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I'm making a stained glass window. I'm now at the point where I want to connect all the individual pipes with each other but I feel like I've tried everything and I just can't seem to get it to work.

Here's a video of the problem and what I tried.

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    $\begingroup$ Hello and welcome. While files, images, and external videos or links may be helpful additions they should not be the only way to obtain information about your issue. Don't make understanding your question rely on downloading a file, watching a video or visiting an external site. Use the builtin tools to upload images or gifs, along with thoroughly explaining the problem in written form so it can be indexed and searched for thus helping future visitors with similar issues. $\endgroup$ Aug 24, 2022 at 22:43
  • $\begingroup$ Suggest you investigate Blender's spin tool to get the rotation and then bridge edge loops when the alignment is close enough. $\endgroup$
    – John Eason
    Aug 24, 2022 at 22:44

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It depends what kind of join you want. If you want a curved join you can do something as simple as the following. Select the two (2) Edge Loops (without faces) and go to menu Edge > Bridge Edge Loops. In the lower left corner where the operator options popup, increase the Number of Cuts.

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If you want the pipes to have a sharper intersection and a rounded joined outer edge, you can do this, albeit more tedious, procedure:

Set the Transform Orientation to Normal and set the Transform Pivot Point to Individual Origins.

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Make sure you're in Edit Mode and tick the Auto Merge checkbox and the Split Edges & Faces checkbox under Active Tool and Workspace Settings.

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Select the two (2) Edge Loops you want to merge and press G then Z to move the faces along their Normals until they fully intersect each other. Click LMB or press Enter to confirm.

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Press K to enable the Knife Tool then individually click LMB on each vertex or click and drag through each vertex along the circular intersected section until you complete the loop and press Enter to confirm the cut.

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Now you can select the excess faces and press X > Delete Faces.

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Press K again to enable the Knife Tool and repeat the cutting procedure for the inner face intersection as shown:

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Select the inner faces and press X > Delete Faces.

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Select the hollow area's Edge Loop and press F to Fill Face. Move the mouse away from the center. Press i to Inset Face and slowly move towards the select face center. click LMB or press Enter to confirm. Hover over the face and press Ctrl+R to add a Loop Cut and scroll your mouse forward to add several cuts.

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Select the inner face and press Shift+S > Cursor to Selected. Set the Transform Pivot Point to 3D Cursor and enable Proportional Editing and set the Proportional Editing Falloff to Sphere.

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With the inner face selected press G then Z to move along the normal and scroll your mouse wheel to adjust the amount of editing you need to get a nice curved surface.

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    $\begingroup$ very nice answer!!+1 $\endgroup$
    – Chris
    Aug 25, 2022 at 5:49
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    $\begingroup$ that's one reason why i am making tutorials. Because if you repeat stuff, you learn it yourself better. And you can even watch your own tutorials, if you forgot it (what already happened in my case :D) and you learn it even deeper because whenever you do it - you often discover new aspects $\endgroup$
    – Chris
    Aug 25, 2022 at 6:25
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    $\begingroup$ Now I know what you wanted the selection order for :) $\endgroup$ Aug 25, 2022 at 7:09
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    $\begingroup$ Just a quick idea for a nicer rounded corner: fill the edge loop with F, extrude it a bit with E, scale it down with S to match the edge flow, then bevel with B: round corner with bevel $\endgroup$ Aug 25, 2022 at 8:52
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    $\begingroup$ @GordonBrinkmann hey that's even better! thanks for sharing! :) $\endgroup$ Aug 25, 2022 at 8:58
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You did good by connecting them but before that you should rotate the faces in each others' direction. Select one face then apply shear(click F3 > Type "Shear"), after that connect the two faces as you did before and apply a single edge loop, then click Ctrl+B to Smoothened it out.

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