Parts & Models

Everything in Roblox is built using BaseParts. Let's learn how to manipulate them efficiently and group them correctly.

---

Spawning Parts

On the Home tab at the top of Studio, click the Part button to drop a new block into the world. You can click the arrow under the button to spawn Spheres, Wedges, and Cylinders instead.

The Move, Scale, and Rotate Tools

Selecting a Part allows you to use the three primary tools (also found on the Home tab):

• Move (Ctrl + 2): Drags the part along the X, Y, or Z axis.
• Scale (Ctrl + 3): Stretches the part's size.
• Rotate (Ctrl + 4): Spins the part on a specific axis.

Anchoring (Critical Concept)

By default, Roblox simulates real-world physics on every part you create. If you spawn a block mid-air and press Play, it will fall to the ground due to gravity.

If you are building a wall, a house, or a floor, you must Anchor it. Select the part and click the Anchor icon on the Home tab. Anchoring completely removes the part from the physics simulation, freezing it in place. Unanchored parts cause massive lag if you have thousands of them. Always anchor buildings!

Grouping into Models

If you build a car out of 50 different parts, selecting and moving them one by one is a nightmare. Instead, select all 50 parts (click and drag a box, or hold Shift in the Explorer) and press Ctrl + G.

This groups the parts into a Model. A Model acts as a container, allowing you to move, rotate, and scale the entire group of parts as if they were a single object.