Stack & Snap Blocks for Kids – Modular Toy Building Bricks

Hello everyone! This is Blaerov.

I wanted to make something simple: a set of blocks that is easy to print, uses as few supports as possible, and can be printed almost endlessly so you can build it as big as you want.

These are modular toy blocks made for hours of fun. Print a few, print a lot, mix colors, stack them, connect them, and keep expanding the set.

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About the size

The blocks were designed at 40 mm, but in the included 3MF file they are scaled down to 30 mm.

I honestly recommend printing them at the 30 mm scale, because it gives the blocks a very comfortable size to handle, build with, and print in larger quantities.

How they work

The cylindrical connectors are designed to insert into the blocks. Inside the blocks, there are small guide rails that help keep the cylinders in place and prevent them from sliding out too easily.

The result is a simple but satisfying building system with that nice toy-like feeling when the parts connect.

20260516_152026.webp Why you’ll enjoy them

Easy to print. Minimal supports. Modular and expandable. Comfortable 30 mm scale in the 3MF. Print as many as you want. Great for colorful builds. Fun, simple, and addictive. Print them in different colors, make huge builds, experiment with shapes, and please show me your photos.

I love you all. Bye!