How to extrude to other side rounded?

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1

Hello. I’m modeling a couch and I need extrude this couch side to the left side, but to keep the form and make a round corner. Tried to use transform tool / shear, but it doesn’t work, any alternatives to do it fast?

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Fast is a matter of opinion here, but what I would do is to select the front faces of the last section of the couch near the corner - just to the right of the faces highlighted in your image (which I would delete), between the top and bottom horizontal faces. Then duplicate them and rotate them -90 degrees around the z-axis, and position them. Line up the edge loops, and join by adding faces. Use Bridge Edge Loops at the corner (with an extra cut, perhaps) to finish it off.

This is a somewhat rough explanation, but if you need more details let me know.

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The bridge edge loops doesn’t work for this form.

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After merge by distance

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Here is a quick video I made. There is no audio; otherwise it would have taken many more takes. I will edit this post to add in details on keyboard shortcuts that are not obvious.

Steps:

  • Set the cursor at the top corner, and select faces (also, set pivot: Period-Key, 3D Cursor)
  • In Top View (NumPad 7), Shift-D to duplicate, R-key to rotate, and hold CTRL to snap to 90 degrees
  • Move on y-axis (G, Y); delete the unneeded face
  • Select “front” edges (Alt-click); scale to cursor (S, Y, 0)
  • Move cursor (select vertex, Shift-S, Cursor To Selected);
  • Select “back” edges (Alt-click); scale to cursor (S, Y, 0)
  • Select faces shown and merge by distance (Alt-M)
  • Select the three pairs of edges shown and use Bridge Edge Loops with count increased to 1
  • Select the two edges on the “piping” (as shown), and use Bridge Edge Loops with count increased to 1
  • Move cursor, select middle edge
  • In Top View, scale in x-y plane (S, Shift-Z) to position (hold Shift-Key for precision)
  • Add “bottom” faces
  • Use Bridge Edge Loops with count increased to 1; select middle edge
  • Scale in Top View as above to position
  • Add “top” faces

Note: Except for the first use of Bridge Edge Loops, I would normally have just added the faces and then added the center edge with a loop cut (CTRL-R). Also, I used the number keys 1, 2, and 3 to switch between vertex, edge, and face selection modes.

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6

OK, so a quicker method occurred to me just as I finished writing the steps above:

  • Set the initial cursor position as above
  • Select the edges shown
  • In Top View, extrude and rotate 45 degrees (E, R), pressing CTRL during rotation to snap to 5 degree increments
  • Press Shift-R to repeat
  • Move 3D cursor
  • Select edges and scale to cursor (S, Y, 0)
  • Fill in gaps (I subdivided the bottom edge of the triangular face during this part)

Note: For a smoother corner, try extruding/rotating 30 degrees, and use Shift-R twice, then extrude edges back along y-axis. Filling in gaps would be a little more complicated with two edge loops ending at the triangle.

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