How do I make a group of brick spin around the hinge?

local hinge = script.Parent.Hinge == (one brick)

local Model = script.Parent.B1 == (two bricks)

local hingePos = hinge.Position

for i = 1, 360 do

Model:SetPrimaryPartCFrame(CFrame.new(hingePos) * CFrame.Angles(0, math.rad(i), 0) * CFrame.new(1,0,0) )

wait()

end

I'm trying to make the model spin around the hinge.

for some reason this script doesn't show any result to me, what's wrong?

how do I set, SetPrimaryPartCFrame?