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11 votes
1 answer
529 views

Plate perpendicular to bottom of 2x2 round: is this connection legal?

I've played enough with 2x2 round plates and 1-stud-wide plates to know that it's possible to attach a plate underneath a 2x2 plate and perpendicular to it, like so: The same connection is possible ...
IvanSanchez's user avatar
  • 8,714
10 votes
0 answers
331 views

How To Ensure Only One Brick is Fed Into a Lego Sorting Machine at a Time?

In this video, they create a machine that can take a bunch of legos put on to a conveyor belt and, using a camera, sort them into a number of categories. I am building a (smaller) version of this, and ...
Brendan R.'s user avatar
9 votes
0 answers
480 views

I got a vintage roof brick that is very nice but can’t find what it is?

I got these parts in a lot, but can’t find any history or brand or set on them?
Maurice Hofenk's user avatar
9 votes
0 answers
324 views

Are LEGO Quatro compatible with larger bricks? Soft Bricks or other?

There is a nice discussion here on LEGO+Duplo+Quatro compatibility. I posted what I found here where a LEGO storage block is the right dimension to be double a Quatro (4x Duplo, 8x normal). However, ...
Special Ed's user avatar
8 votes
0 answers
122 views

How to effectively attach mirrored stickers to an interior curved surface?

I'm working on 10283, Space Shuttle Discovery and I've reached pack 13 step 282 where I'm assembling the cargo bay doors. These doors have reflective stickers that attach to the insides of the curved ...
Catija - too's user avatar
8 votes
1 answer
411 views

Motor problems in 60051

The motor in my High Speed Passenger Train set (60051) has stopped working properly. I just put brand new batteries in and it acts just like if they were worn. Moreover, the little brown capacitor ...
Heki's user avatar
  • 181
7 votes
0 answers
170 views

Help identifying bricks - non lego

Please help me identify this non-lego brick set. I got this bricks set in the 1980's and had a lot of fun with them. But I cannot find what they are. I lost the box, but i remember there was a castle ...
sveco's user avatar
  • 71
7 votes
0 answers
449 views

Digital tool for roller coaster physics

I'm currently working on a roller coaster MOC with a looping. I started physically building the MOC but quickly recognised that it is quite a mess to build something, tear it down rebuild it, etc. ...
Spock's user avatar
  • 669
7 votes
0 answers
195 views

Oil for old 4.5V motor? (UK)

I've just got my old LEGO Technic motor from my 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-ONE ...
Derek's user avatar
  • 171
6 votes
0 answers
93 views

Connections for windup key holes?

I recently bought a set with a Windup Key (piece 29979/79812) and took note of its holes since they're slightly smaller than the standard rod / minifig accessory diameter. After an (admittedly brief) ...
BambooleanLogic's user avatar
6 votes
1 answer
179 views

Hinge parts between instruction steps in Studio 2

LEGO instructions sometimes hinge out bricks between two steps, as shown in this example taken from an instruction randomly: Step 25: Step 26: Is it possible to do something similar in Studio 2?
Spock's user avatar
  • 669
6 votes
0 answers
286 views

What brand is this brick with a logo that looks like an elongated C and a square?

Can anyone tell me about this brick? There is no Lego logo on it. It looks well made and fits perfectly with real Lego bricks.
pmr3000's user avatar
  • 61
6 votes
0 answers
219 views

Was the color variation on 1970's transparent pieces really that bad or are mine unusual?

Having gone through a bunch of old 1970's Lego (I rebuild all my original sets during the Covid lockdown) I noticed that color-less transparent bricks and slopes have a lot of color variation to them. ...
Tonny's user avatar
  • 1,284
6 votes
0 answers
284 views

Fix Lego M Motor - The hooks aren't budging

I have a Lego M motor that is broken. I'm following the instructions here to try to fix it but the little tabs that hold the plastic frame together just won't budge no matter how hard I'm pushing them ...
mj_'s user avatar
  • 1,119
6 votes
0 answers
669 views

What is the number printed under the barcode of a Lego set?

I’ve got two sets of Lego Ideas #025 (steamboat Willie). They have the same barcode. Underneath the barcode there are some small numbers: one box has 118789 970, but the other box has 118789 017. A ...
Richard Pearson's user avatar
6 votes
0 answers
686 views

Building instructions: Robot Spider Pen by Ricardo Oliveira

Some time ago I found the following youtube video by Ricardo Oliveira of a small NXT plotter that crawls over a whiteboard. It has two strings that can be shortened through coils and with this, it ...
halirutan's user avatar
6 votes
1 answer
325 views

Toa Terrain Crawler alternate build instructions

I was building the LEGO Bionicle Toa Terrain Crawler, (8927), when I saw at the back of the instructions a photo of an alternate helicopter-type build. Where can I find the instructions on how to ...
Otherpianoguy's user avatar
5 votes
0 answers
322 views

Half the size of Lego but only 1/3 the height

I bought a batch of like Lego but small off eBay. I'd like to know what brand. The ×2's have tubes, but ×1's have no pillars. Colours like Lego, red, blue, light & dark bluish grey, B&W. ...
Andrew Hodson's user avatar
5 votes
0 answers
158 views

IR remote 8879 - cannot control speed of the motor

I got the 7938 train set for my kid. I hook up the battery to the receiver and try the IR remote 8879 with it. The motor starts running/spinning, but I can not control the speed with the orange "...
Henrik Dahl's user avatar
5 votes
0 answers
782 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 ...
Simba's user avatar
  • 51
5 votes
0 answers
328 views

Help identifying non Lego blocks

I'm in the UK. I've been given a box of old Lego bricks from when I was a child (80s). These were mixed in. I seem to recall they made a house perhaps? They are larger than Lego, smaller than Duplo (...
user18896's user avatar
5 votes
0 answers
201 views

what plastic is used in the floatable hull of 60266 Ocean Exploration ship?

I need to know what plastic is used for the hull (dark blue) of the 60266: Ocean Exploration Ship, in order to glue a reinforcement on. I bought this for my boys (younger than the advertised 7+). It ...
some bits flipped's user avatar
5 votes
0 answers
214 views

What's this rod part?

Any ideas? I can't find a part number anywhere.
Daniel's user avatar
  • 51
5 votes
0 answers
249 views

Identify brand of these non-LEGO parts

I bought a bulk of bricks, some of them are not LEGO, but the quality is perfect - gloss, fit, plates have groove, transparent parts are clear. I would like to know which brand also produces such nice ...
rostanek's user avatar
  • 233
5 votes
0 answers
121 views

How do I fix a loose joint between the top and bottom of the digger base?

How do I repair a loose-fitting joint between the top and bottom of the Duplo digger base? It has been used for only about a year. Is the wear more likely on the top or the bottom piece?
Duncan DJ's user avatar
5 votes
0 answers
75 views

Connectivity graph for a digital model

I'm looking for a way to take a digital representation of a model (e.g. an LDD or LDraw file) and extract from it a representation of the model that describes which pieces are actually connected to ...
David Marx's user avatar
5 votes
0 answers
753 views

MouldKing set 13132 - Original design, alternate build or cloned MOC?

It seems that Chinese clone brand Mould King will be producing a new set that looks a bit like LEGO's Disney Castle set (71040). It has two times as many parts, however, and unlike LEGO's Disney ...
John Slegers's user avatar
  • 1,105
5 votes
0 answers
213 views

String thickness comparison

I am currently working on a project which uses a massive array of strings linking little levers. I am currently using the "thin" type string as it is the only type I have, but I am running into ...
PGmath's user avatar
  • 444
5 votes
1 answer
258 views

Does anyone know what this piece is? 3224730, with a bar at right angles to two more-rectancular bits

I found this piece and don't have any idea where it came from or what it would be used for. The number "3224730 2" is stamped on the side. For scale reference, the long round bar portion ...
dschaeffer's user avatar
4 votes
0 answers
81 views

Should there be a LEGO logo inside SW Clone Trooper helmet?

Should the Clone Trooper (sw0541) helmet have any LEGO markings inside proving its authenticity? I have one without any marking inside. Is it original or not?
Yulia's user avatar
  • 41
4 votes
0 answers
215 views

My minifigs have been doodled with marker pens. How can I clean them?

So simple question really, child drew on figures with marker pens, how can I clean them off with out removing the original prints ?
Skeith's user avatar
  • 193
4 votes
0 answers
265 views

Issues with Move Hub and Controller: first connected device works, but not both

I'm having issues with the move hub 88006, the controller 88010 and the Powered Up app. The issue is the same on multiple devices. Basically, whatever I connect via Bluetooth first is what works, but ...
DavePenn's user avatar
  • 141
4 votes
0 answers
325 views

Weird "reflection" when rendering on BrickLink Studio

When I was rendering my train MOC build, I noticed a weird "reflection" on every black piece. What is this? Are the resolution or quality too low?
DimDaz's user avatar
  • 121
4 votes
0 answers
204 views

How to pose figs in LeoCAD?

I’m new to LeoCAD. I find it’s easy to add regular minifigs or Technic figures to a model, but I can’t find a way to pose them. For instance I could build a car and add a driver, but the figure is ...
Charles Jenkins's user avatar
4 votes
0 answers
53 views

How do I sync audio and movement on my NXT 2.0?

How do I sync audio and movement with my NXT 2.0? I'm building an animatronic head and I can't find a good way to sync it with external audio because the internal speaker is too quiet.
ceehkiberki965's user avatar
4 votes
0 answers
244 views

Migrate Lego Boost Android app data to another device

I have a Lego Boost Android application installed on device #1 and the app is logged into my LEGO cloud account (the same used for Lego Life etc. too) and is fully synced with cloud. On this device I ...
Kozuch's user avatar
  • 239
4 votes
0 answers
291 views

Unknown Minifig Accessory (chrome silver/pearl gold)

I got a bunch of these in a bulk bin and cannot figure out what they are. It is possible they are not lego itself as I cannot find a lego logo on it anywhere. Anyone know what they are?
Stonepaw's user avatar
4 votes
0 answers
766 views

Lego Mindstorms NXT 2.0 Not turning on

I have a Lego Mindstorms NXT 2.0, which worked well for a couple of years. However, after the last few weeks, it seems to not boot up. I took it apart, and noticed it seems to have a different ...
Ruhi Batool's user avatar
4 votes
0 answers
326 views

Europe based printing services for low quantity high quality custom printed tiles

I've found many websites providing a service for custom printing of LEGO tiles : United Bricks Brick Engraver BrickSanity Fab-Bricks Citizen Brick EclipseGrafX Minifig Madness BrickTactical ... I ...
John Slegers's user avatar
  • 1,105
4 votes
0 answers
638 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 ...
Jedi_Maseter_Sam's user avatar
4 votes
0 answers
858 views

EV3 SPIK3R Mission 2 doesn't move

So I was building Spik3r and I thought I got mission 2 completed. Wheels are turning, legs are moving but the robot just does not move. It looks like the small wheels should be moving the robot but ...
Heikki Taavettila's user avatar
4 votes
0 answers
497 views

RCX + java + usb-to-serial

I am trying to get an old RCX working with leJOS. I already have it working with NQC and BricxCC. While NCQ/BricxCC seems to recognize my usb-to-serial (which appears as "COM5" to the OS), the leJOS ...
Fenn's user avatar
  • 91
4 votes
0 answers
722 views

Daisy chaining EV3 with RobotC

I'm trying to run EV3 programs with RobotC and trying run on EV3 Daisy Chaining. I have three independent EV3 bricks labelled A,B,C. I want, according to the color reading by the color sensor on ...
FDuarte's user avatar
  • 295
4 votes
0 answers
518 views

LEGO turing machine using Rascal

I followed the instructions on LEGO Turing Machine and succeeded to build it. Next I've tried and failed to program it using NXT Mindstorm GUI. The site mentions a Rascal framework, but it doesn't ...
serj's user avatar
  • 141
4 votes
1 answer
455 views

How to power up MOC-0308, based on Technic 8297 Off-Roader?

I have built the following MOC, with details here and here. It is pretty complete, although I would have tried some servo motor for steering. But after I've finished it, I've got into trouble: ...
mike's user avatar
  • 503
3 votes
0 answers
156 views

Building technique for modelling Thomas the Tank Engine faces

I'm building Thomas the Tank Engine trains, and I'm looking for techniques to build realistic faces. I'd like the trains be able to run on standard LEGO rails, so I'm targeting 8-wide engines. This ...
jncraton's user avatar
  • 40.5k
3 votes
0 answers
221 views

LEGO Studios Movie Maker Camera (1349) (2000)

A few months back I had purchased the LEGO Studios Movie Maker Set (1349) and have been tampering with it, specifically the camera, to see if I can get it to work on my Windows 11 laptop. Was able to ...
DraconisN0x's user avatar
3 votes
0 answers
59 views

Which alternative electric connector is compatible with 12V plugs?

Which alternative commercial off-the-shelf electric connector matches with the LEGO 12V connector? Are there for example mini-banana-plugs which match with the LEGO standard?
Jonas Stein's user avatar
3 votes
0 answers
154 views

Can someone indentify this clone brand?

Just bought some 12 kilos of unsorted Lego. As usual there is some other stuff mixed up as well. Among other things around 60 bricks of some clone brand that I have never seen before. Mostly 4x2 and ...
Tonny's user avatar
  • 1,284
3 votes
0 answers
214 views

Purpose of the four rubber tires in The Globe set (21332)

I just finished building The Globe (set #21332), and I'm curious what the purpose of the four rubber tires on the interior of the model is (highlighted with red box): I had hoped that towards the end ...
raner's user avatar
  • 203

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