# Help with copy of real model

**URL:** <https://discourse.shapr3d.com/t/help-with-copy-of-real-model/17639>\
**Category:** Modeling Questions\
**Created:** [February 25, 2022, 4:46pm UTC](https://discourse.shapr3d.com/t/help-with-copy-of-real-model/17639 "2022-02-25T16:46:22Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![prochazkao](https://avatars.discourse-cdn.com/v4/letter/p/977dab/32.png) [@prochazkao](https://discourse.shapr3d.com/u/prochazkao)\
**Post date:** [February 25, 2022, 4:46pm UTC](https://discourse.shapr3d.com/t/help-with-copy-of-real-model/17639/1 "2022-02-25T16:46:22Z")

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![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/c/cd0df50d067a3d68a57e26c4b39c9b414b44735f.jpeg)

Hello I would like ask how draw this three imaginary round objects to each other please ? Ring + concave bottom and middle sphere.

And the also back side which hollow shape. Please do you have some idea or tutorial similar.

Many thank you. Ondrej -

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**Author:** ![prochazkao](https://avatars.discourse-cdn.com/v4/letter/p/977dab/32.png) [@prochazkao](https://discourse.shapr3d.com/u/prochazkao)\
**Post date:** [February 25, 2022, 4:48pm UTC](https://discourse.shapr3d.com/t/help-with-copy-of-real-model/17639/2 "2022-02-25T16:48:07Z")

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’

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/e/e5b2dfa70c8acdebd6807464d62487337d7a9643.jpeg)

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**Author:** ![McD](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/mcd/32/15504_2.png) [@McD](https://discourse.shapr3d.com/u/McD)\
**Post date:** [February 25, 2022, 5:12pm UTC](https://discourse.shapr3d.com/t/help-with-copy-of-real-model/17639/3 "2022-02-25T17:12:26Z")

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This would be ideal for drawing a cross section of the shape, then revolve it around the center axis.

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**Author:** ![McD](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/mcd/32/15504_2.png) [@McD](https://discourse.shapr3d.com/u/McD)\
**Post date:** [February 25, 2022, 5:20pm UTC](https://discourse.shapr3d.com/t/help-with-copy-of-real-model/17639/4 "2022-02-25T17:20:21Z")

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Here is a quick video of a similar shape, to show concept of the methodology. [iCloud](https://share.icloud.com/photos/072YfLmywQbiMUhtLXSZV30jQ)

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**Author:** ![prochazkao](https://avatars.discourse-cdn.com/v4/letter/p/977dab/32.png) [@prochazkao](https://discourse.shapr3d.com/u/prochazkao)\
**Post date:** [February 25, 2022, 7:43pm UTC](https://discourse.shapr3d.com/t/help-with-copy-of-real-model/17639/5 "2022-02-25T19:43:01Z")

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Perfect idea. Thank you. But how you draw this irregular curves please?

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/8/81c03df5e3af6747b510cbbf0dcafc1db30b5792.jpeg)

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**Author:** ![McD](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/mcd/32/15504_2.png) [@McD](https://discourse.shapr3d.com/u/McD)\
**Post date:** [February 25, 2022, 8:16pm UTC](https://discourse.shapr3d.com/t/help-with-copy-of-real-model/17639/6 "2022-02-25T20:16:05Z")

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I drew those using the Spline tool, then used Offset to create the parallel line. I then connected the ends, to close the shape.

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**Author:** ![prochazkao](https://avatars.discourse-cdn.com/v4/letter/p/977dab/32.png) [@prochazkao](https://discourse.shapr3d.com/u/prochazkao)\
**Post date:** [February 26, 2022, 7:40pm UTC](https://discourse.shapr3d.com/t/help-with-copy-of-real-model/17639/7 "2022-02-26T19:40:53Z")

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Hello. This is my result. Thank you for help. Ondrej

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/3/386a6e05a9fb874216787988982ddbe785142579.jpeg)

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**Author:** ![McD](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/mcd/32/15504_2.png) [@McD](https://discourse.shapr3d.com/u/McD)\
**Post date:** [February 26, 2022, 8:01pm UTC](https://discourse.shapr3d.com/t/help-with-copy-of-real-model/17639/8 "2022-02-26T20:01:07Z")

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Great job!