How to create a slotted hole (slot) on the lateral surface of a pipe or a cylinder in FreeCAD 0.19? I'll show you in this tutorial

Maybe you're used to drawing slotted holes in FreeCAD's sketcher and create slots on flat surfaces like a plate or a cube. But how can you do this and create a nice groove around a pipe where both drills are still perpendicular to the cylinder's lateral surface?
I'm using a simple pocket and a polar pattern to revolve this hole around my pipe and a groove to remove the material between the two holes.
What do you think about it?

I am always happy for feedback and I am always willing to improve both my CAD skills and my English tutoring skills as well.

You find the German 'original' version of this tutorial on my German channel 'flowwie's corner' here:
   • FreeCAD 0.19  Umlaufende Nut an Rohr...  

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Mechanical engineer specializing in digital product development.
CAD expert with over 11 years of experience in various CAD systems such as Siemens NX, Siemens Solid Edge, Catia V5, Onshape, FreeCAD and Fusion 360.
Former lecturer for basic CAD training in the engineering program of the Department of Environmental Planning/ Environmental Engineering at Trier University of Applied Sciences.

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