# All Questions

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### How can I make a LEGO heroica scale fountain of youth using bricks from Fortaan or Waldurk?

I have started collecting heroica and I thought "wouldn't a fountain of youth be superb!" but I only have Fortaan and Waldurk... any ideas?
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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?
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### Is it unethical to distribute 3D models of Lego bricks?

So say that I use LeoCAD to export some brick models to Blender. Would it be unethical to modify the models in various ways (tris to quads tool, subsurfacing, textures, rigging, etc.) and then ...
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### Are LEGO bricks recyclable?

Yes, I know that it is kind of a dumb question, as no one would want to dispose of LEGO bricks. But it's a curiosity thing: are Lego bricks recyclable?
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### How accurate is the ultrasound sensor when moving?

Can I use an ultrasound sensor while the Robot is moving, or will it give bad data?
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### NXT motor power accuracy

When turning the motors, how precise is the speed parameter? I am programming in the NXC language (standard firmware) and wishing to know how many decimal points will be taken, if any, and whether the ...
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### Where and when did the straight block letter LEGO logo appear on brick studs?

The LEGO logo that appears on the tops of brick studs has had several styles over the years. In the US, when Samsonite began manufacturing LEGO bricks, they apparently made some alterations to some of ...
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### Is it possible to build Lego bricks with a makerbot replicator 3D print?

Is it possible for plates, tiles or small pieces ? Is it possible to use MLCAD with a Makerbot replicator?
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I want to motorize my Santa Fe Super Chief. Its original instruction mentions 5300 but it's marked obsolete on BS.com and now re-released as 10153. In the same time 88002 costs few times less, e.g. $... 2answers 528 views ### What is the most compact way to make a flat six pointed star in LEGO? I spend a lot of time building in Micro scale (I maintain the Micropolis collaboration standard) and my partner is trying to figure out how to build the most compact, or smallest, six pointed star ... 1answer 666 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? 1answer 1k views ### What is the name of the Technic pieces that snap together to make a track? We have these little black Technic pieces that connect together; they make a track that fits over the gears (sort of like wheeled-belt-track on excavators or tank track). Can you tell me the name of ... 3answers 2k views ### 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? 3answers 10k views ### Looking for a site with custom instructions I'm looking for a website that has some cool custom model instructions. I have a LEGO store near me and I'm able to buy pieces individually. I'm looking for more of a sci-fi ship kind of instructions. ... 1answer 5k views ### What sites are available to sell original boxes? A couple of years ago, I stumbled across a site (not Ebay) where LEGO fans buy and sell items. I have some large boxes for various sets to sell. All my son's LEGO collection is in plastic boxes, and ... 1answer 191 views ### Do LDraw files describe models, bricks, or both? Sorry if this is kind of a dumb question, but do LDraw files describe models (with translation and rotation values with references to bricks contained in other files), or do they describe the bricks ... 1answer 453 views ### Is it possible to display large text on an NXT using LabVIEW? In RoboLab and using RobotC, it's possible to write LARGE text to the screen of the NXT. In RoboLab, this can be done by just typing [\big] at the beginning of a string constant which is wired into a ... 2answers 281 views ### What are the new elements released via the LEGO Friends sets? What new elements did the release of the Friends sets add to the LEGO element parts palette? 1answer 2k views ### 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 ... 4answers 689 views ### Are these trees LEGO parts? I've come across some trees from some bulk purchases I've made, and I can not determine if these are LEGO or "compatible" parts. Any ideas? The tree on the left is an official tree but the one in the ... 3answers 3k views ### What was wrong with monorails? From this answer: Then there's the whole problem of parts which are simply not in production any longer, and for which the cost of reproducing them would offset the potential benefits of reissuing ... 1answer 1k views ### Why doesn't LEGO bring back old series as they were “in the day” As many of you probably can tell, LEGO has been rehashing old series and giving them a new twist (eg. Rock Raiders -> Power Miners, or whatever its called). Why doesn't LEGO actually make some of ... 3answers 12k views ### What is the average price per piece? Some LEGO pieces are probably more expensive than others, but what is the average price per piece of LEGO pieces, when sold as part of a kit? Is there any place containing statistics or graphs about ... 4answers 4k views ### Can I control 2 NXT bricks from a computer using bluetooth at the same time? I am thinking about starting a project involving controlling the movement of a mindstorms robot depending on some input from a Kinect device; however the robot will require at least 6 motors. I have ... 1answer 303 views ### What part is this grey keyhole shape and what set(s) is it from? I've recently found this grey keyhole-shaped piece - there are a fair number of them that stack together to form a circular staircase. There is what looks like a part number on the bottom but it is ... 3answers 236 views ### How should I remove a Hinge Tile, especially in the middle of a plate? I've recently had some trouble removing a 1x4 hinge tile from the middle of a plate: Even when they are on the edge of the plate there isn't a lot of areas you can use to gain the traction to ... 0answers 56 views ### Can you use four movement bricks on one NXT? [duplicate] Possible Duplicate: How can I use more than three motors with one NXT brick? I want to make a tank out but it needs 4 movement bricks but I only have one NXT. Here are the parts: It can move ... 2answers 440 views ### How versatile are the parts in a lego pirate ship set? I am looking at buying one of the pirate ship sets, such as 6285-1: Black Seas Barracuda, however, I am concerned the parts in the set are too specialized, and could not be easily adapted to make ... 2answers 905 views ### Why are they called “minifigs”? Were larger-scale LEGO figures the standard at some point in the past? It just seems odd to me that they're called "mini" when they're basically the only kind of LEGO figures available (not counting ... 1answer 1k views ### 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 ... 4answers 42k views ### Is it possible to buy a bulk of 1000s of basic bricks (mostly 2x4)? Several years ago I remember being able to walk into toy shops and actually shovel lego bricks into a bag and thus buy them in bulk. Unfortunately I can't seem to find stores anymore that offer this ... 4answers 2k views ### How should I go about selling$3k worth of unsorted LEGO sets?

Here is my problem. Over the years my son had me buy a large number of Star Wars sets (including 10179, 10188, 6211, 7676, 7675) and he built them. Then he traded (or lost) most of the mini-figs ...
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### Which Duplo bricks have practical uses in System building?

Traditional 2x4 and 2x2 Duplo bricks can be used to bulk out models and provide a structural support for landscapes, but have there been any other uses for Duplo bricks of all shapes and sizes in ...
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### Old - New grey. Why? [duplicate]

Possible Duplicate: What is the bley (blay) color? In 2003/4 LEGO changed the hue of both greys (light and dark) The newer tones are blue-er. (The new is often referred to as bley (bl ue - gr ...
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### How many degrees can you flex an arm of a lego minifig?

How flexible are the arms of Lego minifigs?
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### Are there plans to release new trains for AFOL?

I just built the Maersk train, what an amazing model! I did a little research and found that it was released in 2011 and the Emerald Night was released in 2009. Given the two year gap it seems ...
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### How to fix my XL motor?

I used the XL motor near water. Now it stopped working. Can someone tell me what I can do to fix it?
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### How to find out if an element is out of production

Is there a way to know if Lego has officially stopped making a certain Lego element? As an example, from the 580 Lego set, I haven't seen this conveyor belt (along with those wheels and the "Legoland"...
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### How can I build a LEGO heart?

In the spirit of Valentine's Day... How can I build a two-dimensional LEGO heart? Here is an example of the shape I'm looking for. Perhaps the model should be built from the bottom upward? I would ...
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### What is the name of this Lego Blacktron anime/cartoon?

Once upon a time, in a distant past there was a Lego Blacktron series: The Lego Blacktron series has a logo/symbol, it's a yellow triangle with small black triangle inside. Now my question is: ...
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### Adapting charger for NXT 9798 battery

I have an old style 9798 NXT rechargeable battery pack 7.2V 1400MnAh, but no charger. Can I adapt a spare non lego 9v 200mAh charger for this? Or is voltage too high? can anyone read the output ...
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### Is this element some kind of Technic connector?

I am thoroughly confused about an element I have come across: I have never seen a piece quite like this. It's unlike any Technic connector I've seen, so I doubt if that is what it's for. The two ...
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### Is there a site with the (previous) monthly LEGO Store mini-build instructions?

We have been going to the LEGO Store off & on for the monthly mini-build, but haven't been able to make it there for quite a few. I've been searching the web for the instructions for the builds we ...
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### Can the RCX connect to infra-red on a computer?

Can the RCX connect to a laptop with a IR reciver on it? I want to program my RCX on my computer, But i have no db9 (Lego RCX connecter for 1.0 tower) seriel connecter nor a converter.
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### How hard is it to convert the new(ish) RC/PF trains to 9V?

I have a HUGE investment in 9V trains (think many thousands of USD) and was wondering how difficult it is to convert the newer RC/PF train systems over to 9V motors? Do the 9V motors fit? Does the ...
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### Why does my RCX programmable brick have no power socket?

My RCX has no power socket, I don't know why. it seems that all RCX 1.0 over #300000 have no power adapters. My ONLY link is Google pictures. why?
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### Are there any theoretical works about possiblity of self-replication of LEGO systems?

Are there any theoretical works about possiblity of self-replication of LEGO systems? (constraints on the size etc., computer simulations) Here are some relevent links: Bartlab.org: PDF Document ...
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I hope someone can help me with a problem with getting an original RCX 1.0 system working with a current PC. I bought the RCX 1.0 system back in (I think) 2000 but its been in storage a long time. In ...