r/LegoMechs 1d ago

News September 2026 Mech Build Challenge | “Tiny Mech”

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28 Upvotes

Let's try once more with another build challenge in r/LegoMechs! I am still looking for what might interest you, as this subreddit is nicely active, and I think I might have found a great theme!

The theme for September is:

“Tiny Mech”

Yes, we're going into the mini/microscale with this one!

Rules: * Your mech can use a maximum of 35 pieces (fewer is fine) * The build can be made in Bricklink Studio * It doesn't have to be an original build you made for this challenge - if your older MOC fits, post it * You can post as many as 3 entries * You should include a picture of all the pieces you used so that we can check you didn't break the rules

You have until Monday, September 21st to post your entries with the "Build Challenge Entry" post flair.

A poll will be posted at the end of the challenge so that you can decide what the best build was.

The winner will get a unique User Flair they will be able to show off on r/LegoMechs, and their creation will be spotlighted on our Instagram.

I also need to thank u/that-bro-dad for providing the cover image - you should all check out his miniature building bricks game called Brassbound. It's a lot of fun!

Let's see your tiny mechs!


r/LegoMechs 5d ago

🏆 Weekly Community Spotlight Gatomatic

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284 Upvotes

Alright so it kinda took me a while to complete this one. The one with Dreamzzz face plate was the first version made with parts I had at hand. The second version was revised to be sturdier and used as a base body with instructions. It doesn't use a lot of rare pieces and it's a simple build. I uploaded free instructions on my Rebrickable. https://rebrickable.com/mocs/MOC-274825/Steamlined/gatomatic/#details


r/LegoMechs 10h ago

MOC Lego Ideas: Classic Trio to Titan: S-Core Mech Creator

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497 Upvotes

Hi there! This is Phiphibrick, a minifig and mech creator on Instagram. I wanted to share my new LEGO Ideas submission with you all: a 2-in-1 mech set that can be built into either three chibi mechs paying tribute to classic LEGO themes, or rebuilt into a single standard-scale mech! Both configurations can be stripped of their armor down to their bare frames, making it super easy for builders to customize their own styles. My hope with this project is to help more people experience the pure joy of designing custom mechs!

👉 Link to LEGO Ideas Project

A few months ago, I designed the "S-Core" mech frame. It features natural, human-like proportions, intricate mechanical details, high articulation, and plenty of connection points for customization.

Ever since developing the S-Core, building mechs has become incredibly easy and efficient for me. Just by tweaking the outer armor and accessories, I can create completely different styles in no time. While I’ve always shared the free building instructions, I still get messages every week asking if they can buy physical kits directly.

To make this frame easily accessible to builders worldwide, I have officially submitted the project to LEGO Ideas!

This project is a 2-in-1 modular creator set:

  • Model A (The Classic Trio): Three chibi mechs paying tribute to iconic LEGO themes—Space, Castle, and Pirates.
  • Model B (Titan Knight & Cyber Pup): Rebuild all three into the highly requested standard-scale mech, accompanied by a dynamic, poseable cyber pup.

Core Feature: Every single mech can be stripped down to its bare S-Core inner frame, giving you the perfect canvas to customize and build whatever you imagine.

We need 10,000 votes on LEGO Ideas for this project to be reviewed and potentially turned into a real, official LEGO set!

👉 Link to LEGO Ideas Project

Voting is completely free and only takes a minute. Please consider supporting and sharing this with fellow mech and LEGO enthusiasts. Thank you so much for all your support! :)


r/LegoMechs 8h ago

MOC All the best mechs come with display stands

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77 Upvotes

Made some modifications to my red/black mech and made a custom stand for display! We're going a bit more offensive this time around, ditching the handheld shield for massive missile launcher! Please let me know what you think + anything you think I should add! (Also Ravioli was "helping" with the photography :3)


r/LegoMechs 44m ago

Build Challenge Entry Little Ben

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Upvotes

Be a good chap and call in a clocker to tell us what time it is.
- Lord Brendon Humming

During the development of the Tonkerton its designer, Lord B. Humming, decided that it was time to replace the pocket watch with something more appropriate to this age of mechanical suits. He devised plan of a walking suit with the finest time piece affixed to its torso. His idea being that when you needed to know the time, you simply beckoned one of its riders, known as 'clockers', to ride over to you so you could see the time. This design became known as 'Little Ben' by the public, much to Lord Hummings displeasure, as he would often remark that his design "was not a bell".

31 Pieces + Minifig + Hat


r/LegoMechs 7h ago

MOC Anubis inspired bounty hunter mech and his partner

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30 Upvotes

Uses another mech as a base forgot where I found the inspiration but hope you guys enjoy
The mech is called anub15 don’t have a clever name for the pilot yet made this guy a while ago hence the dust but didn’t know about this sub all those years ago


r/LegoMechs 51m ago

MOC New ‘mech in the works

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Upvotes

Following the successful introduction of their totem omnimech, Clan Blood Eagle has won a trial of possession to gain the technical blueprints and rights to produce another clan omnimech.

Work has started on the lower portion of the center torso, and the beginnings of the hip assembly.
Any guesses as to which omnimech they have obtained?

The decision has not yet been made as to whether this is built in the prime configuration, of a clan specific refit.

Seyla


r/LegoMechs 6h ago

Build Challenge Entry My Son’s “Homer Mech” submission for the Tiny Mech challenge

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13 Upvotes

Made entirely with pieces on his bedside table 🙄


r/LegoMechs 7h ago

MOC Little guy

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10 Upvotes

r/LegoMechs 20h ago

Build Challenge Entry Atlantean Mecha Warrior

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78 Upvotes

Designed for u/that-bro-dad's game Brassbound, this little guy sits exactly at the build challenge's limit of 35 parts. (Gif has a different sword because I had to change the sword when making it irl)


r/LegoMechs 1d ago

MOC CF-005 Vesta

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74 Upvotes

r/LegoMechs 1d ago

MOC RAB Vs HMARS

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16 Upvotes

PerTech's: R.A.B. (Rapid Assault Bunny); Despite taking the form of a bunny, it's far from it. This rabbit is equipped with the latest PerTech has to offer. An energy rail cannon with discharging energy cells. Capable of searing through any material. originally designed for industrial uses, now sees use the coming conflicts ahead.

Wojtek Industry's: HMARS (High Mobility Artillery Recon Suit); Nicknamed "Mars" by pilots. This unit is extremely deft, even for being the size of a sky scraper. It can be equipped with an assortment of weapons, the main one is a 120 mm bolt action anti material rifle. Choosing to forego the scope for drones and satellite tracking for making shots. Without support, they are just as deadly with complex sensors all around it's frame. These quick footed marksmyn dominate most of the world, but not for long.

i made a post a while back, it was just robots at the end of the day. granted, micro mechs, but still robots.

today that ends, i will only makes true mechs!

(th...the frogs are people btw, well sorta :p)

(feel free to use any of these ideas <3)


r/LegoMechs 1d ago

MOC My latest build

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36 Upvotes

Built with only one set: 31379


r/LegoMechs 1d ago

MOC BH-20 “Ajd”

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35 Upvotes

r/LegoMechs 2d ago

MOC Imugi poses ( Shotgun / Pile drivers ver. )

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254 Upvotes

Probably posted way too much pics but come on they look so cool 🥹

Hope you like it and check my insta if you want ( totally not forced… DO IT )

https://www.instagram.com/p/DcrN2CJDapb/?igsi=MXE0bmg2Y3E0dTdiMw==


r/LegoMechs 2d ago

MOC TR01 "Omnipresence"

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227 Upvotes

This is my first mech in bigger scale, and I wanted to make him as agile and posable as I could.

Unfortunately, I did poor job capturing jet backpack on camera, but he does indeed have deployable posable engines and wings.

There's an absurd amount of mixel joints in the upper torso, allowing his shoulder assemblies to move up-down and back-forward.

But I think the most complex part is still his feet, having coupled sets of friction joints to hold the weight - surprisingly, they're even stiffer than the waist with coupled balljoints - and integrated rubber parts to prevent sliding.

I like how you can tell that set 31152 was heavily used in the process.


r/LegoMechs 2d ago

MOC Tribute to Peter Cullen

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52 Upvotes

r/LegoMechs 2d ago

MOC Heroes and Villains of 'The Astro-Kids' holoshow

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72 Upvotes

This is a series of MOCs I've been making this year, that I imagine as the heroes and villains of a popular serial adventure holoshow on Planet Robotica called 'The Astro-Kids' and it's spin-off 'Astro University'.

They're built in a sort of "action figure" scale between about 5" and 16" tall--my attempt at making robot characters who feel a bit like "real" toys based on a Saturday morning cartoon. As a rule, they all have to have rocketpacks so they can fly through space.

If you dig them, check out all my robots here: http://planetrobotica.com


r/LegoMechs 2d ago

MOC PBH-24 "Perun"

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18 Upvotes

r/LegoMechs 3d ago

MOC GIS-19 "Mora"

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56 Upvotes

r/LegoMechs 2d ago

MOC Meet Collateral

6 Upvotes

Coming from the city of Wichita the round wrecker the four armed fighter the yellow and grey Collateral
(Any questions or thoughts)


r/LegoMechs 3d ago

MOC cactus-cat-mech & his fat chopper

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227 Upvotes

Hope y'all enjoy the results of my last building-binge.:D


r/LegoMechs 3d ago

MOC Suggestions to improve these bases? They're meant to be snow

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23 Upvotes

r/LegoMechs 3d ago

MOC Zane mech moc

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17 Upvotes

r/LegoMechs 3d ago

MOC Off-brand Mech revamped

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35 Upvotes

I wanted to use only its own parts but had to add mine in the end.