Jump to content

Hey

please be considerate and disable AD blocker when you are on the C4D Cafe, because it helps us run this forum. We minimalized showing of the AD's all across the forums, so please, be so kind and at least help us by having AD blocker turned off. 



Archived

This topic is now archived and is closed to further replies.

ulfwiklund

Extrude Polygons In A Cylinder

Recommended Posts

ulfwiklund    0
  • Topic Author
  • I desperately want help to make a smooth slot inside a cylinder. I want the slot to go all the way inside the cylinder. I don´t know how to work with the polygons, and how to delete polygons at the top. Hard to get it smooth inside a HN. I,ve tried to make the slot with boole object, but it´s not good. Please, help me...

    -ulf

    slot.c4d

    post-131834-0-18837500-1342733606_thumb.

    Share this post


    Link to post
    Share on other sites

    Whithers    13

    Hi ulf,

    It's kind of hard to picture what you're going for, but I think the key info here is how the hypernurbs does its thing and what makes good topology.

    Here's a scene file. It may not be what you're going for (reference image, maybe?), but you can see how I made cuts and moved points (etc) to change the way everything worked out.

    I strongly suggest spending a modest sum on hsrdelic's Vertex Pusher tutorials--very helpful for understanding these kinds of things.

    Hope that helps! Let us know if you have other questions.

    ~Whithers

    slot_0001.c4d

    Share this post


    Link to post
    Share on other sites
    ulfwiklund    0
  • Topic Author
  • Hi ulf,

    It's kind of hard to picture what you're going for, but I think the key info here is how the hypernurbs does its thing and what makes good topology.

    Here's a scene file. It may not be what you're going for (reference image, maybe?), but you can see how I made cuts and moved points (etc) to change the way everything worked out.

    I strongly suggest spending a modest sum on hsrdelic's Vertex Pusher tutorials--very helpful for understanding these kinds of things.

    Hope that helps! Let us know if you have other questions.

    ~Whithers

    Thank you. Still wonder how I get rid of unnecessary polygons after extrusion. Attaching a ref-image (Boole).

    Hi ulf,

    It's kind of hard to picture what you're going for, but I think the key info here is how the hypernurbs does its thing and what makes good topology.

    Here's a scene file. It may not be what you're going for (reference image, maybe?), but you can see how I made cuts and moved points (etc) to change the way everything worked out.

    I strongly suggest spending a modest sum on hsrdelic's Vertex Pusher tutorials--very helpful for understanding these kinds of things.

    Hope that helps! Let us know if you have other questions.

    ~Whithers

    Thank you. Still wonder how I get rid of unnecessary polygons after extrusion. Attaching a ref-image (Boole).

    post-131834-0-89870400-1342777246_thumb.

    Share this post


    Link to post
    Share on other sites
    RusKern    0

    post-74060-0-60941000-1342784993_thumb.p

    If this is what you are looking for, I wouldn't extrude it at all (at least not that part) I'd:

    1. Create a cylinder without caps and then make it editable.

    2. Close the Polygon hole on one end. (This will create a "can")

    3. Select all the Polygons and extrude them to give the "can" some thickness (Extrude it twice so you get a subdivision in the top )

    post-74060-0-25847100-1342785651_thumb.p

    4. Delete the polygons on the top & inside where you want the cutout....

    post-74060-0-03714200-1342785710_thumb.p

    5. Select the EDGE on the bottom of this area and extrude it back into the can to create your base for the cutout (You need the edge & points for the next step)

    post-74060-0-78088300-1342785822_thumb.p

    6. Then, using the bridge tool connect each of the 3 sets of top & bottom edges of this region.

    post-74060-0-99090000-1342785857_thumb.p

    This isn't very efficient I suppose if you have a lot of sections to do, but works well for one or two.

    Hope it helps.

    R

    Share this post


    Link to post
    Share on other sites
    existe    11

    I strongly suggest spending a modest sum on hsrdelic's Vertex Pusher tutorials--very helpful for understanding these kinds of things.

    I second this, I am going through Vol. 1 right now and it has helped me a ton to understand how to get through things I could not before and also what I was not doing right, highly recommend you check these tutorials out.

    Share this post


    Link to post
    Share on other sites
    ulfwiklund    0
  • Topic Author
  • I second this, I am going through Vol. 1 right now and it has helped me a ton to understand how to get through things I could not before and also what I was not doing right, highly recommend you check these tutorials out.

    I´m doing the same thing, and I strongly agree with you. It´s great lessons.

    -ulf

    Share this post


    Link to post
    Share on other sites
    ulfwiklund    0
  • Topic Author
  • Thank you, existe. I want to have 4 slot/rails (my english could also be better) for inner walls who can slip down in to my cylinder. Therefore I have to make new edges. I´ve tried to bevel the axis centre edges into 2 new. That makes some messy geometry. It´s also difficult for me to know how to delete polygons so I get nice and sharp rails in a HN, without adding that may cuts. Another question is how I shall cut in order to get it right in the HN. If I loop cut, I´ll get deformed geometry on the outer side of the cylinder. If i line cut, I´ll get disturbing n-gons. Suggestions? Solutions?

    -ulf

    post-131834-0-05959900-1342938942_thumb.

    rail.c4d

    Share this post


    Link to post
    Share on other sites
    SKP    4

    Why not build the inside surface as a separate object, complete with the slots, which you will later combine with the exterior into a single object? OK the caps won't be there but you will be able to create these afterwards with the Bridge tool or Stitch and Sew.

    Share this post


    Link to post
    Share on other sites
    ulfwiklund    0
  • Topic Author
  • Why not build the inside surface as a separate object, complete with the slots, which you will later combine with the exterior into a single object? OK the caps won't be there but you will be able to create these afterwards with the Bridge tool or Stitch and Sew.

    Thanks. I will try that. Probably you will hear from me again. By the way, makes me happy to hear your scottish accent. Went to Glasgow a couple of years ago. T´was raining every day. One early morning I was running under a bridge with a swedish flag on my wet cap, when an excited old man stopped me and thought I was Henrik Larsson. Wonderful city.

    Share this post


    Link to post
    Share on other sites
    ulfwiklund    0
  • Topic Author
  • Made this from a disc. Thougt I do as you suggested, delete the old border and bridge this one to the cylinder. Did a 0-extrude and moved it up with bottom cap. Line cuts and repositioning points. But when I do loop cuts in order to shape it up in the HN, it gets really messy. How shall I do it? Close to despair.

    -ulf

    new wall.c4d

    Share this post


    Link to post
    Share on other sites
    SKP    4

    Naughty naughty. You're using R13 not R11 as in your profile. You should update your profile so that people know how best to answer. When I made the video earlier I deliberately used my old R11.5 so the tools would be appropriate and you would be able to open the scenefile.

    Share this post


    Link to post
    Share on other sites
    ulfwiklund    0
  • Topic Author
  • Naughty naughty. You're using R13 not R11 as in your profile. You should update your profile so that people know how best to answer. When I made the video earlier I deliberately used my old R11.5 so the tools would be appropriate and you would be able to open the scenefile.

    Sorry. Just updated both version and now my settings.

    -ulf

    Share this post


    Link to post
    Share on other sites
    Guest
    This topic is now closed to further replies.

    • Recently Browsing   0 members

      No registered users viewing this page.

    ×