How to build conveyor without BasePart.Velocity which is deprecated?

[5uphi]

you use AssemblyLinearVelocity

https://developer.roblox.com/en-us/api-reference/property/BasePart/AssemblyLinearVelocity

find out more here

[Activated!] New Part Physics API

Today we are releasing some new physics properties and functions for BaseParts! They do require some explanation, so read on! Assemblies First, we’ve added five new properties that further introduce a concept that may be new to some of you: the assembly. In Roblox, an assembly is a set of unanchored parts connected by WeldConstraints, Motor6Ds, or other rigid joints. Internally, these parts form a single rigid body with a velocity, position, and mass. Read more about assemblies here! These p…

and this article has been updated to use the new AssemblyLinearVelocity

Making a Conveyor