Questions tagged [compatibility]

Questions about the inter-compatibility of different brick sets, or between bricks and some other objects.

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4
votes
1answer
121 views

Looking for a big set of tires and rims for my monster truck - really beefy tires

I'm looking for big beefy tires and rims for my large Technic monster truck. I also need something for off-roading.
2
votes
1answer
532 views

What is the correct snowspeeder to pair with the AT-AT?

Wanting to replicate the scene from Empire Strikes Back where Luke is flying a snowspeeder on Hoth and harpoons an AT-AT. I have already purchased and built the AT-AT model number 75288 but I'm having ...
5
votes
2answers
109 views

What does 18853 (Friends flower) connect to besides 37695 (Plant stem with 3 leaves) or 11609 (Friends accessories star)?

What does 18853 (Friends flower) connect to besides 37695 (Plant stem with 3 leaves) or 11609 (Friends accessories star)? Is there a good way to attach it to common plant stems (3741) like this one:
5
votes
1answer
104 views

Xbox to Robot Inventor?

Is it possible to connect an Xbox controller directly to the Lego Robot Inventor(51515) intelligent brick?
1
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0answers
81 views

LEGO Movie projector [closed]

A few years ago, I built a movie projector out of LEGO. I posted pictures of it in Wikipedia. In the notes that explain these images, I explain that the width of the film is 31.4 mm. Is it the right ...
4
votes
1answer
205 views

Is there any cross compatibility between 51515 and 31313?

I'm thinking of buying another Mindstorms set, and I already have a 31313. I don't want to spend $370 just to learn they are completely incapable of communicating with each other, so if you could tell ...
7
votes
2answers
403 views

Why are there always holes in Duplo bricks?

For some reason, all the Duplo bricks that exist out there have holes in their studs. I haven't seen a Duplo brick that doesn't have holes in the studs, and I doubt such thing even exists. System ...
2
votes
2answers
2k views

Can Lego Remote Control 88010 control Lego Technic Hub 88012?

I have been exploring the new Bluetooth Technic smart hubs with the Control+ app and PoweredUp app. I would like to also use a physical remote. I have the Technic smart hubs that come with the ...
8
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0answers
160 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, ...
14
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1answer
2k views

Will Duplo trains fit onto a regular 6 stud LEGO track?

There's a thread here establishing that regular LEGO trains arguably fit onto Duplo track, but have trouble with underbelly clearance. What about the opposite? Will a Duplo train fit onto six-stud ...
12
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3answers
1k views

Why doesn’t part 30099 fit into the System?

Part 30099 - Brick Arch 1x5x4 Inverted doesn’t seem to fit into the LEGO system. I cannot find a part that fits on the bottom stud and provides continuity to the concave slope of the arch. A tile is ...
7
votes
1answer
605 views

Will the Duplo train track extension set 10872 work with Duplo train set 2700?

I am thinking about buying the Duplo train expansion set 10872 Train Bridge and Tracks for my niece, but her primary Duplo train set is actually a vintage 1983 2700 Freight Train set from her father's ...
3
votes
1answer
269 views

How can the A and B models of the 42055 Bucket Wheel Excavator be modded to fit together?

The 42055 Bucket Wheel Excavator has a B model, a mobile aggregate grader: which shares the mining theme with the A model and seems to be designed to sort the mixed output of the excavator into ...
7
votes
2answers
800 views

Compatibility between vintage (80s/90s) Technic and current parts (motors etc)

I've recently got my old Technic out for my daughter (who's a little young for her own, but her Friends now drive around in a tank). If I start to acquire more, and more sophisticated, motors and ...
2
votes
2answers
449 views

Technic beam centering for beam with even length

I design stereo camera housing for robotics (3d printing). I want the housing to be able to connect to both LEGO Classic and LEGO Technic blocks. I designed 2 groups of 4x4 holes/pins on the bottom/...
4
votes
1answer
209 views

How to best measure compatibility among Lego and clones?

A top complaint I see about clone brands is the quality: specifically the flimsiness of the plastic, premature discoloration, or poor fitting with either other bricks of the same brand or with Lego. I'...
5
votes
2answers
201 views

Are the different LEGO Xtra play mats designed to be used together?

It appears that the LEGO Xtra play mats come in three different varieties: It is clear that these are physically compatible, but are these intended to be used together, or are the three locales ...
4
votes
1answer
4k views

Is there a way to convert stud.io files into LDD files?

Is there a way to download stud.io files from Bricklink and convert them into a format that Lego Digital Designer understands?
2
votes
0answers
73 views

Makeblock and LEGO PF cable synthesis

My 10yo son and I have ventured into the realm of taking our LEGO hobby up a notch with robotics. We have built the makeblock mbot and adapted LEGO bricks and want to incorporate the Power Functions ...
4
votes
1answer
226 views

Is it possible to build 3 or more concentric circles / nested circles / telescoping pieces?

There are round 2x2 pieces. There are round 4x4 pieces with round 2x2 holes, the 2x2 can slide/rotate inside of it. There are "macaroni" pieces to make an 8x8 circle with a 6x6 hole. But are there no ...
9
votes
3answers
9k views

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 ...
12
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2answers
305 views

Are LEGO Clikits elements compatible with the brick system?

Are LEGO Clikits elements in some way compatible with the LEGO brick system?
6
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1answer
3k views

How to convert LEGO base plate to a DUPLO base plate? [duplicate]

How can I convert a regular LEGO base to a DUPLO base? I have a table that cannot be changed and it has built-in LEGO baseplates, but I need it to be 100% DUPLO compatible. Any LEGO to DUPLO baseplate ...
5
votes
1answer
337 views

Is there a drop-in replacement for 4275 + 4276 hinge?

Both parts are not in production since 2008. Hinges in my sets are in various conditions, some of them are way too loose to my liking. No ones fault, I was active kid who built a lot. But now it's ...
7
votes
1answer
151 views

Can I still motorize Universal Building Set 8034 and other from that time with modern elements?

Set 8034 was supposed to be motorized using 8700. Of course, this is way outdated and kinda pointless to buy motor this old. Current set for this purpose is 8293. Problem is, old motor was 5 studs ...
3
votes
1answer
200 views

Is 32013 a drop-in replacement for 3651?

In my old sets there are many 3651 parts that are broken. As far as I remember, these sets do not use studs on the piece. Per this answer, new piece with the same function is 32013: Can I just buy ...
5
votes
3answers
793 views

Compatibility of maxi sized Mega Bloks

Maxi-size Mega Bloks are larger than Duplo. As far as I can tell they have two times the stud pitch and much larger studs: What, if any, compatibility is there between the maxi-sized Mega Bloks and ...
4
votes
1answer
1k views

Can you interchange System and Technic LEGO?

My grandson would like to motorize his LEGO builds. Does the Technic motor pack only work with Technic LEGO or can he mix it with the regular sets that he already has? What should he start out with?
0
votes
1answer
189 views

Are creative play sets compatible with Duplo?

Are are the blocks in the Creative Play sets compatible with LEGO Duplo blocks? Also, are they the same size as Duplo, or Juniors or in between?
3
votes
1answer
366 views

What kind of track is the Emerald Night set compatible with?

According to What different types of lego train tracks exist?, there have been many different kinds of LEGO track. Which kind of track can I purchase that will be compatible with this train?
4
votes
1answer
960 views

Can the DUPLO My First Number Train fit on DUPLO tracks?

I have the My First Number Train set, pictured here. This set did not come with track. Other sets, such as My First Train set, pictured here, do come with track, but the wheels look different. Can ...
3
votes
2answers
2k views

Are there factories in China that produce raw LEGO-compatible blocks?

Nowadays Chinese are getting really good at making LEGO-compatible blocks. Some sets are really unique and of very good quality. But still - we got our own ideas. I wonder does anyone here know any ...
3
votes
2answers
5k views

Are COGO and LEGO bricks compatible?

Is COGO compatible with LEGO sets, that is can I combine parts from both packages? My kid got a COGO set on his birthday recently, which we did not open because I think we can return and exchange (for ...
8
votes
1answer
415 views

Technic 8858 Rebel Wrecker alternate model impossible to build?

I don't mean "difficult", I mean it appears to have an actually impossible instruction. Or am I missing something obvious? Here's the deal (pardon my lack of standard names for parts): I recently ...
7
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2answers
5k views

Are there bricks sized between LEGO (classic) and DUPLO?

I am wondering whether there is a brick-type construction block toys on the market that would be sized between the LEGO (classic/original) and LEGO DUPLO. More specifically I am looking for a 3/4 ...
14
votes
6answers
69k views

What alternative LEGO-compatible toys are avaliable?

My kids love LEGO toys, but we find them expensive. Often, they get all the sets of a series, but keep asking for something similar. We have thus begun buying Mega Bloks and Kre-O, which include some ...
2
votes
3answers
2k views

Does the Mindstorms EV3 software work on macOS Sierra?

I guess this is a continuation of these two questions: Does the Mindstorms EV3 software run on OS X El Capitan? Is the LEGO Midstorms EV3 software compatible with OS X yosemite? macOS Sierra was ...
8
votes
2answers
750 views

Why are Technic holes slightly smaller than studs?

We know that Lego studs almost never should be placed into Technic holes because studs are slightly larger and will stress the hole. However, why is there this discrepancy? Surely when Lego created ...
4
votes
1answer
497 views

Connecting LEGO WeDo USB hub to portable Power Bank

Is it possible to connect the LEGO usb hub from education WeDo series to a portable power bank for power? WeDo USB Hub Portable Power Bank
5
votes
1answer
244 views

Working with Curved Bricks

I'm hoping to stack curved bricks. There are two slots along the edge to allow the bricks to be set on plates. These become unsightly when the bricks are stacked atop each other. Has anyone seen any ...
0
votes
1answer
74 views

Purchase of large blocks in South Africa

I have thousand's of small-single, two and four blocks but sometimes need to build larger structures and thus, would like to know were in South Africa I can purchase these larger blocks without all ...
4
votes
3answers
735 views

Are Bandai "Figmes" compatible with LEGO?

According to gizmodo Bandai is releasing a new line of "Figmes" that look astounding similar to our beloved minifigs. Here is the set: And here is one close up: Close up the hands look even better, ...
7
votes
1answer
752 views

Are wheels from Duplo numbers' train set 10558 compatible with bridge 3774?

Are the wheels from Duplo set 10558 compatible with the railway bridge set 3774? I have a number of older wheel bases that are too large for the bridge. According to Brickset, the wheels in set 10558 ...
1
vote
1answer
2k views

Can LEGO Duplo and Lego Junior sets compatible? Can the pieces be mixed together from the different sets? [duplicate]

Are LEGO Duplo and Lego Junior sets compatible? Can the pieces be mixed together from the different sets and all be played with together?
3
votes
1answer
593 views

How can I connect CCBS parts to plain LEGO system?

Can anyone explain how the front shoulder was built in this MOC? Are there bricks that allow easy connections between CCBS and plain System?
6
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5answers
4k views

Does the Mindstorms EV3 software run on OS X El Capitan?

El Capitan was released a few days ago, and I want to upgrade. Will there be issues with the software, or will it run nicely on El Capitan? My Mac: Retina MacBook Pro 13", Early 2015
4
votes
2answers
1k views

At what voltage do the c1 and c2 lines run at when controlling a lego servo motor?

related: how to control a servo motor from a raspberry pi The raspberry Pi normally outputs 3.3 V signals from it's pins, however there are logic level converters for interfacing with higher-voltage ...
8
votes
1answer
4k views

Is LEGO Junior compatible with regular LEGO?

Does LEGO Junior fit with regular LEGO? Say for 8-12 year olds? I want to make sure it is not obsolete and can be used as the child grows alongside the LEGO collection.
2
votes
1answer
332 views

Are 10682 "Creative Suitcase" and 10695 "Creative Building Box" compatible?

I just wanted to be sure if these two sets 10682 and 10695 are compatible.
12
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4answers
13k views

Are BanBao bricks compatible with Lego?

Does anyone has experience with BanBao bricks? BanBao World Are they compatible with Lego bricks? They have basic sets and plates which are at a good price.