Additive pipe vs additive loft

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Hi,

I need to create a part which has a profile and multiply cross-section (rectangle, circle and slot) - my part has to have inner section (circle).

I know that I have to use additive pipe/loft, but I don't understand different between them.
My understanding is that additive pipe is the same as the loft(with the same features, including creating inner section) with extra possibility to sweep along profile.
Other words I can achieve exactly the same using loft and pipe.

Could you correct me if I'm wrong?

If the question is stupid- sorry, I'm still learning. I haven't found answer for this question in docs and on multiply tutorials as well.

Thanks!

Code: Select all

OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.20.2.29177 +426 (Git)
Build type: Release
Branch: (HEAD detached from 0.20.2)
Hash: 930dd9a76203a3260b1e6256c70c1c3cad8c5cb8
Python 3.8.10, Qt 5.15.2, Coin 4.0.1, Vtk 8.2.0, OCC 7.6.3
Locale: Polish/Poland (pl_PL)
Installed mods: 
  * A2plus 0.4.60k
  * Assembly4 0.12.6
  * Curves 0.6.8
  * ExplodedAssembly
  * fasteners 0.4.55
  * freecad.gears 1.0.0
  * lattice2 1.0.0
  * Manipulator 1.5.0
  * ThreadProfile 1.84.0

[NewJoker]

PartDesign AdditivePipe = sweeping a profile along a path (with an option for additional profiles)
PartDesign AdditiveLoft = connecting multiple profiles (cross-sections) with no option for guide curves (unfortunately)

[jfc4120]

A loft is different from a sweep. A sweep will calculate miters. A loft follows, no miters. Additive pipe can work more like part sweep if needed.

Edit:

Image is a double offset (a change in two directions) Also a change in size. Additive loft will not do this, additive pipe will. You have to do a little calculating however first with a change in size.