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6 votes
1 answer
786 views

Have LEGO stickers changed materials over time?

So, has LEGO changed their materials for the stickers over time? Has the paper gotten thinner or thicker? Has the glue changed? Does any of that change how well these things survive over decades? …
chicks's user avatar
  • 5,303
12 votes
2 answers
2k views

What's the time on the LEGO clock tile?

I am reasonably confident that this tile is meant to be 2:57:38, but I am wondering if anyone knows why this time might have been chosen? … I also recognize the Disney clocks all have a different time (11:53). [edit: changed to correct time- thanks henrik] Addendum: Why did I ask this question? …
Rambling Brick's user avatar
18 votes
6 answers
46k views

Estimate building time for a given LEGO set

I'd like to be able to estimate better how much time a LEGO set will take me to build. Are there any resources online that indicate average or fastest building times for a given set? …
Michael Verschaeve's user avatar
2 votes
2 answers
331 views

Multiple Programming Blocks Running at Same Time

On the drive out (MyBlock), the large motor also starts running at the same time instead of sequentially. Can anyone help me figure out why this occurred? …
John's user avatar
  • 21
7 votes
4 answers
15k views

How to program two NXT motors to run at the same time?

I'm working on a project with multiple axis of movement… trying to get two motors to run at the same time in order to achieve a mix of two! …
Melanie's user avatar
  • 173
2 votes
0 answers
168 views

Operating first time my 42082 set [closed]

I completed building the 42082 Rough Terrain Crane set and just found out that the boom does not work and the rear spread legs do not fold out, just the front ones.
Kobi Rosenberg's user avatar
4 votes
2 answers
2k views

How to run two LEGO electric trains at the same time?

I have a switch track as well that is connected to an NXT robot to switch the track each time a train comes by. …
Michael's user avatar
  • 41
6 votes
1 answer
839 views

What's the easiest way to remove the license plate on the Time Machine?

I have the 10300 Back to the Future Time Machine. … I'm assembling it for the first time, Following the directions. and I'm at the end where they're allowing me to pick which of the three I want to install. …
McKay's user avatar
  • 437
0 votes
5 answers
4k views

Every time Robot is launched (without changing the code) it is not following the exact path

I'm working on FLL mission and every time our team launches the robot (without changing the program, and we are making sure that it is starting from same location every time) it is not following the same …
Im Xyz's user avatar
  • 3
4 votes
2 answers
116 views

Is there a time mechanism that can be added to an NXT program?

I wanted to create a system where an NXT block would be set into function at a certain time of day (maybe 5:00 and then 5:10 and so on). …
Stefanos Koutsoukos's user avatar
7 votes
1 answer
4k views

How to run 2 motors at the same time in the new EV3 version?

I want to simultaneously run 2 motors at the same time, but in the post for the older version that I saw, It talked about White Technic Bars which I don't believe is in the version that I am using, so …
Lukmatzie's user avatar
2 votes
1 answer
229 views

Evolution of the LEGO part catalog over time

I have downloaded the Bricklink catalog four or five times in the past, but the interval was very irregular. I would like to look at the evolution of the LEGO part list over the years. However, I didn …
Metalbeard's user avatar
  • 2,595
7 votes
1 answer
6k views

What causes certain LEGO parts to yellow over time, and how can this be prevented?

I've noticed that certain LEGO colors have a tendency to turn yellow over time. …
Jury's user avatar
  • 173
10 votes
1 answer
1k views

Can I use two ultrasound sensors at a time?

Is there a way to use two ultrasound sensors on a Mindstorms NXT without them interfering with each other?
user avatar
1 vote
2 answers
92 views

EV3 - At what time DIRECT_REPLY is sent by brick?

For example: I've sent DIRECT_COMMAND_REPLY to rotate the motor for 720 deg. When EV3 brick should send reply: before motor finished rotation (right after my command was received) or after motor fin …
user4053's user avatar
  • 231

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