Help with getting offset from weld since the weld resets positions

Help and Feedback Scripting Support
#1

so i try to do this formula to solve for the C0:
weld.C0 = weld.Part0.CFrame:inverse() * weld.Part1.CFrame * weld.C1
however, when i set the world to part0 and part1, part1 goes to part0 making this formula unreliable.

Im using this as i have a vehicle that i want to weld together, and im using this script in the command bar:

local jet = workspace.Jet

for i, v in pairs(jet:GetChildren()) do
	if v:IsA("BasePart") or v:IsA("MeshPart") and v.Name ~= "PRIMARYPARTVERYIMPORTANT" then
		weld = Instance.new("Weld")
		weld.Parent = v
		
		weld.Part0 = jet.PRIMARYPARTVERYIMPORTANT
		weld.Part1 = v
		
		local offset = jet.PRIMARYPARTVERYIMPORTANT.CFrame * weld.Part1.CFrame * weld.C1
		
		weld.C0 = offset
	end
end
#2

Try this

local jet = workspace.Jet

for i, v in pairs(jet:GetChildren()) do
	if (v:IsA("BasePart") or v:IsA("MeshPart")) and v.Name ~= "PRIMARYPARTVERYIMPORTANT" then
		local weld = Instance.new("Weld")
		weld.C0 = jet.PRIMARYPARTVERYIMPORTANT.CFrame:Inverse() * v.CFrame
		weld.Part0 = jet.PRIMARYPARTVERYIMPORTANT
		weld.Part1 = v
		weld.Parent = v
	end
end

when you put Part0 and Part1, C0 and C1 are applied automatically, so it is better to configure it before selecting the parts.

#3

this doesn’t work, as c0 and c1 are nil cause the world has no part1 and part0.

#4

Oh, sorry, I did it fast lmao and corrected the formula.

#5

Lmao all good, i did find a solution tho, this:

local jet = workspace.Jet

for i, v in pairs(jet:GetChildren()) do
	if v:IsA("BasePart") or v:IsA("MeshPart") and v.Name ~= "PRIMARYPARTVERYIMPORTANT" then
		local offset = jet.PRIMARYPARTVERYIMPORTANT.CFrame:Inverse() * v.CFrame
		
		local weld = Instance.new("Weld")
		weld.Parent = v
		weld.Part0 = jet.PRIMARYPARTVERYIMPORTANT
		weld.Part1 = v
		
		weld.C0 = offset
	end
end

I figured it out when u said get the offset before the weld is set