Merging two Tubes

I want to create an object with one tube plus another half like in the screenshot but as you can see there is intersecting polygons.

I have tried connect objects, connect and bool but none solves my problem. What is the best way to create the form I’m looking for?

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Answer

option 1:

  • create 2 tubes and cut anything you want to cut from the second tube

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  • select both tubes > rmb > connect obejcts and delete

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  • select common edges

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  • rmb > stitch and sew

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  • while holding CTRL drag from one point to another

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  • do the same on another side

  • select some polygons and hide them to see “the wall” between tubes

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  • delete the wall

  • unhide polygons

  • profit

option 2:

  • create 2 tubes and cut anything you want to cut from the second tube

  • select contour edges on half-ring

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  • mesh > commands > edge to spline

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  • select ONLY outside edges on the other ring

  • mesh > commands > edge to spline

  • select both splines

  • create a “spline mask”

  • put both splines into the mask

  • in the mask options choose XZ (along Y)

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  • press C

  • select the inner edge of the ring > egde to spline

  • select both splines > rmb > connect objects and delete

  • create an extrusion

  • profit

Attribution
Source : Link , Question Author : StefanE , Answer Author : Luciano

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