Parametric Building Block

A playful, fully customizable construction brick! 🎮 

Balls (studs) snap into round sockets, so the pieces lock together and you can keep building. 

The best part: you design your own brick. ✨ Just type a simple text grid in the Customizer  ⚠️⚠️⚠️ no CAD skills needed ⚠️⚠️⚠️.

A few layouts come ready to use as a starting point, but the whole idea is to make it yours: strips, squares, crosses, L-shapes, frames... let your imagination run! 🚀

🛠️ Make your own brick

Each piece is a grid of square cells. In every cell you choose what goes there: a ball ⚪, a socket (hole) ⭕, plain flat plate ⬜, or nothing at all to carve out the outline. Mix them however you like and the brick takes shape instantly.

⚙️ Customizer — only two things to set

🧱 Layout — a little text grid that describes your brick:

• , separates columns (left–right) ↔️
• ; separates rows (front–back) ↕️
• Shorter rows are centered automatically 🎯

🎚️ Tolerance (the fit): this is the magic knob for a good snap. It sets how much the ball is oversized compared to its socket, in millimeters. 

A bigger value = tighter, firmer click 💪; a smaller value = looser, easier to pull apart. Every printer is a little different, so if your first pieces are too loose or too stiff, just nudge this number. 👉 The fastest way to dial it in is to print one ball and one socket and test the click before making big pieces.

🌟 Example 🌟

The grid 1;2,1,2;1 builds a cross ➕:

• 1,0,2 — short strip: one ball, one flat, one socket
• 1,1;2,2 — 2×2: two balls in front, two sockets behind
• x,1,x;2,1,2;x,1,x — the same cross, written out in full
• 1,0,1;0,0,0;1,0,1 — square plate with balls in the corners