Questions tagged [technic]

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

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83 views

why I adding piece of mutiple layers of paper into lsd? [closed]

I found this video the idea is by adding multiple layers of paper to get friction. I got my diff and I tried to make it. and this is not LSD. any suggestions pls?
3
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1answer
479 views

Identify this T-shaped part

Seems to be used in making a differential gear box.
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1answer
371 views

What is this LEGO part number? Technic, right angle with 4 pins sticking out

This part is required for building a LEGO steering rack. It connects the moving rack to the wheel axle.
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3answers
168 views

Why does this "useless machine" use out of production parts?

I found this new video. It uses out-of-production parts like the transmission parts. So when I tried to buy these elements in new Technic sets, I didn't find some of them. Any suggestions please?
17
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4answers
2k views

How can I get my motor to line up with a linear actuator?

I am very new to Lego, and I want to create a simple horizontal sliding door. I'm using a medium linear motor to drive a linear actuator which is attached to the door. The problem is the motor does ...
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0answers
34 views

I can't build gear on Digital Desinger [duplicate]

I'm new to this program and I can't put a gear in place. I'm trying to build a worm gear but it doesn't work.
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0answers
144 views

Are Technic and Education sets overpriced because they're "educational"?

It seems like to get a Technic set of any substantial size costs hundreds of dollars. It's kind of insane. Technic is marketed as "educational". Sometimes I wonder if The LEGO Group is ...
8
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1answer
349 views

Does a LEGO Technic Power Functions L Motor work with a v1 receiver?

Does a LEGO Technic Power Functions L Motor work with a v1 receiver? I really want to know it, because then I know what motor I should buy.
7
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1answer
1k views

Identify an unusual double-ended ball socket link part

This part is made up of three pieces - two identical ball socket ends that fit the standard tow ball size, and a thin rod connecting the two that is freely rotating. This allows the two ends to rotate ...
5
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1answer
379 views

LEGO Bugatti Issues

This is my first post and my first LEGO set. I recently built LEGO Bugatti Chiron with all the features working. I am however having an issue with the rear axle/wheels. The rear brake calipers fall ...
6
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1answer
420 views

How do I build this robot car?

I want to start using more LEGO Technic, but I'm not sure what the best way is to buy the parts without breaking the bank. I'd really like to make a robot like the ones shown in this video. Making ...
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1answer
184 views

How to fix the Lego Technic RC Stunt Racer (42095) set's turning drift?

I just finished the Lego 42095 Stunt Racer and noticed that there is a slight drift to the right when it drives forward. It works fine in reverse mode - reverses in a straight line. Any suggestions, ...
8
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2answers
1k views

Insert a gear into a turntable?

Is there a way to insert a 24 tooth gear into a turntable of the 48452cx1 type? --> Is there any model to feature any tooth gear (even smaller) used inside this turntable? This specific ...
7
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1answer
327 views

How can I build a Lego slope of this exact angle with ideally only legal techniques?

I'm currently building a functional Lego escalator that is minifigure-scaled and with staircases transitioning from flat platform to stairwell. Here's my progress so far: But with the design of the ...
5
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1answer
135 views

Live axle + steering

Does anyone know how to make a live front axle (steered, driven, beam axle, preferably with a panhard rod) in a relatively small space, I can't figure it out. This is my rear axle for guidance: Most ...
2
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0answers
262 views

Caterpilar D11 (set 42131). Control+ app doesn't seem to work

I just finished my build of the Caterpillar bulldozer D11 (set 42131) and I'm NOT able to operate it with the Control+ app on my iPhone. First the calibrate process begins: Step 1 in that is to move ...
2
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1answer
160 views

What is this Bionicle-looking set?

Can anyone identify this set? Apparently my father has a bunch of these, and he's trying to figure out what to list on ebay. It appears to be at least Lego / Technic compatible, but I don't know much ...
4
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1answer
124 views

Looking for a big set of tires and rims for my monster truck - really beefy tires

I'm looking for big beefy tires and rims for my large Technic monster truck. I also need something for off-roading.
4
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1answer
257 views

Motorizing Crocodile Locomotive set 10277 - are there any sets that include hub & motor I need?

Crocodile Locomotive can be powered up by using 1 x 88009 and 1 x 88013. Reviews on hubs and motors strongly suggest it is better, financially, to buy them as part of the sets, not separately. Is ...
3
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1answer
134 views

Gearing problem

I have a technic MOC with lots of gears which runs fine when motorized with the Control+ L motor, the motor itself attached to the "dumb" battery box that would have been included with the ...
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0answers
96 views

How to increase the voltage supplying to technic motor through the Technic hub?

I have four technic Large motor, all connected to a technic hub. I am using the motor to turn some large propellers and the hub is powered by six 1.5 V (maybe less) batteries. So each motor would get ...
5
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1answer
497 views

Control Lego Technic Control+ Hub via Python

Is it possible to control the Lego Technic Control+ Hub with Python? I have tried using Pybricks but that didn't work well for me.
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2answers
316 views

Motorized Excavator (8043) set alternatives

I'm on the search for a motorised excavator set and have the 8043 in mind. It is now retired and no longer available. Are there any alternative currently available sets? I have looked at a few options ...
7
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1answer
159 views

Reinforcing a pair of Bent Double 11.5 Liftarms under Rotational Tension

I purchased a clone MOC out of interest a few months back, this following set. Because it does use clone pieces, I knew there was a high chance of breakage and poor fit, especially in the tensegrity ...
3
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2answers
148 views

Most cost efficient length for pneumatic hoses?

As the title says, I would like to know what the most cost efficient length of pneumatic hose (including 99021s) is, assuming the average length of each piece is 12cm (4.7") and I can cut large ...
4
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1answer
659 views

Can anyone identify these parts? Technic, liftarm connected to a circle

I'm trying to follow a video MOC tutorial but I can't figure out what this brick is. Part number would help.
3
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1answer
183 views

Volvo Articulated Hauler (42114) doesn't operate the bucket

I cannot get the rams to lift or lower the tipper body I suspect its something to do with the clutch mechanism since all the shafts and gears rotate freely until the clutch is connected. The white ...
3
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0answers
274 views

Soft rear suspension on Landrover Defender too low [closed]

Can't answer this officially because I haven't enough points but the photos on the only other answer are of the front end, the problem I had on the rear was that the bottom shock absorber brown ...
6
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1answer
402 views

Any build instructions for vertical Technic/Lego conveyor belts?

I'm trying to figure out how to continuously lift a stream of incoming pieces up vertically, at least 10cm. This is my first real custom build attempt, so I'm very much at a loss on how to go about it....
5
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1answer
899 views

I found these images of parts and want to find their part numbers

So I found this lot on the internet but don't trust the seller. What I want to do is find the part numbers of the pieces on the image and buy it from a reliable source. I tried to find it in multiple ...
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0answers
58 views

42082 Rough terrain crane [duplicate]

Crane can not be pushed forward or backward. It seems the front and back wheels want to move in different directions.I the rear wheels are lifted off the ground crane can be moved forward and backward ...
2
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1answer
125 views

Lego bags missing sets

I have some Lego bags that I do not know which set they belong to. Can you guys help me?
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2answers
252 views

What 3D modelling services could I use to create custom LEGO pieces?

I want to create some custom LEGO Technic pieces, but I can't seem to find any software that is good at making it. I have tried using Blender, but it is hard to create holes. Do you have any ...
4
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1answer
194 views

How would one parametrically create a LEGO-compatible gear?

If a gear was intended to smoothly mesh with standard LEGO gears, how should it be defined? While I know that the mean diameter (average of inner and outer diameters) of a LEGO gear should be 1mm/...
3
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1answer
250 views

Technic Rough Terrain Crane (42082) doesn't move

After first book, crane won't roll if pushed. If this normal. I know when you free soon one wheel, the other will go opposite direction, but when I try to spin all four in one direction, it locks. It ...
6
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2answers
296 views

What's the purpose of brick 46835 (two wheels clutched into each other)

There is this strange wheel-like part consisting of two pieces snapping into each other and offering to insert axles from both sides, as shown in the first image. What is the purpose of this part ...
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0answers
101 views

Technic 4x4 crawler questions

I have the Technic 4x4 Crawler 9398 fully assembled and in working order, but the rear U-Joint sheared itself in half during normal use. I have a replacement piece but now I can’t get the wheels to ...
7
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2answers
634 views

Connecting an axle to a stud on the ground for railings

I'm trying to build railing using axles and connectors and am not finding an easy way to get the axles that go to the ground to connect in a way that would be best for my design. Three options I've ...
4
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1answer
710 views

What is the Bluetooth PIN for the LEGO train PUP remote (88010)

I'd like to use the Powered Up train remote, #88010 as a simple controller (bang-bang only, obviously). It's Bluetooth, and it shows up as a device, but the PINs 0000 and 1234 don't appear to work. ...
2
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0answers
109 views

Operating first time my 42082 set [closed]

I completed building the 42082 Rough Terrain Crane set and just found out that the boom does not work and the rear spread legs do not fold out, just the front ones.
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0answers
105 views

Oil for old 4.5v electric motor? (UK)

Hi I've just got my old lego technic motor from the loft. It works but squeals in a way I don't remember it doing (35 years ago). I assume some lubrication would help and I've seen references to 3-in-...
12
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1answer
2k views

Motorized speedboat from Technic Catamaran alternate model?

The alternate model for the 42105 Technic Catamaran set looks a lot like a remote-controlled speedboat. This set doesn't actually come with any motors, or even propellers, so obviously this model isn'...
16
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1answer
4k views

How do the various LEGO springs compare?

Recently I received set 42107 Ducati Panigale V4 R. I noticed that this set includes a new spring - part 65151c01 Technic, Shock Absorber 11L with Internal Spring, Dark Bluish Gray Shaft, and Light ...
25
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1answer
4k views

Is it possible to build a working 100% LEGO glider with the Technic Catamaran sails?

In the past I've tried to make working LEGO gliders but since all the LEGO sails were either too small or the wrong shape the only thing that ever kinda worked was using paper over Technic beams (in ...
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
250 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
181 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 ...
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2answers
450 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
2k 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 ...
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0answers
245 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 "...

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