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I am trying to model the object you can see in the reference photos.

Back view:

Back

Side view

Side

Front View Front

Top View: Top

Bottom view: bottom

Angled View:

enter image description here

I am having great difficulties smoothly connecting this cylinder shape with the torrus shape. As you can see it has "half pipes" going from the sides to the ring. But it also curves from the backside of the cylinder (which juts out/stands out farther than the end of the torus) to the torus. So you have different curves that have to be connected smoothly. This also means that the cylinder shape somewhat "dissolves" at the bottom when it meets the torus. I tried with bridge edge loops that go from torus to top of the cylinder (see blender file). However then I am left with trying to bridge the sides with back and front parts which I dont manage for the back part (without creating a unsmooth mess of it). Also you lose the shape of the object in side view.

Any ideas with this modelling problem? How do I smoothly connect the cylinder with the torus as seen in the refrence photos with all the curves shown (half pipe on side, curve from back of cylinder to the back of torus on the backside)?

Paul
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2 Answers2

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Create a 24/8 segment torus (use AltS in Edit mode in order to shrink/fatten to make it as thick as your reference, cut a hole:

enter image description here

enter image description here

Extrude inwards, right click > LoopTools > Circle, still use the side view to make sure that it fits the shape:

enter image description here

Extrude up:

enter image description here

Use the front view to correct:

enter image description here

Add some edge loops if necessary, etc:

enter image description here

enter image description here

moonboots
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  • Thanks can you show me how it would work with the backside of the cylinder jutting out farther than the backside of the torrus. I have added another reference image to my post. – Paul Apr 03 '22 at 16:00
  • you just need to increase the radius of the circle, create some new edge loops and move them back, etc. Try to keep as less edge loops as possible to make the shape easier to work – moonboots Apr 03 '22 at 16:02
  • Yes I am new to blender.stackexchange. Sorry for that. I have added the side view in my post. – Paul Apr 03 '22 at 16:07
  • Ok I've edited, please check the answer – moonboots Apr 03 '22 at 16:14
  • Thanks. That looks good. How does your model look from the front? – Paul Apr 03 '22 at 16:22
  • Ok I've corrected with the help of the front view – moonboots Apr 03 '22 at 17:11
  • Thank you for your generous help. Can you tell me how to extrude inwards? Whats the shortcut? And for Right click circle, do I need a add on? – Paul Apr 03 '22 at 17:56
  • delete the vertices, select the edge all around the hole, press E to extrude then Enter right away, then scale inwards (S). For the Circle operation you need to activate the LoopTools addon which is part of Blender – moonboots Apr 03 '22 at 17:57
  • Let us continue this discussion in chat. – Paul Apr 04 '22 at 12:18
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Here's the simple version:

  • Create a Torus
  • Go to edit mode.
  • Pick a vertex on the top ring and delete it.
  • Pick the 8 vertices that surround the hole. selected vertices
  • Scale 0 on the Z axis
  • Use loop tools to form into a circle.
  • Extrude on the Z axis.
  • Add a subsurf final form

Loop tools is an add-on that's built in and you have to enable. Your blend file has it enabled.

Marty Fouts
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  • Sorry thats not how the object looks. For some reason my blender file didnt upload? Its a torus and the the cylinder shape sits on the ring. – Paul Apr 03 '22 at 15:31
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    Don't make understanding your question rely on downloading a file, please add enough images to your post to make it clear what your object looks like – Duarte Farrajota Ramos Apr 03 '22 at 15:36
  • @Marty I have added the blender file. I could only upload one image per this software but more reference photos are in the blend file. – Paul Apr 03 '22 at 15:40
  • @Paul I've edited my answer. I would hope that you accept mine and then upvote Moonboots' similar but different take. – Marty Fouts Apr 03 '22 at 15:50
  • @Marty please check another reference image (side view). Problem I have with the answers so far is that the cylinder backside does not jut out versus end of backside of torus. As you can see from the reference image the backside of the cylinder juts out father than the backside of the torus. And then there is a smooth curve connecting backside of cylinder to backside of torus. – Paul Apr 03 '22 at 16:03
  • @Paul your current file doesn't contain the reference images. – Marty Fouts Apr 03 '22 at 16:13
  • @Marty I have also added front view. Is it possible to create this specific shape with the tools you mentioned? – Paul Apr 03 '22 at 16:13
  • @Paul It is. You can extrude the cylinder a short distance, rotate it and scale it to get it off center and at an angle, extrude it again, and get it to match, as moonboots has done in their answer. The two answers are very similar. – Marty Fouts Apr 03 '22 at 16:35