How to make spinning model in relation to object

[PhantomGame_Youtube (Ze_InSoRiTy)]

1. What do you want to achieve? Keep it simple and clear!
   So basically i need to make an model spin around an object, i using weld constraints and primary part to rotate model. Simple BaseParts are rotating, Unions are not. Second thing what i have no idea how to make it spinning in relation with object. Here is small video with explanations what i’m trying to make: 2022 10 27 12 51 46 - YouTube.
2. What is the issue? Include screenshots / videos if possible!
   Read 1st
3. What solutions have you tried so far? Did you look for solutions on the Developer Hub? I tryed using weld constraints, but they don’t work with unions

Code for spinning:

local PrimaryPart = script.Parent.PrimaryPart
while true do
	PrimaryPart.CFrame = PrimaryPart.CFrame * CFrame.Angles(0,math.rad(-1), 0)
	task.wait(0.01)
end

[PhantomGame_Youtube (Ze_InSoRiTy)]

Oh exactly i found solution, i forgot to unanchor engine parts, closed.