Unanswered Questions

191 questions with no upvoted or accepted answers
10 votes
0 answers
273 views

Can anyone identify this trans-neon green piece?

I've got two of these little fellas in my mixed box circa 2000. No markings and no ideas! Dish 2 x 2 Inverted for reference. *edit, added Antenna Whip 8H for another reference
10 votes
1 answer
431 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 ...
10 votes
0 answers
308 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 ...
9 votes
0 answers
434 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?
9 votes
0 answers
294 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, ...
8 votes
0 answers
113 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 ...
8 votes
1 answer
342 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 ...
7 votes
0 answers
161 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 ...
7 votes
0 answers
375 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. ...
7 votes
0 answers
189 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 ...
6 votes
1 answer
234 views

Looking for a LEGO promotional, Christmas-themed video game from the 90s-00s about spaceships

This is one of my childhood white whales and I cannot find the answer anywhere. When I grew up in France, I remember a very short computer game which was actually an ad for LEGO spaceships. Given the ...
6 votes
0 answers
271 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.
6 votes
0 answers
214 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. ...
6 votes
0 answers
271 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 ...
6 votes
0 answers
573 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 ...

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