Unanswered Questions

125 questions with no upvoted or accepted answers
13
votes
1answer
690 views

How much tension can I expect to get out of a lego chain before it starts to give away?

Assuming I am using the technic chain links to make a chain, how much force can I expect to be able to get out of the chain before it breaks? Suppose I am using a 16t gear to directly drive a 24t ...
10
votes
1answer
593 views

Step 160 on Carousel 10257, white hinges not connecting?

I'm struggling with step 160 where I use white "hinge" connectors to connect the carousel platform sections. It seems to create too much pressure and the platform breaks apart. Grateful for any tips.
9
votes
1answer
272 views

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 ...
8
votes
0answers
99 views

Which is better for youngsters to learn - LEGO Mindstorms for LabVIEW or Scratch?

I have a lot of laptops with the 'old' LabVIEW Mindstorms. I am about to start teaching Lego robotics to a homeschooling group I'm a part of. Here's what I have: a few old Windows laptops with the ...
7
votes
0answers
134 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
1answer
492 views

PC To NXT Brick via Bluetooth

We have a fully-working java program which can connect to another computer and can send messages from this(both sides run java and we used SPP Server and Client), however when trying to connect to the ...
6
votes
0answers
88 views

Oil for old 4.5v electric motor? (UK)

Hi I've just got my old lego technic motor from the 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-...
6
votes
0answers
182 views

Pirates of Barracuda Bay 21322 — are there instructions to build it as a seaworthy ship directly?

Are there official or unofficial instructions to build the ship directly, skipping the island stage? I figured that maybe, just maybe some fans prepared them. The reason is that while it is great for ...
6
votes
0answers
103 views

Recent change in Pearl Gold colour?

I just received a Bricklink delivery with pearl gold pieces (see right-hand side in the image). This colour is less shiny and has less of the pearl effect that I used to expect so far (left-hand side, ...
6
votes
0answers
639 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 ...
6
votes
0answers
218 views

Where does the EV3 software store its crash reports?

I cannot find where the crash reports generated by my EV3 software are stored. I have looked where it tells me to, but I can't find any.
5
votes
0answers
284 views

Is this a fake LEGO torso?

I recently purchased a new 52 Nightwing LEGO minifigure from Bricklink, to replace my damaged one, but I think it may be fake. I compared the two, and I found a few differences, which I have not seen ...
5
votes
0answers
106 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 ...
5
votes
0answers
66 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?
5
votes
0answers
98 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, ...

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