How to regen a model without it falling apart?

I have a model that is connected with studs and inlets but when i use this script to regen it, it just falls apart! I also want it to repeat so i added while true do

while true do
wait(20)
script.Parent.Block:remove()
wait(77)
backup = model:clone()
model:remove()
model = backup:clone()
model.Parent = game.Workspace
model:makeJoints()


S = game.ReplicatedStorage["Spawn All"]:Clone()
S.Parent = game.Workspace
B = game.ReplicatedStorage.Block:Clone()
B.Parent = game.Workspace
end