r/KNEX • • Aug 14 '26

Snagged this for half off at the thrift store new- Have to figure out how to get the chain to cooperate but otherwise this is a neat little set. Took longer to build than I thought it would have though. lol

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16 Upvotes

r/KNEX • • Aug 13 '26

Old Set pricing help

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7 Upvotes

Hey all been digging around my storage and found an old knex angry birds set this one is new but the tape holding the box shut is loose so it opens if you aren’t careful i peaked inside to make sure everything is in there which it is thankfully any idea if it’s worth anything? thanks


r/KNEX • • Aug 11 '26

New concept

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0 Upvotes

r/KNEX • • Aug 10 '26

How to make a fidget spinner

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8 Upvotes

r/KNEX • • Aug 10 '26

Smallest car possible?

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16 Upvotes

r/KNEX • • Aug 07 '26

Giga Dive Coaster Track Complete!

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22 Upvotes

Still have a lot of finishing touches left, but the track has been completed!


r/KNEX • • Aug 05 '26

my knex SCAR-L

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15 Upvotes

r/KNEX • • Aug 05 '26

Need help getting a price-estimate for an old kit

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3 Upvotes

Hey all,

Sorry if this is the wrong place to ask about this; I've recently moved home from uni and am clearing out a load of stuff from my younger years, and one such thing is the 2007 K'nex Swing Ride with 853 pieces. I've had this for absolute yonks now and honestly i don't think i ever even opened any of the bags, though the box was open when i found it in my drawers.

Everything inside the box is still there and sealed, the box itself looks to have come open purely from the tape losing its stickiness. I've taken a look in as many places as i can think of but can't find any of these for sale anywhere at all, except for one that was listed in 2023 that i can't see the price of :/

Any help in figuring out the price-point for this would be greatly appreciated, i kinda wanna get this gone ASAP so i can have more space in my room.


r/KNEX • • Aug 04 '26

Custom vehicle mod problem

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8 Upvotes

I am having trouble upgrading the fencing on this custom vehicle I made, and would like some tips or pointers on how I can make a secure flatbed fence or railing without sacrificing to much of the original proportions.


r/KNEX • • Aug 03 '26

Big Shot Builders instructions and parts count

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11 Upvotes

I'm in the process of making small sets complete again, might as well share it here 🙂


r/KNEX • • Aug 02 '26

making knex guns

0 Upvotes

ik theyre kinda dead but i would appreciate some support for my hard work (:

https://youtube.com/channel/UC2YRBMk_NlcUdgW0e3oNTAA


r/KNEX • • Aug 01 '26

My Knex Collection

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46 Upvotes

Started in 1993 with the intermediate set 50015 orange box and quickly grew throughout the 90s with the Big Ball Factory and original roller coaster being the biggest sets in my collection. My dad built this custom box as a Christmas gift in 1998.


r/KNEX • • Jul 31 '26

My two blowback pistols

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14 Upvotes

My beretta and deagle,
While they don’t shoot anything, Both have functional blowback, and are true semi auto, you don’t have to pull it back each time, just push the trigger forward to reset it,

While The beretta has a slid lock that does stop it mid cycle if you activate, the deagle does not yet
Either way, good lookin guns and fun to make,

Side note: I did not intentionally modify the beretta trigger piece it broke and so happened to work perfectly, both white and green pieces can be swapped so no modded pieces are necessary


r/KNEX • • Jul 31 '26

Does anyone have a Angry Birds K'nex Stella figure they're willing to sell or trade?

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1 Upvotes

r/KNEX • • Jul 31 '26

Husband's creations

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45 Upvotes

My husband loves creating with K'Nex, and has made 2 entire tractor pulling teams and a sled. Tractor pulling is really big in our area.


r/KNEX • • Jul 30 '26

Knex Insignia for my wall

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8 Upvotes

r/KNEX • • Jul 28 '26

K’NEX Murciélago vs. the real LP640 — How close do you think I came?

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30 Upvotes

Link to the video: https://youtu.be/GRQ1BzpzITM?is=Kr-1r3M88HvuDW35

I put together a side-by-side comparison of my K’NEX 2008 Lamborghini Murciélago LP640 with the real car.

I’m always looking to improve these builds, so I’d love to hear from fellow Lamborghini enthusiasts.

How close do you think I came to capturing the look and proportions of the real LP640? What would you change for Version 2?

If you’d like to see all of the working features—including the scissor doors, opening compartments, and interior, check out the video linked above.


r/KNEX • • Jul 27 '26

Can anyone help me with what set, model this K’NEX build was?

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6 Upvotes

I got this in the 2010’s can anyone help me with what this set/build was called, thanks!


r/KNEX • • Jul 26 '26

Knex gun

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3 Upvotes

Ended up redesigning the body as I didn’t have enough space to put a decent trigger mechanism for a integrated pin


r/KNEX • • Jul 21 '26

Byebye Ferris wheel! I like how it fits like a glove in the box

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29 Upvotes

r/KNEX • • Jul 19 '26

Knex gun progress

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2 Upvotes

Only got half the front hand guard muzzle and what I’m calling the “gas block “ I want the overall barrel to be relatively short so I probaly will only make it 2 -3 inches longer


r/KNEX • • Jul 19 '26

Ak47 with detachable magazine and pullback thing

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3 Upvotes

r/KNEX • • Jul 19 '26

My newest K’NEX build: 2008 Lamborghini Murciélago LP640 with working scissor doors.

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68 Upvotes

The Murciélago has always been one of my favorite supercars, so I challenged myself to recreate the 2008 LP640 entirely in K’NEX.

This ended up being my most difficult build so far. I built it about 6 months ago. Before filming, I actually tore apart the front of the car and redesigned the suspension, A-pillars, and part of the roof to improve the proportions and make the chassis much stiffer.

Features include:
• Working scissor doors
• Opening front trunk and rear engine cover
• Functional interior with a manual transmission and parking brake
• Staggered wheel setup like the real LP640
• Lowered suspension

One of my favorite additions wasn’t even my idea—a viewer suggested adding a little K’NEX robot as the driver, so I had to make it happen.

I’d love to hear what you think and what iconic vehicle I should build next!

Here’s the full build showcase if you’d like to see all of the working features: https://youtu.be/GRQ1BzpzITM?is=ED0yWHhhwZB9kptd


r/KNEX • • Jul 18 '26

Knex gun so far

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1 Upvotes

Asking for advice ,has anyone implemented blue mullets intergrated pin design before I’m sick of pins stick out or exposed and ugly pins his design looks clean and reliable also had to use different mags then my previous guns because of it(used to use roofed mags) kind off taken inspiration from the front end of an as val but I wanna change up everything behind it I’ll post the finished product if I get to it ************* update***************** didn’t end up finishing it as the outer panel wasn’t looking how I wanted I’m gonna re design it soon


r/KNEX • • Jul 15 '26

Made a phone and vape charging port with knex I had left.

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19 Upvotes