Tweening a model with a model inside it, wont work

Help and Feedback Scripting Support
#1

Hello, I’ve been developing a remastered version of Roblox Death Run and have created several traps. Most notably, I have a model of a spinning saw mounted on a moving platform.

The saw is already in motion, but I’m attempting to tween the entire model that includes the saw. I’ve followed multiple tutorials involving Pivot and primary parts without success.
By the way, the mounted saw moves up and down along a metal plate as shown in the image below.

Does anyone have any suggestions?

Please feel free to ask for clarification if my explanation is unclear.

Saw:

image
image1920×1035 45.3 KB

#2

Hi! You have to weld all of the parts within the model to the primary part. Part 0 is the Primary Part and Part 1 is the part your welding. Then you can just tween the primary part

#3

oh this is actually really smart! tysm!

1 Like
#4 
TweenService:Create failed because Instance is null

do you know how to fix this in output?

#5

Did you set the PrimaryPart? Can I see where you’re creating the tween?

#6

Oh hold on i think i set it up wrong

#7

So when i try to move the primary part with all the welds it deletes the welds

#8

Oh I forgot to mention you have to use CFrame not position when moving welded objects

#9

Make sure all the welded parts are unanchored. and the only thing anchored is the primary part. Then tween the primary part using CFrame.

Example Code:

local TweenService = game:GetService("TweenService")

local EndPosition = Vector3.new(1,1,1)
local Tween = TweenService:Create(PrimaryPart,TweenInfo.new(10),{CFrame = CFrame.new(EndPosition)})

Tween:Play()