technic set, but only features manually actuated functions. I have seen it motorized on YouTube, ...
4
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1answer
116 views

Technic bits set

There are LEGO sets containing just a selection of bricks, such as 10717. Are there Technic equivalents with cogs and so-on? If not, what is the best way to acquire a general selection of cogs/axles/...