a minimal toothpaste squeezer has ratcheting type system to keep tube from unwinding.

simple. just wind to tighten and unwind to loosen.

included a auto-roller the u can use to keep the tube as cole to the main  rooler as possible.

u insert the tube end into the auto-roller the into the main roller.

if you just want to insert the tube in through the frame then into the mail roller it doable cuz the fram has slots to allow for this.

just 2 pieces 3 pieces. 3  if u want to include the auto-roller

ill include a seperate squeezer piece that keeps tube and squeezer slot as close as possible.

no supports