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  1. #21
    Quantum Mechanic ReMark's Avatar
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    Trim both circles that form the O.D. and I.D. so you end up with two arcs. Extrude the arcs up and through your extruded profile. These extruded arcs are surfaces that will be used to slice off portions of the extruded profile.

    You will be using the SLICE command with its Surface option to accomplish this task. When executing the SLICE command pay particular attention to the command line and what AutoCAD is both tell and asking you.

    3dspacer3.JPG

    This should be the result.

    3dspacer4.JPG

    Before we can array this however it must be tapered from the O.D. to the I.D.
    Last edited by ReMark; 27th Nov 2017 at 12:27 pm.
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  2. #22
    Quantum Mechanic ReMark's Avatar
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    Draw two taper lines (cyan colored in image below) from the center of the the arcs to the outside corners of the extruded profile. These will be extruded upwards to slice off the edges of the profile. Again, you will be using the SLICE command with its Surface option to complete this task.

    3dspacer5.JPG

    Taper lines (which are surfaces) extruded through profile.

    3dspacer6.jpg

    Once you have trimmed the extruded profile with the taper lines you can array it. You are familiar with polar arrays are you not?
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  3. #23
    Quantum Mechanic ReMark's Avatar
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    Top view of tapered profile before executing a polar array. Visual style is X-ray.

    3dspacer7.JPG
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  4. #24
    Quantum Mechanic ReMark's Avatar
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    Final steps. Execute a polar array, explode the array (since it will be a block, then union all the ridges to form a single 3D solid model.

    3dspacer8.jpg

    If after all this you still cannot accomplish the task then perhaps you need to practice with the 3D modeling commands a bit more before attempting to create your spacer ring.
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  5. #25
    Super Moderator SLW210's Avatar
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    I have moved your thread to the AutoCAD 3D Modelling & Rendering Forum, please post in the correct forum.
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  6. #26
    Quantum Mechanic
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    Great tutorial Remark

    For Basty re read my post in particular the use of rotate3D look at Remark's image where the profile is standing vertical compared to the circles.
    A man who never made mistakes never made anything

  7. #27
    Quantum Mechanic ReMark's Avatar
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    BIGAL: Thank you for your kind words.

    Basty: You can also use the Object option with the SLICE command. You do not necessarily have to extrude the lines and create surfaces.
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  8. #28
    Quantum Mechanic ReMark's Avatar
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    basty: Did you finally figure it out or did you give up?
    "I have only come here seeking knowledge. Things they wouldn't teach me of in college." The Police

    Eat brains...gain more knowledge!

    I'm now a full member of the Society for the Promotion of Mediocrity in CAD. Standards? We don't need no stinkin' standards! Take whatever advice I offer and do the opposite.

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