find edges

FindEdges.lua

local function FindEdges(Object, Directional)
    local _CF = Object.CFrame
    local Size = Object.Size
    
    local function UpdateCFrame(CF, direction)
        local Directions = {
            ["Top"] = CF + CF.UpVector * (Size.Y/2),
            ["Bottom"] = CF + CF.UpVector * -(Size.Y/2),
            ["Left"] = CF + CF.RightVector * -(Size.X/2),
            ["Right"] = CF + CF.RightVector * (Size.X/2),
            ["Front"] = CF + CF.LookVector * (Size.Z/2),
            ["Back"] = CF + CF.LookVector * -(Size.Z/2)
        }
        
        return Directions[direction]
    end
    
    local Directional = string.split(Directional, " ")
    
    for i = 1,3 do
        _CF = UpdateCFrame(_CF, Directional[i])
    end
    
    return _CF
end

local function VisualEdge(Edge)
    local Cube = Instance.new("Part")
    
    Cube.Size = Vector3.one
    Cube.CFrame = Edge
    Cube.Material = Enum.Material.Neon
    Cube.Color = Color3.fromRGB(255, 0, 0)
    Cube.CanQuery = false
    Cube.Anchored = true
    
    Cube.Parent = workspace
end

VisualEdge(FindEdges(workspace.Egder, "Top Front Left"))