Questions tagged [technic]
A more advanced form of LEGO®, allowing for the creation of more realistic working parts.
282
questions
3
votes
1answer
48 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
votes
2answers
106 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
votes
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
vote
1answer
144 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 ...
4
votes
1answer
178 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
votes
0answers
84 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
votes
2answers
133 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
votes
1answer
125 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
31 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
614 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
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
votes
1answer
87 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
165 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
171 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
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
votes
1answer
150 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
201 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
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
votes
0answers
156 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
191 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
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
votes
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
vote
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?
5
votes
2answers
131 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
59 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
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 ...
1
vote
2answers
84 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
340 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
134 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
228 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
166 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
132 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
362 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
158 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
192 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
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
votes
1answer
61 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
542 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
308 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
157 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
274 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
162 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
225 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
113 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
127 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 ...
