Questions tagged [technic]
A more advanced form of LEGO®, allowing for the creation of more realistic working parts.
356
questions
3
votes
1answer
90 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 ...
0
votes
0answers
51 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
votes
1answer
109 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.
4
votes
2answers
216 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
votes
1answer
133 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
votes
2answers
125 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
votes
1answer
633 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
votes
1answer
112 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
votes
0answers
153 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 ...
7
votes
1answer
305 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
votes
1answer
874 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 ...
1
vote
0answers
57 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
votes
1answer
108 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?
4
votes
2answers
194 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
votes
1answer
131 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
votes
1answer
145 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
votes
2answers
263 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 ...
1
vote
0answers
97 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
votes
2answers
614 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
votes
1answer
272 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
votes
0answers
105 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.
6
votes
0answers
89 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
votes
1answer
1k 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'...
15
votes
1answer
3k 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
votes
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
votes
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
votes
3answers
222 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 ...
1
vote
2answers
155 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
votes
2answers
326 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
votes
1answer
1k 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
votes
0answers
166 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 "...
6
votes
1answer
341 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 ...
4
votes
1answer
136 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
votes
1answer
244 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
vote
1answer
91 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 ...
5
votes
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
vote
1answer
399 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
votes
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 ...
3
votes
2answers
527 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
votes
2answers
836 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
votes
2answers
2k 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
votes
1answer
87 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
votes
1answer
118 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 ...
6
votes
2answers
406 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
votes
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, ...
4
votes
4answers
519 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
votes
1answer
219 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
votes
0answers
164 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
votes
0answers
99 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....
12
votes
1answer
3k 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 ...
