Coding a Custom Roblox Physics System Script

Getting a custom roblox physics system script to work properly can be a total headache if you don't know exactly where to start, especially when the default engine decides to act a bit wonky. We've all been there—you're trying to build a cool car, a hovering drone, or maybe some weird anti-gravity boots, and suddenly your parts are flying off into the void or jittering like they've had too much caffeine. Roblox's built-in physics engine, powered by Luau and the underlying engine, is actually pretty robust, but sometimes you just need that extra level of control that the standard "drop a part and let it fall" approach doesn't offer. ...

February 12, 2026 · 7 min · Chedikian Dennis