Most Popular
1500 questions
10
votes
2 answers
Is it possible to use EV3 MicroPython with Windows 7?
I have been trying to get python on my EV3 brick using an EV3 MicroPython SD card image as described on the Lego website. The EV3 brick seem fine with its new OS.
Instead my problems are at the computer end. When connecting the EV3 to my PC by USB…
Danielle
- 101
- 2
10
votes
1 answer
What was or is the longest running Lego set?
What is the longest running Lego set, retired or still in production?
I remember seeing set 7239 Fire Truck in the Lego catalog for years. That fire truck out lived three fire stations (7240, 7945, 7208)!
I'm having trouble finding an end date for…
David
- 1,357
- 11
- 31
10
votes
2 answers
How does the cost of a LEGO railroad compare to a traditional scale railroad layout?
How do the costs compare between a railroad layout constructed with LEGO trains and a nearly identical layout using traditional scale models, such as HO?
Village
- 747
- 1
- 5
- 14
10
votes
1 answer
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?
user41
10
votes
3 answers
Is there a way to draw LEGO figures using Blender?
I have some basic experience in Blender. Is there any way to insert pre-drawn LEGO pieces into Blender?
user41
10
votes
1 answer
How can I catalog my LEGO pieces?
I have a fairly large LEGO collection, but not large enough that I can build anything and everything, given instructions. It's already organized quite well, but how can I catalog the pieces I have so I can easily tell whether I can build something?
Tuesday
- 331
- 3
- 8
10
votes
1 answer
Do LEGO stores sell bricks in bulk?
I've seen these pictures of LEGO stores, but have been unable to work it out: Are they are plastic bubbles on the wall that you can dig youe hand into and buy LEGO bricks in bulk, or are they just for decoration? Do the high-street LEGO stores offer…
tombull89
- 3,197
- 2
- 27
- 31
10
votes
5 answers
What is the white building pictured in the San Francisco (21043) set?
Can someone help identify what the red-circled building is (not the cylindrical Coit Tower) in this set? The others are obvious, but this one does not seem to be identified in any of the official literature.
Kirk Woll
- 371
- 1
- 11
10
votes
1 answer
Trying to identify old 2x4 plate
Another odd-ball in my endless sorting and cleaning: a basic 2x4 black plate, but with two raised hollow tubes, larger than a stud. No part number. Here's a picture of it:
JohnnyB
- 3,264
- 11
- 27
10
votes
1 answer
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 be the problem?
Belle
- 103
- 1
- 4
10
votes
4 answers
How to install Firmware 1.10E on an EV3 home/retail edition brick
If and how can you install firmware 1.10E on an EV3 brick from an home/retail edition set (instead of an education set)? Updates 1.0E9 are only recognized from the Mindstorm software, also with Education Mindstorm software version.
I am very…
Rxl
- 113
- 1
- 1
- 5
10
votes
6 answers
The controversy around clone brands
The origin of the self-locking building bricks
Hilary Page was born in 1904 in Sanderstead, England. Along with several partners, Page decided to go into the toy business in 1932. In 1936, he began manufacturing Kiddicraft ‘Sensible’ toys using new…
John Slegers
- 1,105
- 1
- 11
- 26
10
votes
4 answers
How can I assemble 2 opposing gears so that the axle rotations are perfectly parallel?
Due to the way all the modern LEGO gears are perfectly quarter-turn symmetrical, there doesn't appear to be any way to assembly 2 opposing gears such that I get a 2 perfectly parallel axles.
This image illustrates the problem:
When one gear it…
Alexander O'Mara
- 13,302
- 4
- 43
- 97
10
votes
1 answer
Where can I find documentation on the LEGO Wireless Protocol for Powered Up devices?
LEGO BOOST and LEGO Powered Up Smart Hubs use Bluetooth Low Energy to communicate to apps. Where can I find documentation on the communication protocol so that I can build my own app for these devices?
David Lechner
- 9,698
- 18
- 59
10
votes
1 answer
Can I store LEGO in negative (minus) Celsius?
I've found this question: How can I store LEGO bricks to prevent damage? and the answers don't tell, what happens below 0°C.
Can I store unopened LEGO boxes where temperature can go down until even -15, -20°C?
Display Name
- 245
- 1
- 6