Questions tagged [technic]

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

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8
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1answer
1k views

What is the purpose of the 8 tooth timing gear?

I recently ran across the 32060 Technic Gear Timing Wheel 8 Tooth element when sorting a mixed bag of parts. This element doesn't appear in many sets as a functional element. Here's one example from ...
2
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3answers
130 views

What are the arguments for and against an adult tackling a complex LEGO Technic kit as their first (and possibly only) build?

Suppose I want to get an overall view of LEGO as an adult and can afford to buy an expensive kit. I have the following abilities Good eyesight with glasses Good hand-eye coordination and ...
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2answers
95 views

What proportion of LEGO Technic parts are specialised in a given kit?

I do not have any Technic kits. I'm not even a LEGO user. However I am interested to know the following: In a typical Technic kit, how many of the parts are standard Technic pieces and how many parts ...
7
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2answers
196 views

How to integrate hardware/embedded button with LEGO?

I have two different buttons B3F-1000 and 3a250vac switch which i want to integrate into a lego "machine" which i'm powering with an arduino. Since the rest is integrated into lego plates, ...
3
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1answer
42 views

How to Motorise 42111 Dom's Charger Technic

I just received the 42111 Dom's Charger set as a gift, and I was wondering whether it could be motorised and RC controlled? A part list would be great as I don't own any Power Function parts. Cheers ...
0
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0answers
49 views

The power up app wont connect to my technic hub

I have recently bought a Technic Hub and four Powered Up large motors, but currently I only put two motors into the B and D port of the hub. I downloaded the Powered Up app to a pad and used the "...
5
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1answer
276 views

Can you help identify this olive green space fighter lego set?

This set was bought about 10 years ago for my son. It is predominantly olive green with red trimmings. It has stickers with WARRING A-347 written on them. It has some moving parts that seem like ...
3
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1answer
81 views

Interface A missing PCB

I have a Technic Interface A with the cables but lack the printed circuit board (PCB) for PC that I need to use it for automating my models. The card when it was for sale had markings of Lego 9771 and ...
2
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1answer
231 views

how deep can the axle go in the Power up L motor

I am trying to make a MOC but I can't decide how long the axle could be so it can go fully into the motor but not extending out of the other side. Could you tell me how long the axle can go in?
1
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1answer
75 views

Is the Technic hub putting the battery in series or parallel

Can anyone tell me how the battery in the Technic Hub is connected? Are they connecting the batteries in series or parallel? It is the hub that powers the motors, right? If all 6 AA batteries are ...
4
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2answers
1k views

Why do gray axles appear black and black axles appear white and black in this manual?

I've been looking through the parts of an old manual I have and I noticed the odd-length gray axles appear black and the even-length black axles appear white and black. Is this just an artifact of ...
1
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1answer
105 views

Lego technic 42082 4 wheel steering issue

I have just completed the build and everything appears to work as it should except the 4 wheel steering. When you turn the small wheel on the rear of the crane only the rear wheels steer. The front ...
8
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2answers
5k views

If I were to make a LEGO fan how would I make it blow air on me?

I was just wandering off into my imagination and then it hit me: I should make a LEGO fan? I mean, how hard could it be? It is actually very hard for me. No matter how much ratio I put on it, it ...
2
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2answers
218 views

How can I make my LEGO engine go faster

I have a LEGO engine powered by a PF XL motor but I didn't realize until now that the motor is not that fast and that even when I increase gear ratio the gears always get either unattached or jammed. ...
4
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2answers
799 views

Can you help me identify this part?

After a lot of circus and calisthenics with a magnifying glass and lamp, I'm still unable to read the part number. I've also clicked thru' about 180 pages of LEGO 'Pick a Brick' and didn't find it ...
2
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1answer
349 views

Can Lego Remote Control 88010 control Lego Technic Hub 88012?

I have been exploring the new Bluetooth Technic smart hubs with the Control+ app and PoweredUp app. I would like to also use a physical remote. I have the Technic smart hubs that come with the ...
-1
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1answer
71 views

Bionicle generation 3 [closed]

Hey LEGO will you make another Bionicle reboot? If you are is it going to be a bit more like g1 but also bring back a few g2 characters and I hope it is either ccbs, you bring it back or technic like ...
2
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1answer
105 views

Winch with String

I'm considering buying a few winch's with string. I don't understand what I need to make it turn. It doesn't look like a regular technix axle goes inside it right? I've looked at a few of the ...
5
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2answers
218 views

How much energy do LEGO Technic gears lose to friction?

So, I recently watched a video by the Brick Experiment Channel about building a 1 Googol:1 reduction gearbox, which at the time of writing this question, is at #44 on Youtube Trending. At the end of ...
10
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1answer
1k views

How can I make church bells with a pull cord?

I would like to allow the viewer to pull on some strings or chains and let that ring my church bells (I know it won't make much sound, that's fine). I'm thinking I'll need a pulley and some string, ...
3
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4answers
493 views

How to prevent my connected axles from falling apart?

In my EV3 robot, I have two rear axles connected to each other using this part mounted like this: [ The problem with this construction is that after a while of driving, the axles disconnect like ...
3
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1answer
170 views

Which pieces were used to make the flexible mesh skin for the life size Lego Bugatti?

In the linked video, around the 1:50 - 1:55 mark, a person can be seen picking up a flexible hexagonal mesh, and bringing it to the side of the vehicle. Also, close ups are visible around 2:03 - 2:37. ...
2
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0answers
67 views

How to get Lego Mindstorms EV3 expansion set (45560) programmes in Scratch

I bought recently Mindstorms EV3 expansion set (45560) and found out that the available programs are written in old LabView-style programming language: https://le-www-live-s.legocdn.com/sc/media/files/...
0
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0answers
71 views

Front driveshafts on landrover defender don't stay in place

The front driveshafts on my Land Rover Defender keep falling out, then the cogs fall out of the front differential. I have done them three times as per the manual, but every time I get the same result....
10
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1answer
2k views

Realistic Lego car sets containing gearboxes and engines?

Lego Technic 853/956 Auto Chassis contains a car chassis, complete with a transmission gearbox. Other sets like Lego Technic 858/8858 Auto Engines contain parts to build working models of real-life ...
4
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1answer
122 views

Bugatti Chiron - loose connection to wheels

I’m currently building this set and I notice that the connection to the front wheels often falls out. This is the small red line between the wheel and ball joint. It depends on the angle. It is ...
1
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1answer
97 views

Transparent Technic elements

I know these Technic liftarms come in clear transparent: https://www.bricklink.com/v2/catalog/catalogitem.page?P=32278#T=S&C=12 https://www.bricklink.com/v2/catalog/catalogitem.page?P=32009#T=S&...
5
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2answers
204 views

Part differences between main and alternate models of 8285 set

Someone is selling the alternate model of the 8285 set But I'm really more interested in the main model of that set. Does anyone know how many bricks I'm going to be missing when only the bricks ...
1
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1answer
87 views

What set did this Technic container come from?

This box has a lot of Technic LEGO pieces but I don't know which set this is from. The box is small, violet.
2
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1answer
227 views

How to make a Lego continuous conveyor belt

So I need to make a continuously working conveyor belt transporting blocks. I have seen this post, but additionally, as already said, I have to make it work continuously transporting blocks,so I have ...
7
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3answers
1k views

Clip a wall to a 6 or 7L pole

I'm planning on making a wall 6 bricks tall. The wall will have some vertical clips coming out to clip to a vertical pole. Unfortunately, the only 6 or 7 length bars appear to have the little stopper ...
5
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2answers
395 views

How to locate pneumatic leak

I have a simple pneumatic claw with a 2 pump compressor that I built somewhat recently. It worked fine for a while, producing up to 4 bars of pressure, but then the system wouldn't increase the ...
3
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1answer
347 views

Issues with my LEGO Land Rover Defender - Rear Wheel Keeps Popping Off

I just finished the assembly of the Land Rover Defender Technic model and it appears I have trouble in the rear... the rear left tire keeps popping off every time I try to roll forward. It is secure, ...
6
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2answers
137 views

Overview on how to use special Technic parts?

I just came out of my "Dark Age" inspired by my kids growing up and getting more and more out of Duplo and into Lego. I bought a mixed lot of Technic parts and man, there are a lot of new parts! So ...
16
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2answers
3k views

Is this a real Technic cloak?

I found a cloak piece in some used LEGO I bought from a former LEGO employee. The cloak does not say LEGO on it, but it fits perfectly onto Technic figures with a satisfying pop and matches the ...
1
vote
1answer
246 views

How to motorize a LEGO Pneumatic valve?

I am working on a project that requires remotely switched LEGO valves, and I tried many designs I found, and none of them worked due to the valve causing too much resistance. Does anyone have a ...
4
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2answers
355 views

Which parts have no-friction Technic axle holes?

I want to make a no (or very low) friction inline coupling for axles. The axles must turn, transmit moderate torque, and be in phase (therefore backlash must be minimal). The axles remain inline at ...
7
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1answer
206 views

Harley Davidson chain belt running jolty

I am building the Harley Davidson Fat Boy from Creator Expert (10269) and when installing the chain belt that connects the engine gears to the rear wheel I noticed that it runs quite jolty, with the ...
6
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1answer
222 views

LEGO Technic #42082 - Rough Terrain Crane: Loose Feet

LEGO Technic crane set #42082. Putting the feet on now, are they supposed to click in somehow? Also, my feet don’t seem to touch the ground. I’m worried I messed up somewhere a long time ago. Help ...
18
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2answers
23k views

Is connecting LEGO studs on Technic pins legal?

I see it in MOCs all the time, and I’ve seen studs connect on half pins in official sets, but what about full pins?
2
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2answers
323 views

Looking for a way to connect SG90 servo motor to Lego Technic hole in a brick, in order to control Lego train tack switch

After looking at this question: Can I remotly control the points on PF train tracks? I got the idea of controlling the train track switch handle using a servo motor that will be able to move the ...
9
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3answers
4k views

Alternative to LEGO CONTROL+ app

My son just received the Liebherr R 9800 excavator 42100 LEGO set. It would seem the Control+ app that is recommended for it simply won't work. It doesn't even connect to the blocks. What are the ...
10
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2answers
445 views

All-purpose Technic set?

For LEGO Classic there are plenty of "build anything" kinds of sets, but is there something like that for Technic? Ideally, I'm imagining a box of the most useful 1000 or so Technic pieces, so that ...
6
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1answer
2k views

Issues with my LEGO Land Rover Defender - Low rear

Just built the 42110 LEGO Land Rover Defender and found the rear of the car sitting very low on its base and the rear wheels almost touching the wheel arches. This is very low compared to the front ...
12
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2answers
927 views

Is there a way to plan and organize your LEGO project like a GitHub hosted software?

I have the idea to host, plan and maintain a LEGO project (building a MOC in several steps with different functionalities) like a software in GitHub. The project should have forks, pull requests and ...
3
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1answer
234 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
196 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
votes
1answer
249 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?
6
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2answers
367 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 ...
5
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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 ...

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