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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? …
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? …
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? …
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? …
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! …
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.
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. …
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. …
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 …
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). …
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 …
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 …
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. …
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?
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 …