@djazzy
Thank you for your question, follow up and perseverance to overcome a language barrier. I hope you are enjoying the experience as much as me
. I have gained much and had lot of S3D fun 
If you consider this ScreenShot to be approaching your requirements, and will be satisfactory for the intended Production Process, it may be worth reading on?
Be aware that this is only providing a Butt Join between Glazing and Frame, if you find the Sketches obstruct your workflow Hide rather than Deleting them, some are used more than once.
Using appropriate dimensions it would be possible to produce Stepped or Grooved housings for the glazing. It would be interesting to learn:
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If the Butt Join can be used for Printing?
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How the Printing Process would be deployed, e.g, 2 Filament single pass or separate passes for each Filament plus Adhesive or ???
To create something similar to ScreenShot below construct the Tapered Hexagon using the method you prefer.
Note that the Small Circular Top has been replaced by a Small Hexagon to enable the following process, and only one panel has been shown ‘glazed’.
Tools > Shell > Select the Bottom Hexagon Face > Next > Set Thickness [top left] to your choice [3 mm in this case] > Done
The Hexagon shape will be hollowed leaving a Shell.
Choose one of the Faces that will require Glazing and Tap on it with your Finger
Add > Construction Plane > type Offset > Next Do Not Adjust the Offset Value > Done
Sketch > Line/Curve > Create a Closed Sketch by drawing around the perimeter of the chosen face.
Items > Plane 0# [representing the Plane just used] > Hide
Tools > Offset > Drag one Edge of the Closed Sketch inward by a similar measurement to that chosen for the Shell Thickness.
Alternatively drawing all the Closed Sketches, selecting all of them and then going to the next step is an option.
Revert to 3D View and Select the newly created Closed Sketch and Push the Double Headed Arrow through the Shell.
Repeat the processes necessary to form the entire Hexagon Frame.
Items > Body 0# [representing the Hex Body] > Hide
Choose the Faces to be Glazed, Select them and Push to the required Thickness [in this case 1.5mm]
Apply to all appropriate Glazing Panels.
If required Transform > Move/Rotate > adjust the position of the Panels within the Frame Depth.
Tools > Color > Select the chosen shade and opacity
Transform > Move/Rotate > Move the Panel inward by the appropriate measurement.
Repeat to ‘glaze’ all appropriate Faces.
Repeat the whole process for the Lower Hex Body plus its Bottom Face.