Questions tagged [technic]
A more advanced form of LEGO®, allowing for the creation of more realistic working parts.
275
questions
2
votes
1answer
74 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 ...
0
votes
2answers
28 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
votes
3answers
584 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
votes
1answer
44 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
votes
1answer
80 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
votes
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
votes
2answers
156 views
Technic Piece needs identifying
I need some of this part but I’m struggling to find any sets they came in:
3
votes
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
votes
2answers
149 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
votes
1answer
204 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
votes
1answer
117 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
votes
2answers
194 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
votes
1answer
152 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
votes
0answers
144 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
votes
1answer
150 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
votes
1answer
99 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
votes
2answers
123 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
vote
1answer
115 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?
5
votes
2answers
124 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 ...
0
votes
0answers
55 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
votes
2answers
320 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 ...
1
vote
2answers
81 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
votes
2answers
263 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
votes
1answer
133 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
votes
3answers
174 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
votes
3answers
154 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
votes
1answer
127 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
votes
2answers
242 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
votes
1answer
131 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
votes
1answer
162 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
votes
2answers
101 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
votes
1answer
53 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
votes
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
votes
1answer
440 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
votes
4answers
278 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
votes
3answers
147 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
votes
2answers
210 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
votes
1answer
148 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
votes
2answers
202 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
votes
1answer
4k 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
votes
1answer
104 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/...
8
votes
2answers
125 views
Smallest rubber wheel that can be turned by a technic axle
What the smallest rubber wheels that can be turned by a Technic axle?
This is what I have so far
Wheel Full Rubber Balloon with Axle hole #4288
Background: I'm building a GBC and I want to push the ...
1
vote
1answer
1k views
How to MOC the Rough Terrain Crane 42082
I recently got me the Rough Terrain Crane 42082 and had lots of fun while assembling it. I find it a decent Technic build and worth the price. Still I find it under-motorized. I would like to drive ...
10
votes
2answers
424 views
Identifying Parts Used For The Escape Hatch of Sariel's Tiger XL Model
I am working on a similar model of Sariel's Tiger XL in prep for my own designs of a few other German WW2 tanks, and need some help identifying a part or two.
Does anyone know what are the two parts ...
5
votes
1answer
383 views
Pattern for oscillation with LEGO Technic
I would like to simulate an oscillation movement of 120/100 degrees around a fixed point.
Something like this one:
Basically, I want to rotate a gear around its axis, but only have a partial ...
7
votes
1answer
117 views
Stuck on 42066 Air Race Jet model B
I've successfully built model A of the Air Race Jet but with model B I've got stuck on page 7, instruction 8. How do you do that?
7
votes
1answer
143 views
How can I firmly attach a triangle to a turntable?
I found a couple good technic triangle designs over on brickengineer.com. For example:
How can I firmly attach a triangle to a large turntable?
Details:
Really I only need to attach ...
5
votes
1answer
234 views
Does LEGO Digital Designer include part 4539880?
Does anyone know if LEGO Digital Designer includes the part 4539880 (often used for housing differentials) ?
2
votes
1answer
308 views
Confused about power functions motors 8883 and 8293
Is the motor that comes with the Technic power functions motor set (8293) and the stand alone motor 8883 the same? We have just built the LEGO Creator 10261 roller coaster set and it specifies a 8883 ...
3
votes
1answer
111 views
LEGO part counts on boxes without treads
I want to buy another LEGO Technic set therefore I'm trying to analyze the challenge to price ratio of different sets. I first thought that the part count may be somewhat proportional to challenge and ...
