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Questions tagged [technic]

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

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6
votes
1answer
147 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 ...
10
votes
2answers
343 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 ...
10
votes
2answers
664 views

Technic Pin/Travis Brick Legal Connection?

Is seating a Travis brick on a Technic pin a legal connection? TLG has used this construction at least once (M-Tron Particular Ionizer's "rotor"), but that was in the early 90s. Will this connection ...
2
votes
2answers
112 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 ...
18
votes
2answers
22k 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?
6
votes
1answer
305 views

Alternative to Lego's 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 ...
2
votes
2answers
294 views

What is the name of this almost triangular shaped 3x5 Technic beam?

Okay so, I've been on BrickOwl.com for the past day or two, trying to find the names of the pieces for a LEGO GLaDOS that this guy made because he doesn't give the names, at around 12:50 he uses this ...
5
votes
2answers
185 views

Simple optical switch?

I have built a conveyor belt for my son out of Lego Technic. Now, I would like to add a simple optical switch, so that the belt stops when an object arrives at the end of the belt... However, I am not ...
2
votes
1answer
192 views

Can you identify these parts? Sliding brick and plate with a groove

Please help me identify these LEGO parts - I'm trying to build them.
3
votes
1answer
412 views

How to motorize Technic 42040 Fire Plane

Where can I find instructions on how to motorize the Technic Fire Plane. We have the kit 8293 which contains a motor, battery box, lights and switch, but we have no idea how to attach them. Will ...
3
votes
1answer
103 views

Why remote controls are seldom used in Technic sets?

(As of Jul 2016) According to this, it mention that currently there are a total of 376 Technic sets. However, this information mention that only 6 of them have the remote control function. This means ...
7
votes
1answer
351 views

Technic 8858 Rebel Wrecker alternate model impossible to build?

I don't mean "difficult", I mean it appears to have an actually impossible instruction. Or am I missing something obvious? Here's the deal (pardon my lack of standard names for parts): I recently ...
5
votes
1answer
268 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 ...
3
votes
1answer
140 views

What is the name/number of this Technic brick with two arms ending in tiny clips?

What is the number of the brick shown below? I have been searching, but had no success. There is no number shown on the brick, but it has the LEGO logo.
7
votes
1answer
155 views

AA Battery Packs 54950c01 vs 59510c01

What is the difference between these two battery boxes, 54950c01: and 59510c01: except for the on/off button? Which electrical connectors are compatible with each of those? Is there a counterpart ...
3
votes
1answer
110 views

What sets are these electrical parts from, dark grey bases and remotes with orange and yellow buttons?

I have been searching for a long time but I am struggling to find the origin for these parts. I think they are possibly Power Functions IR remotes & battery packs...? Thanks for any help.
5
votes
1answer
127 views

Technic Firetruck 8289 with different wheels?

I am a bit confused with the Technic firetruck set 8289. The photo on its box: clearly shows it has the wheels 56145c02: however, according to this photo from BrickLink it has 6595c01: In the ...
6
votes
1answer
196 views

Do all Technic bushes (3713) have the LEGO label on them?

I have just found out that many of my Technic bushes (3713) do not have "LEGO" printed on them. Does this mean they are fake? I know that many parts were produced in several variations.
4
votes
1answer
1k views

Which Lego Technic sets are officially combinable?

Lego sets 42058 Stunt Bike and 42059 Stunt Truck can be combined together to build a bigger truck. We can find official instruction on the LEGO site. Are there other pairs (or larger groups) of sets ...
4
votes
1answer
503 views

What is this weird and specific technical part?

I found this part among some parts I bought. It looks like it serves a specific purpose. What is it?
5
votes
1answer
1k views

When and why were pieces 3651 and 3652 discontinued?

Bricklink has piece 3651 as Axle and Pin Connector, while piece 3652 is Engine Piston Square 2x2. You could attach them to each other to form a piston. Service pack 5260, Connecting Rods and Stop ...
15
votes
4answers
7k views

LEGO Digital Designer Alternatives

I am been using LDD (LEGO Digital Designer) for my latest NXT project and noticed a major delay in building and making instructions for my Projects (My Mindstorm projects contain well over 500 pieces) ...
1
vote
1answer
427 views

Lego Technic 42048 with LEGO 8293

I have seen a YouTube Video that claims the motorization of LEGO Technic 42048 using LEGO 8293. However, the LEGO support site does not state such compatibility. I am not able to get my hands on a ...
6
votes
1answer
2k views

What is the name of the Technic pieces that snap together to make a track?

We have these little black Technic pieces that connect together; they make a track that fits over the gears (sort of like wheeled-belt-track on excavators or tank track). Can you tell me the name of ...
7
votes
1answer
133 views

Can I still motorize Universal Building Set 8034 and other from that time with modern elements?

Set 8034 was supposed to be motorized using 8700. Of course, this is way outdated and kinda pointless to buy motor this old. Current set for this purpose is 8293. Problem is, old motor was 5 studs ...
2
votes
1answer
112 views

Two separate functions of 5282 RC remote?

Given the RC set of 5282 and 6272c01 below: Is there a solution to use the two paddles that command the auxiliary output of the receiver for different functions? For reference, see this at 1:45. ...
1
vote
1answer
144 views

What is the appropriate way to request a creator to add more of their designs to MOCHUB?

There are some brilliant LEGO creators with many designs on YouTube out there who choose to remain anonymous- who put some of their designs on MOCHUB but not others. (In particular ones relating to ...
4
votes
2answers
2k views

How does the remote control on the 9398 4X4 Crawler work?

Been looking for a good option for creating a remote control car but it seems Lego released an "official" way via the 9398 4X4 Crawler but it's expensive. How does it work? And that's really two ...
16
votes
7answers
5k views

How to unplug black friction pin connectors

Black friction pin without slots connectors are common in older Technic sets. Note that these were quickly replaced by the current version with slots that is much easier to remove. vs Especially ...
12
votes
2answers
242 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/...
-1
votes
1answer
280 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
3answers
495 views

Bucket Wheel Excavator not powering up?

I just finished to assemble the Bucket Wheel Excavator (42055) set, I inserted new batteries in the battery box and tried to power it up. The LED on the battery box blinks for a millisecond almost ...
14
votes
1answer
2k views

Will Lego repair a bad motor?

I have the Electric Technic Micromotor: http://www.peeron.com/inv/sets/5119-1 and it simply won't come on. I seem to recall at some point someone telling me a long time ago, that if you sent parts ...
3
votes
2answers
459 views

Repairing disintegrated old 9V wire

I have a number of old technic motors and battery boxes I would like to use however the wires have disintegrated in storage to the point that the metal conductors touch and short out. Does anybody ...
3
votes
1answer
377 views

Confused about Power Functions M-motor 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 ...
7
votes
1answer
156 views

How can I firmly attach a Technic 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 ...
7
votes
1answer
2k views

9398 4x4 Crawler 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
80 views

Problem With Bionicle Joint Sockets Cracking, Repair Options?

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 ...
3
votes
2answers
116 views

What does each Midstorms 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, axles, rods, connectors... but the majority of the times when I'm building (my ...
3
votes
2answers
632 views

Advice on Power Functions for an 11-year-old?

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
150 views

Which set is this 2 x 6 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 ...
2
votes
1answer
142 views

Where to buy rare old LEGO sets?

Does anybody know a good place to buy rare old LEGO sets? I'm looking specifically for old "pneumatic" featured LEGO Technic sets.
8
votes
2answers
1k views

LEGO Submarine waterproofing functional parts (e.g. motors, RC receivers)

From my understanding, the motors and RC receivers are not waterproof. Thus, the LEGO submarine from Sariel's LEGO® Workshop rust after sometime. So, is there any way to make the motors and RC ...
8
votes
2answers
367 views

Has the building technique of Technic pins in a brick cylinder 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 ...
3
votes
2answers
220 views

Lego Technic 60C01 Clutch Gear 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?
3
votes
1answer
218 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 ...
2
votes
2answers
151 views

Which set is this black LEGO Technic car with skull and fire stickers?

Please help me to identify the LEGO set. Thanks!
3
votes
2answers
181 views

3x3 black Technic bracket piece needs identifying

I need some of this part but I’m struggling to find any sets they came in:
2
votes
1answer
58 views

How to prevent PF M-motor from springing back

I'm currently building a car with a simple 2-speed remote controlled synchronized transmission, shifted by a PF M-motor. Everything is fine except for one thing, the transmission driving ring is ...
7
votes
3answers
653 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, ...