Keep Model on top of the Handle when scaling

What Im trying to accomplish is when I scale the model, I want the model to stay on top the Handle regardless of scale. When I scale the model manually, it covers the handle.

Normal size:

Scaled up:

What I tried is:

  1. set pivot point below the model
  2. Changed the offset

Here’s the heirarchy:

Core is weldconstrained to the handle.

Thanks in advance!

move pivot of part down if you want to make it simple;
If you want to make it complex then you need to increace C1 CFrame in mesh for half the size you scaled it up to