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i cant find that and i need help :((

mảnh cần tìm là cái được khoanh đỏ như trong hình.mong được các bạn giúp đỡ tìm và nơi mua chúng

Hi Quân, and welcome to Bricks.SE! Please note that Bricks.SE is an English-exclusive site, can you edit your question with a translation? It does not need to be perfect, we'll gladly polish it if needed - but it needs to be in English at the first place.

That is Wedge, Plate 2 x 2 Pentagonal with Center Stud and 1 x 1/2 Raised Tab on Top (27928).

However, BrickLink does not show that it has been released in that color. From the little bit of the image shown I guess that it is from a render instead of a physical model and that the designer chose a part and color combination that might not exist.

I've spent a lot of time looking for it and I'm lucky to have your help, thank you very much

@Quân, please check out the [help] page, specifically the following article: What should I do when someone answers my question?.


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Is it possible to angle the wheels on Speed Champions?
I have got quite a few Speed Champions sets and I like building MOCs to photograph them in. However, I feel like the photos would look more dynamic if I could angle the front wheels, to look like some steering lock has been applied.
These sets mostly use a Technic 1L axle pin, but can you get an angled equivalent? Even if it doesn’t allow for the wheel to rotate.

I haven't tried this, but you could potentially replace the axle pin with a technic half pin and some thick wire (~3.18mm ⌀) bent into the right shape. This may allow the wheels to rotate still

For your photography use case, it may not be necessary to attach the wheels. Simply remove the Technic pin and position the wheel as desired. Here's a quick example:

I have tried that, but struggled to get the wheel looking centred in the wheel arch, so was hoping for a better solution.

@LC1983 In order to keep the wheel in the correct position in relation to the wheel arch you would need a pivot point that is directly underneath the center of the arch and just about in between the (visible part) of the arched piece and the 2 curved slopes on the inside of the arch. That is INSIDE the actual hub of the wheel itself. There is simply no room for any Lego piece to go there. The geometry of small Lego wheels is not quite the same as that on real cars. Bigger Lego wheels (and suspension parts) do better in that regard.

source: Stack Exchange

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/

sort: votes


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How to fix this Error in EV3 Classroom?
So I got the error "Heads up! Couldn't open this project" and did research and found out that it is a generic error, then looked up the exact error on this site: https://legoapptools.azurewebsites.net it showed me this error:
#WARNLONESTK1 Lonely stack ev3move_rotation-wheel()
#WARNLONESTK1 Lonely stack procedures_call()
#WARNLONESTK1 Lonely stack ev3sound_playSoundUntilDone()

I understand that the problem is that I have Blocks floating in my project, but I don't know how to fix it. Here is a link to the project file: https://www.dropbox.com/scl/fi/aqsg90fv7mptqmi1o5zhc/WRO2024-1.lmsp?rlkey=nd6j1b8dlcrt45iadyqy5ri2d&dl=0

The Lonely stack is not an error. This particular file contains a null value in a list which isn't valid. I updated my answer at https://bricks.stackexchange.com/a/16945/3498 to describe how to fix this.

Here is a link to the repaired file WRO2024 1 - fixed.lmsp.

@DavidLechner thank you very much I saw you're answer to the other post but I couldn’t solve it on my own. You are a life saver! I hope they will add an easier solution to this. Greetings Jonathan

all_licenses: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/


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Should there be a LEGO logo inside SW Clone Trooper helmet?
Should the Clone Trooper (sw0541) helmet  have any LEGO markings inside proving its authenticity?
I have one without any marking inside. Is it original or not?

Normally, both the logo and part number are on the inside of helmets. I don't have that specific one to check where it is. Typically either inside the stud recess, or on the ring around the stud recess. They're often hard to discern, but some direct light shone into the helmet can help.


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LEGO monorail train can't climb slope
Just reopened the monorail set for my son to play with. Motor still works but it grinds and can't cope with pushing up the incline to the upper level on either slope.
Looks very slightly worn but nothing big. Any ideas?

Hi Sarah and welcome to Bricks.SE! By "grinds" do you mean the motor, its shaft and the attached gear are all turning, but the gear slips on the rail, or that the motor is struggling to get the shaft and the gear to turn? Can you please edit your question to incorporate this information? Meanwhile, take a look at the [tour] and the [help] pages to learn more about the community here and how things work on this site. Play well!


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How to troubleshoot an inert Power Functions Servo motor?
I tried to test a PF servo motor before building it into something larger to see if it works - it seems it does not. When connecting it to a 59510c01 9V PF Battery Box and toggling the switch of the box, the motor does not move at all but emits a faint beeping sound (about two beeps per second). The axle of the servo motor can be turned manually, so the gears are not jammed or broken in an obvious way. When I do so, the LED on the PF battery box lights up - indicating that the current generated by the motor can travel back via the PF wire, so a wire breakage seems improbable.
When testing with a more elaborate setup, using the PF IR remote, the PF IR receiver, and the PF battery box from a 42065 RC Tracked Racer, the beeping starts as soon as the battery box is switched on. Then sending a signal (it does not matter which direction or which channel: even the unconnected channel gives the exact same result) from the IR remote stops the beeping but refuses to turn the axle of the servo.
At this point, I see several possibilities:

I could contact LEGO (as I bought the PF servo directly from them and haven't used it since), but seeing that it is a retired product, I doubt they could support or replace it. Or could they?

I could try to open up the servo to see if anything is broken or stuck inside, but that seems to have a slim chance of success (if something is broken, I doubt I could replace it if it involves more than soldering or gluing a piece) and I still could not close up the enclosure properly. Or could I?

I could try to get another PF servo motor for over 60€ - but at that price, it is not a purchase I would like to make without excluding other options. Or is it the only sensible solution?

I could get a knock-off PF servo motor for 15€, which is 15€ more than I prefer to give to IP thieves. Or are there no other options?

Has anyone had experience with one or more of the above options and could offer me guidance on what to try next?

There is a way to check which elements are available for replacement. Unfortunately, LEGO no longer has PF servo in stock. Do you have rechargeable PF battery box to test with? It has speed regulator, which acts as angle of rotation for servo, if I remember correctly.

@Alex sadly no, I only have a few toggle switch battery boxes.

When you you power your servo it should auto-center. If it doesn't do that - maybe it doesn't know the position? I found some suggestions that it could be caused by dirty contacts or other contact related issue. There seems to be at least two versions of contact implementation, where one has gaps and the other doesn't. Might consider checking this video and EB post if cleaning contacts make any difference.

@Alex Thanks for the suggestion! My servo does not move at all, but is stuck in the factory standard center position unless an external force (i.e. my hand via an axle) turns it. The first video you linked gave me the idea to try and disassemble it (point 2 in the question), but seeing that it is a brand new (that is, unused, although bought 6 years ago) motor, I figured I should really attempt other, less destructive options first.


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Please help me identify this set
I've got sealed bag №1. Please help me identify this set.

Oh, Man! I spent my whole day trying to identify this damn sealed bag! The set is 76023: The Tumbler


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Help identifying this blue part

I have scanned through Bricklink and I cannot find this part. I can not determine what to even call it. It has LEGO on the stud tops. I am assuming it's from a old set that has been discontinued. Any help will be highly appreciated.

 I used Google Images to identify it.

Please add a link to the relevant bricklink page

Thank you so much !!     I thought of Google image search at one point but then forgot about it.