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Anyone know what's the best way to model this knurled lid?

homey_jayhomey_jay Posts: 44
edited December 1969 in Carrara Discussion

The underlying shape is pretty easy but whats the best way to add the vertical grooves on the side face? I tried to map scan lines vertically on the side - it works but not very well!

Any help would result in a virtual high five..

lid.jpg
702 x 252 - 27K

Comments

  • DiomedeDiomede Posts: 15,173
    edited December 1969

    If you have Pro, I have a suggestion for a relatively easy way, but probably not the best.
    - insert an oval (z axis) in the vertex modeler and increase the vertex count (or insert a cylinder and increase sides and have 3 sections)
    - add thickness to the oval. Extrude slightly from top then from bottom.
    - select two of the vertical lines in the middle and choose ring. The middle section of lines should be selected.
    - use "extract along" and drag the new lines to about the center of the polygons. The new lines will remain selected.
    - Keeping all of the new lines selected, reduce the scale in both the x and y dimensions by the same amount.

    I have attached a couple of screenshots. To make it easier to continue editing, you might want to use the name function in the selection menu. That way you can easily select the ridges if you want to filet to add smoothness, etc.

    I'm sure others have an even easier way, but this will work.

    4_render.jpg
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    3_scale_x_and_y_95_percent.JPG
    635 x 362 - 26K
    2_ring_extract_along_remain_selected.JPG
    567 x 412 - 23K
    1_oval_add_thickness_extrude_up_and_down.JPG
    496 x 367 - 19K
  • VarselVarsel Posts: 574
    edited December 1969

    In the vertex modeller you can use the replicate command. (Under meny Edit)

    Create one part of the shape.

    Chose replicate.
    Set it to circle.
    Set no. of replications.
    Arch angle - 360 - full circle
    Radius - this is the tricky part. I wasn't able to find any system in the value here, so it is trial and errors. You want the ends to touch each other. Start with the default. Then, if not right use - Edit - Undo and then decrease or increase the value.

    When you got it right select all the replicated shapes and weld together. When welding you want to use - Use Custom Tolerances. And then adjust this value to it just welds the ends together.

    Untitled-2.jpg
    975 x 989 - 386K
  • Philemo_CarraraPhilemo_Carrara Posts: 1,175
    edited December 1969

    homey_jay said:
    The underlying shape is pretty easy but whats the best way to add the vertical grooves on the side face? I tried to map scan lines vertically on the side - it works but not very well!

    Any help would result in a virtual high five..


    I've got a solution close to Varsel one, but I use the replicator (not the surface replicator, the regular one) to save on polygons.
    Replicator.PNG
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    cap.png
    640 x 480 - 21K
  • dot_batdot_bat Posts: 373
    edited December 1969

    diomede64 is on the rite track. i dont have carrara installed at the moment thanx to my confusion with the dim app. but here is a screen shot from something i did a while ago

    Screen_Shot_2014-06-13_at_3.18_.35_AM_.png
    360 x 444 - 218K
  • homey_jayhomey_jay Posts: 44
    edited December 1969

    Thanks guys,
    These have all been totally helpful and I've done it now, using these tips.

    Consider yourselves be be high fived..! :)

  • evilproducerevilproducer Posts: 9,050
    edited December 1969

    It's a great little community with a lot of knowledgeable folks. Most (if not all) are willing to share their knowledge with anybody that asks. The great thing about Carrara is that there are usually many paths to get the results you need!

    Please feel free to ask for any help, and also if you have an insight to share, please do so! There may be answers already, but another way can't hurt, and even us old salts can still learn a thing or two!

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