how the FUCK do you tween a model

[native turtle]

i cant anymore bro this is driving me fucking crazy i tried learning this months ago to no avail
tried again today and it just WONT WORK!!!!
i have this stupid ass model where both of those gray parts are welded to the red part via weldconstraint (the red part is set as the model's primarypart)

i have a clickdetector which tweens the primarypart's cframe to go upwards but GUESS WHAT!! ONLY THE PRIMARYPART MOVES AND THE OTHER PARTS STAY STATIC!!!!!!! AND THEYRE UNANCHORED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

local ts = game:GetService("TweenService")
local p = workspace.Test.PrimaryPart

script.Parent.MouseClick:Connect(function()
    ts:Create(p, TweenInfo.new(2, Enum.EasingStyle.Linear), {CFrame = p.CFrame + Vector3.new(0,10,0)}):Play()
end)

I cant anymore dude what am i even doing wrong

[unreal elm]

use :PivotTo instead of setting the cframe directly

[native turtle]

wouldnt pivotto make it instantly move though

[unreal elm]

yes, but you'd call pivotto every frame by using a tween

[native turtle]

can you show me an example because idk how id use pivotto in a tween

[unreal elm]

you'd just create a cframe instance, tween it, and then connect model:PivotTo(CF) to CF:Changed

[native turtle]

there has to be a better way to do it than that though ive seen people do it the way i tried a ton of times before it just doesnt work for me in specific i dont know why

[unreal elm]

the primarypart is anchored right?

[native turtle]

yes