K'NEX construction toy

🔩 K'NEX construction toy 🧱

What is K'NEX?

K'NEX is a construction toy system made up of interlocking plastic rods, connectors, and other components that can be snapped together to build models ranging from simple geometric shapes to complex machines. It's popular among kids, educators, hobbyists, and even engineers because it combines creativity with hands-on learning, particularly in the areas of STEM (Science, Technology, Engineering, and Math).

New Joint Connector!

This piece took some time to dial in but I think I managed to make it work! I recommend to lightly sand the ‘ball’ where it touched the buildplate. This way it will be able to rotate more freely. Don't overdo the sanding, it might make the ‘ball’ too loose.

 You can now find the newly added joint in the ‘Connector - Joint F and M' profile!

NOTE!

Please be aware of the following when printing the rods:

• Rods print better (true to model dimensions) when printed upright along the Z-axis
  • No supports needed when printing in the Z-axis
  • Better quality when “Variable layer height” is set to “Smooth”
  • Rods printed along the Z-axis have a longer printing time!
  • Due to the layer lines being perpendicular to the lenght of the rod it might break easier when forces are applied along the rod*
• I have included 2 rod plates with an upright and lying down model for you to test print quality and time
• Longer rods (55.0 mm and higher) have been placed on the plate in a specific way to minimize support use and print time
  • You are free to experiment with printing these rods along the Z-axis
• An adjusted print profile has been uploaded. This profile has a larger contact area with the bed and a slightly different orientation.

* I have not experienced any z-axis printed rods breaking yet.

Modeled/Original	Specifications	Materials tested
	Connector, single	PLA, PETG
	Connector, double, rectangle	PETG
	Connector, double, arrowhead	PETG
	Connector, triple, arrowhead	PETG
	Connector, quadruple	PETG
	Connector, quintuple	PETG
	Connector, octuple	PETG
	Connector, septuple, slotted	PETG
	Connector, quadruple, slotted	PETG
	Connector, Double, Short	PETG
	Connector & Rod	PLA, PETG
	Connector & Rod	PETG
	Connector, Joint	PLA
	Rod, L: 17.2 mm	PLA, PETG
	Rod, L: 33.0 mm	PLA, PETG
	Rod, L: 55.0 mm	PETG
	Rod, L: 86.0 mm	PETG
	Rod, L: 130.0 mm	PETG
	Rod, L: 192.6 mm	PETG
	Rod(s), Corner, Flat, 4 Way 33.0 mm	PLA
	Plate(s), L: 55.0 mm, Pattern	PETG, PLA
	Plate(s), L: 86.0 mm, Slotted	PLA

Also check out…

My K'NEX gears models that I've uploaded on MakerWorld a while back!

General notes & updates 📬

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🖊 Feedback 🖊

Please let me know:

• If your chosen piece printed well
• You would like a certain piece included
• What slicing parameters worked best for you
• What material printed best for you

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Disclaimer!

I do not own any rights to K'NEX or any of the official K'NEX designs. K'NEX is a registered trademark of its respective owners. I am not affiliated with, endorsed by, or sponsored by the makers of K'NEX in any way.

Any models or content I create using K'NEX pieces are for personal, non-commercial purposes only. I am not making any money from these creations and do not claim any ownership over the K'NEX brand or its intellectual property.